diff --git a/examples/sqlx-mysql/src/operation.rs b/examples/sqlx-mysql/src/operation.rs
index 733322ce..b1273e10 100644
--- a/examples/sqlx-mysql/src/operation.rs
+++ b/examples/sqlx-mysql/src/operation.rs
@@ -1,7 +1,7 @@
 use super::*;
 use sea_orm::{entity::*, error::*, query::*, DbConn};
 
-pub async fn all_about_operation(db: &DbConn) -> Result<(), SeaErr> {
+pub async fn all_about_operation(db: &DbConn) -> Result<(), DbErr> {
     insert_and_update(db).await?;
 
     println!("===== =====\n");
@@ -15,7 +15,7 @@ pub async fn all_about_operation(db: &DbConn) -> Result<(), SeaErr> {
     Ok(())
 }
 
-pub async fn insert_and_update(db: &DbConn) -> Result<(), SeaErr> {
+pub async fn insert_and_update(db: &DbConn) -> Result<(), DbErr> {
     let pear = fruit::ActiveModel {
         name: Set("pear".to_owned()),
         ..Default::default()
@@ -41,7 +41,7 @@ pub async fn insert_and_update(db: &DbConn) -> Result<(), SeaErr> {
     Ok(())
 }
 
-pub async fn save_active_model(db: &DbConn) -> Result<(), SeaErr> {
+pub async fn save_active_model(db: &DbConn) -> Result<(), DbErr> {
     let banana = fruit::ActiveModel {
         name: Set("Banana".to_owned()),
         ..Default::default()
@@ -79,7 +79,7 @@ mod form {
     }
 }
 
-async fn save_custom_active_model(db: &DbConn) -> Result<(), SeaErr> {
+async fn save_custom_active_model(db: &DbConn) -> Result<(), DbErr> {
     let pineapple = form::ActiveModel {
         id: Unset(None),
         name: Set("Pineapple".to_owned()),
diff --git a/examples/sqlx-mysql/src/select.rs b/examples/sqlx-mysql/src/select.rs
index 7033b9f9..9b2cf15c 100644
--- a/examples/sqlx-mysql/src/select.rs
+++ b/examples/sqlx-mysql/src/select.rs
@@ -1,7 +1,7 @@
 use super::*;
 use sea_orm::{entity::*, error::*, query::*, DbConn, FromQueryResult};
 
-pub async fn all_about_select(db: &DbConn) -> Result<(), SeaErr> {
+pub async fn all_about_select(db: &DbConn) -> Result<(), DbErr> {
     find_all(db).await?;
 
     println!("===== =====\n");
@@ -41,7 +41,7 @@ pub async fn all_about_select(db: &DbConn) -> Result<(), SeaErr> {
     Ok(())
 }
 
-async fn find_all(db: &DbConn) -> Result<(), SeaErr> {
+async fn find_all(db: &DbConn) -> Result<(), DbErr> {
     print!("find all cakes: ");
 
     let cakes: Vec<cake::Model> = Cake::find().all(db).await?;
@@ -63,7 +63,7 @@ async fn find_all(db: &DbConn) -> Result<(), SeaErr> {
     Ok(())
 }
 
-async fn find_together(db: &DbConn) -> Result<(), SeaErr> {
+async fn find_together(db: &DbConn) -> Result<(), DbErr> {
     print!("find cakes and fruits: ");
 
     let both = Cake::find().find_also_related(Fruit).all(db).await?;
@@ -82,7 +82,7 @@ impl Cake {
     }
 }
 
-async fn find_one(db: &DbConn) -> Result<(), SeaErr> {
+async fn find_one(db: &DbConn) -> Result<(), DbErr> {
     print!("find one by primary key: ");
 
     let cheese: Option<cake::Model> = Cake::find_by_id(1).one(db).await?;
@@ -112,7 +112,7 @@ async fn find_one(db: &DbConn) -> Result<(), SeaErr> {
     Ok(())
 }
 
-async fn count_fruits_by_cake(db: &DbConn) -> Result<(), SeaErr> {
+async fn count_fruits_by_cake(db: &DbConn) -> Result<(), DbErr> {
     #[derive(Debug, FromQueryResult)]
     struct SelectResult {
         name: String,
@@ -138,7 +138,7 @@ async fn count_fruits_by_cake(db: &DbConn) -> Result<(), SeaErr> {
     Ok(())
 }
 
-async fn find_many_to_many(db: &DbConn) -> Result<(), SeaErr> {
+async fn find_many_to_many(db: &DbConn) -> Result<(), DbErr> {
     print!("find cakes and fillings: ");
 
     let both: Vec<(cake::Model, Vec<filling::Model>)> =
@@ -178,7 +178,7 @@ async fn find_many_to_many(db: &DbConn) -> Result<(), SeaErr> {
     Ok(())
 }
 
-async fn all_about_select_json(db: &DbConn) -> Result<(), SeaErr> {
+async fn all_about_select_json(db: &DbConn) -> Result<(), DbErr> {
     find_all_json(&db).await?;
 
     println!("===== =====\n");
@@ -192,7 +192,7 @@ async fn all_about_select_json(db: &DbConn) -> Result<(), SeaErr> {
     Ok(())
 }
 
-async fn find_all_json(db: &DbConn) -> Result<(), SeaErr> {
+async fn find_all_json(db: &DbConn) -> Result<(), DbErr> {
     print!("find all cakes: ");
 
     let cakes = Cake::find().into_json().all(db).await?;
@@ -208,7 +208,7 @@ async fn find_all_json(db: &DbConn) -> Result<(), SeaErr> {
     Ok(())
 }
 
-async fn find_together_json(db: &DbConn) -> Result<(), SeaErr> {
+async fn find_together_json(db: &DbConn) -> Result<(), DbErr> {
     print!("find cakes and fruits: ");
 
     let cakes_fruits = Cake::find()
@@ -225,7 +225,7 @@ async fn find_together_json(db: &DbConn) -> Result<(), SeaErr> {
     Ok(())
 }
 
-async fn count_fruits_by_cake_json(db: &DbConn) -> Result<(), SeaErr> {
+async fn count_fruits_by_cake_json(db: &DbConn) -> Result<(), DbErr> {
     print!("count fruits by cake: ");
 
     let count = Cake::find()
@@ -243,7 +243,7 @@ async fn count_fruits_by_cake_json(db: &DbConn) -> Result<(), SeaErr> {
     Ok(())
 }
 
-async fn find_all_stream(db: &DbConn) -> Result<(), SeaErr> {
+async fn find_all_stream(db: &DbConn) -> Result<(), DbErr> {
     use async_std::task::sleep;
     use futures::TryStreamExt;
     use std::time::Duration;
@@ -291,7 +291,7 @@ async fn find_all_stream(db: &DbConn) -> Result<(), SeaErr> {
     Ok(())
 }
 
-async fn find_first_page(db: &DbConn) -> Result<(), SeaErr> {
+async fn find_first_page(db: &DbConn) -> Result<(), DbErr> {
     println!("fruits first page: ");
     let page = fruit::Entity::find().paginate(db, 2).fetch_page(0).await?;
     for fruit in page {
@@ -301,7 +301,7 @@ async fn find_first_page(db: &DbConn) -> Result<(), SeaErr> {
     Ok(())
 }
 
-async fn find_num_pages(db: &DbConn) -> Result<(), SeaErr> {
+async fn find_num_pages(db: &DbConn) -> Result<(), DbErr> {
     println!("fruits number of page: ");
     let num_pages = fruit::Entity::find().paginate(db, 2).num_pages().await?;
     println!("{:?}", num_pages);
diff --git a/sea-orm-macros/src/derives/active_model.rs b/sea-orm-macros/src/derives/active_model.rs
index ebf642e1..76e80a02 100644
--- a/sea-orm-macros/src/derives/active_model.rs
+++ b/sea-orm-macros/src/derives/active_model.rs
@@ -37,11 +37,11 @@ pub fn expand_derive_active_model(ident: Ident, data: Data) -> syn::Result<Token
         }
 
         impl ActiveModel {
-            pub async fn save(self, db: &sea_orm::DatabaseConnection) -> Result<Self, sea_orm::SeaErr> {
+            pub async fn save(self, db: &sea_orm::DatabaseConnection) -> Result<Self, sea_orm::DbErr> {
                 sea_orm::save_active_model::<Self, Entity>(self, db).await
             }
 
-            pub async fn delete(self, db: &sea_orm::DatabaseConnection) -> Result<sea_orm::DeleteResult, sea_orm::SeaErr> {
+            pub async fn delete(self, db: &sea_orm::DatabaseConnection) -> Result<sea_orm::DeleteResult, sea_orm::DbErr> {
                 sea_orm::delete_active_model::<Self, Entity>(self, db).await
             }
         }
diff --git a/sea-orm-macros/src/derives/from_query_result.rs b/sea-orm-macros/src/derives/from_query_result.rs
index a87b4b63..ef24c18d 100644
--- a/sea-orm-macros/src/derives/from_query_result.rs
+++ b/sea-orm-macros/src/derives/from_query_result.rs
@@ -30,7 +30,7 @@ pub fn expand_derive_from_query_result(ident: Ident, data: Data) -> syn::Result<
 
     Ok(quote!(
         impl sea_orm::FromQueryResult for #ident {
-            fn from_query_result(row: &sea_orm::QueryResult, pre: &str) -> Result<Self, sea_orm::SeaErr> {
+            fn from_query_result(row: &sea_orm::QueryResult, pre: &str) -> Result<Self, sea_orm::DbErr> {
                 Ok(Self {
                     #(#field: row.try_get(pre, #name)?),*
                 })
diff --git a/sea-orm-macros/src/derives/model.rs b/sea-orm-macros/src/derives/model.rs
index 57db16ab..1faf3642 100644
--- a/sea-orm-macros/src/derives/model.rs
+++ b/sea-orm-macros/src/derives/model.rs
@@ -47,7 +47,7 @@ pub fn expand_derive_model(ident: Ident, data: Data) -> syn::Result<TokenStream>
         }
 
         impl sea_orm::FromQueryResult for #ident {
-            fn from_query_result(row: &sea_orm::QueryResult, pre: &str) -> Result<Self, sea_orm::SeaErr> {
+            fn from_query_result(row: &sea_orm::QueryResult, pre: &str) -> Result<Self, sea_orm::DbErr> {
                 Ok(Self {
                     #(#field: row.try_get(pre, <<Self as ModelTrait>::Entity as EntityTrait>::Column::#name.as_str().into())?),*
                 })
diff --git a/src/database/connection.rs b/src/database/connection.rs
index 0a138cc9..6336db48 100644
--- a/src/database/connection.rs
+++ b/src/database/connection.rs
@@ -77,7 +77,7 @@ impl DatabaseConnection {
         }
     }
 
-    pub async fn execute(&self, stmt: Statement) -> Result<ExecResult, SeaErr> {
+    pub async fn execute(&self, stmt: Statement) -> Result<ExecResult, DbErr> {
         match self {
             #[cfg(feature = "sqlx-mysql")]
             DatabaseConnection::SqlxMySqlPoolConnection(conn) => conn.execute(stmt).await,
@@ -89,7 +89,7 @@ impl DatabaseConnection {
         }
     }
 
-    pub async fn query_one(&self, stmt: Statement) -> Result<Option<QueryResult>, SeaErr> {
+    pub async fn query_one(&self, stmt: Statement) -> Result<Option<QueryResult>, DbErr> {
         match self {
             #[cfg(feature = "sqlx-mysql")]
             DatabaseConnection::SqlxMySqlPoolConnection(conn) => conn.query_one(stmt).await,
@@ -101,7 +101,7 @@ impl DatabaseConnection {
         }
     }
 
-    pub async fn query_all(&self, stmt: Statement) -> Result<Vec<QueryResult>, SeaErr> {
+    pub async fn query_all(&self, stmt: Statement) -> Result<Vec<QueryResult>, DbErr> {
         match self {
             #[cfg(feature = "sqlx-mysql")]
             DatabaseConnection::SqlxMySqlPoolConnection(conn) => conn.query_all(stmt).await,
diff --git a/src/database/mock.rs b/src/database/mock.rs
index e80ed4b5..2f99b32c 100644
--- a/src/database/mock.rs
+++ b/src/database/mock.rs
@@ -68,14 +68,14 @@ impl MockDatabase {
 }
 
 impl MockDatabaseTrait for MockDatabase {
-    fn execute(&mut self, counter: usize, statement: Statement) -> Result<ExecResult, SeaErr> {
+    fn execute(&mut self, counter: usize, statement: Statement) -> Result<ExecResult, DbErr> {
         self.transaction_log.push(Transaction::one(statement));
         if counter < self.exec_results.len() {
             Ok(ExecResult {
                 result: ExecResultHolder::Mock(std::mem::take(&mut self.exec_results[counter])),
             })
         } else {
-            Err(SeaErr::Execution)
+            Err(DbErr::Execution)
         }
     }
 
@@ -83,7 +83,7 @@ impl MockDatabaseTrait for MockDatabase {
         &mut self,
         counter: usize,
         statement: Statement,
-    ) -> Result<Vec<QueryResult>, SeaErr> {
+    ) -> Result<Vec<QueryResult>, DbErr> {
         self.transaction_log.push(Transaction::one(statement));
         if counter < self.query_results.len() {
             Ok(std::mem::take(&mut self.query_results[counter])
@@ -93,7 +93,7 @@ impl MockDatabaseTrait for MockDatabase {
                 })
                 .collect())
         } else {
-            Err(SeaErr::Query)
+            Err(DbErr::Query)
         }
     }
 
@@ -103,7 +103,7 @@ impl MockDatabaseTrait for MockDatabase {
 }
 
 impl MockRow {
-    pub fn try_get<T>(&self, col: &str) -> Result<T, SeaErr>
+    pub fn try_get<T>(&self, col: &str) -> Result<T, DbErr>
     where
         T: ValueType,
     {
diff --git a/src/database/mod.rs b/src/database/mod.rs
index 80f261b1..5150e3d7 100644
--- a/src/database/mod.rs
+++ b/src/database/mod.rs
@@ -10,13 +10,13 @@ pub use mock::*;
 pub use statement::*;
 pub use transaction::*;
 
-use crate::SeaErr;
+use crate::DbErr;
 
 #[derive(Debug, Default)]
 pub struct Database;
 
 impl Database {
-    pub async fn connect(string: &str) -> Result<DatabaseConnection, SeaErr> {
+    pub async fn connect(string: &str) -> Result<DatabaseConnection, DbErr> {
         #[cfg(feature = "sqlx-mysql")]
         if crate::SqlxMySqlConnector::accepts(string) {
             return Ok(crate::SqlxMySqlConnector::connect(string).await?);
@@ -29,6 +29,6 @@ impl Database {
         if crate::MockDatabaseConnector::accepts(string) {
             return Ok(crate::MockDatabaseConnector::connect(string).await?);
         }
-        Err(SeaErr::Connection)
+        Err(DbErr::Connection)
     }
 }
diff --git a/src/driver/mock.rs b/src/driver/mock.rs
index 7ffffbdf..96224c38 100644
--- a/src/driver/mock.rs
+++ b/src/driver/mock.rs
@@ -15,9 +15,9 @@ pub struct MockDatabaseConnection {
 }
 
 pub trait MockDatabaseTrait: Send {
-    fn execute(&mut self, counter: usize, stmt: Statement) -> Result<ExecResult, SeaErr>;
+    fn execute(&mut self, counter: usize, stmt: Statement) -> Result<ExecResult, DbErr>;
 
-    fn query(&mut self, counter: usize, stmt: Statement) -> Result<Vec<QueryResult>, SeaErr>;
+    fn query(&mut self, counter: usize, stmt: Statement) -> Result<Vec<QueryResult>, DbErr>;
 
     fn drain_transaction_log(&mut self) -> Vec<Transaction>;
 }
@@ -27,7 +27,7 @@ impl MockDatabaseConnector {
         string.starts_with("mock://")
     }
 
-    pub async fn connect(_string: &str) -> Result<DatabaseConnection, SeaErr> {
+    pub async fn connect(_string: &str) -> Result<DatabaseConnection, DbErr> {
         Ok(DatabaseConnection::MockDatabaseConnection(
             MockDatabaseConnection::new(MockDatabase::new()),
         ))
@@ -49,20 +49,20 @@ impl MockDatabaseConnection {
         &self.mocker
     }
 
-    pub async fn execute(&self, statement: Statement) -> Result<ExecResult, SeaErr> {
+    pub async fn execute(&self, statement: Statement) -> Result<ExecResult, DbErr> {
         debug_print!("{}", statement);
         let counter = self.counter.fetch_add(1, Ordering::SeqCst);
         self.mocker.lock().unwrap().execute(counter, statement)
     }
 
-    pub async fn query_one(&self, statement: Statement) -> Result<Option<QueryResult>, SeaErr> {
+    pub async fn query_one(&self, statement: Statement) -> Result<Option<QueryResult>, DbErr> {
         debug_print!("{}", statement);
         let counter = self.counter.fetch_add(1, Ordering::SeqCst);
         let result = self.mocker.lock().unwrap().query(counter, statement)?;
         Ok(result.into_iter().next())
     }
 
-    pub async fn query_all(&self, statement: Statement) -> Result<Vec<QueryResult>, SeaErr> {
+    pub async fn query_all(&self, statement: Statement) -> Result<Vec<QueryResult>, DbErr> {
         debug_print!("{}", statement);
         let counter = self.counter.fetch_add(1, Ordering::SeqCst);
         self.mocker.lock().unwrap().query(counter, statement)
diff --git a/src/driver/sqlx_mysql.rs b/src/driver/sqlx_mysql.rs
index 18e06154..9076c1ed 100644
--- a/src/driver/sqlx_mysql.rs
+++ b/src/driver/sqlx_mysql.rs
@@ -19,13 +19,13 @@ impl SqlxMySqlConnector {
         string.starts_with("mysql://")
     }
 
-    pub async fn connect(string: &str) -> Result<DatabaseConnection, SeaErr> {
+    pub async fn connect(string: &str) -> Result<DatabaseConnection, DbErr> {
         if let Ok(pool) = MySqlPool::connect(string).await {
             Ok(DatabaseConnection::SqlxMySqlPoolConnection(
                 SqlxMySqlPoolConnection { pool },
             ))
         } else {
-            Err(SeaErr::Connection)
+            Err(DbErr::Connection)
         }
     }
 }
@@ -37,7 +37,7 @@ impl SqlxMySqlConnector {
 }
 
 impl SqlxMySqlPoolConnection {
-    pub async fn execute(&self, stmt: Statement) -> Result<ExecResult, SeaErr> {
+    pub async fn execute(&self, stmt: Statement) -> Result<ExecResult, DbErr> {
         debug_print!("{}", stmt);
 
         let query = sqlx_query(&stmt);
@@ -46,10 +46,10 @@ impl SqlxMySqlPoolConnection {
                 return Ok(res.into());
             }
         }
-        Err(SeaErr::Execution)
+        Err(DbErr::Execution)
     }
 
-    pub async fn query_one(&self, stmt: Statement) -> Result<Option<QueryResult>, SeaErr> {
+    pub async fn query_one(&self, stmt: Statement) -> Result<Option<QueryResult>, DbErr> {
         debug_print!("{}", stmt);
 
         let query = sqlx_query(&stmt);
@@ -60,11 +60,11 @@ impl SqlxMySqlPoolConnection {
                 Ok(None)
             }
         } else {
-            Err(SeaErr::Query)
+            Err(DbErr::Query)
         }
     }
 
-    pub async fn query_all(&self, stmt: Statement) -> Result<Vec<QueryResult>, SeaErr> {
+    pub async fn query_all(&self, stmt: Statement) -> Result<Vec<QueryResult>, DbErr> {
         debug_print!("{}", stmt);
 
         let query = sqlx_query(&stmt);
@@ -73,7 +73,7 @@ impl SqlxMySqlPoolConnection {
                 return Ok(rows.into_iter().map(|r| r.into()).collect());
             }
         }
-        Err(SeaErr::Query)
+        Err(DbErr::Query)
     }
 }
 
diff --git a/src/driver/sqlx_sqlite.rs b/src/driver/sqlx_sqlite.rs
index e5290216..94425eb4 100644
--- a/src/driver/sqlx_sqlite.rs
+++ b/src/driver/sqlx_sqlite.rs
@@ -19,13 +19,13 @@ impl SqlxSqliteConnector {
         string.starts_with("sqlite:")
     }
 
-    pub async fn connect(string: &str) -> Result<DatabaseConnection, SeaErr> {
+    pub async fn connect(string: &str) -> Result<DatabaseConnection, DbErr> {
         if let Ok(pool) = SqlitePool::connect(string).await {
             Ok(DatabaseConnection::SqlxSqlitePoolConnection(
                 SqlxSqlitePoolConnection { pool },
             ))
         } else {
-            Err(SeaErr::Connection)
+            Err(DbErr::Connection)
         }
     }
 }
@@ -37,7 +37,7 @@ impl SqlxSqliteConnector {
 }
 
 impl SqlxSqlitePoolConnection {
-    pub async fn execute(&self, stmt: Statement) -> Result<ExecResult, SeaErr> {
+    pub async fn execute(&self, stmt: Statement) -> Result<ExecResult, DbErr> {
         debug_print!("{}", stmt);
 
         let query = sqlx_query(&stmt);
@@ -46,10 +46,10 @@ impl SqlxSqlitePoolConnection {
                 return Ok(res.into());
             }
         }
-        Err(SeaErr::Execution)
+        Err(DbErr::Execution)
     }
 
-    pub async fn query_one(&self, stmt: Statement) -> Result<Option<QueryResult>, SeaErr> {
+    pub async fn query_one(&self, stmt: Statement) -> Result<Option<QueryResult>, DbErr> {
         debug_print!("{}", stmt);
 
         let query = sqlx_query(&stmt);
@@ -60,11 +60,11 @@ impl SqlxSqlitePoolConnection {
                 Ok(None)
             }
         } else {
-            Err(SeaErr::Query)
+            Err(DbErr::Query)
         }
     }
 
-    pub async fn query_all(&self, stmt: Statement) -> Result<Vec<QueryResult>, SeaErr> {
+    pub async fn query_all(&self, stmt: Statement) -> Result<Vec<QueryResult>, DbErr> {
         debug_print!("{}", stmt);
 
         let query = sqlx_query(&stmt);
@@ -73,7 +73,7 @@ impl SqlxSqlitePoolConnection {
                 return Ok(rows.into_iter().map(|r| r.into()).collect());
             }
         }
-        Err(SeaErr::Query)
+        Err(DbErr::Query)
     }
 }
 
diff --git a/src/entity/active_model.rs b/src/entity/active_model.rs
index 6cbaf906..df1fc869 100644
--- a/src/entity/active_model.rs
+++ b/src/entity/active_model.rs
@@ -66,8 +66,8 @@ pub trait ActiveModelTrait: Clone + Debug {
     fn default() -> Self;
 
     // below is not yet possible. right now we define these methods in DeriveActiveModel
-    // fn save(self, db: &DatabaseConnection) -> impl Future<Output = Result<Self, SeaErr>>;
-    // fn delete(self, db: &DatabaseConnection) -> impl Future<Output = Result<DeleteResult, SeaErr>>;
+    // fn save(self, db: &DatabaseConnection) -> impl Future<Output = Result<Self, DbErr>>;
+    // fn delete(self, db: &DatabaseConnection) -> impl Future<Output = Result<DeleteResult, DbErr>>;
 }
 
 /// Behaviors for users to override
@@ -188,7 +188,7 @@ where
 
 /// Insert the model if primary key is unset, update otherwise.
 /// Only works if the entity has auto increment primary key.
-pub async fn save_active_model<A, E>(mut am: A, db: &DatabaseConnection) -> Result<A, SeaErr>
+pub async fn save_active_model<A, E>(mut am: A, db: &DatabaseConnection) -> Result<A, DbErr>
 where
     A: ActiveModelBehavior + ActiveModelTrait<Entity = E>,
     E::Model: IntoActiveModel<A>,
@@ -212,7 +212,7 @@ where
     Ok(am)
 }
 
-async fn insert_and_select_active_model<A, E>(am: A, db: &DatabaseConnection) -> Result<A, SeaErr>
+async fn insert_and_select_active_model<A, E>(am: A, db: &DatabaseConnection) -> Result<A, DbErr>
 where
     A: ActiveModelTrait<Entity = E>,
     E::Model: IntoActiveModel<A>,
@@ -227,14 +227,14 @@ where
         let model: Option<E::Model> = res?;
         match model {
             Some(model) => Ok(model.into_active_model()),
-            None => Err(SeaErr::Execution),
+            None => Err(DbErr::Execution),
         }
     } else {
         Ok(A::default())
     }
 }
 
-async fn update_active_model<A, E>(am: A, db: &DatabaseConnection) -> Result<A, SeaErr>
+async fn update_active_model<A, E>(am: A, db: &DatabaseConnection) -> Result<A, DbErr>
 where
     A: ActiveModelTrait<Entity = E>,
     E: EntityTrait,
@@ -246,7 +246,7 @@ where
 pub async fn delete_active_model<A, E>(
     mut am: A,
     db: &DatabaseConnection,
-) -> Result<DeleteResult, SeaErr>
+) -> Result<DeleteResult, DbErr>
 where
     A: ActiveModelBehavior + ActiveModelTrait<Entity = E>,
     E: EntityTrait,
diff --git a/src/entity/model.rs b/src/entity/model.rs
index 4e4027d3..73dd66ae 100644
--- a/src/entity/model.rs
+++ b/src/entity/model.rs
@@ -1,4 +1,4 @@
-use crate::{EntityTrait, SeaErr, QueryFilter, QueryResult, Related, Select};
+use crate::{EntityTrait, DbErr, QueryFilter, QueryResult, Related, Select};
 pub use sea_query::Value;
 use std::fmt::Debug;
 
@@ -19,11 +19,11 @@ pub trait ModelTrait: Clone + Debug {
 }
 
 pub trait FromQueryResult {
-    fn from_query_result(res: &QueryResult, pre: &str) -> Result<Self, SeaErr>
+    fn from_query_result(res: &QueryResult, pre: &str) -> Result<Self, DbErr>
     where
         Self: Sized;
 
-    fn from_query_result_optional(res: &QueryResult, pre: &str) -> Result<Option<Self>, SeaErr>
+    fn from_query_result_optional(res: &QueryResult, pre: &str) -> Result<Option<Self>, DbErr>
     where
         Self: Sized,
     {
diff --git a/src/error.rs b/src/error.rs
index 4b275416..de649dcb 100644
--- a/src/error.rs
+++ b/src/error.rs
@@ -1,7 +1,7 @@
 use std::{error, fmt};
 
 #[derive(Debug)]
-pub enum SeaErr {
+pub enum DbErr {
     Connection,
     Execution,
     Query,
@@ -9,7 +9,7 @@ pub enum SeaErr {
     Sqlx(sqlx::Error),
 }
 
-impl fmt::Display for SeaErr {
+impl fmt::Display for DbErr {
     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
         match self {
             Self::Connection => write!(f, "{:?}", "Connection Error"),
@@ -21,7 +21,7 @@ impl fmt::Display for SeaErr {
     }
 }
 
-impl error::Error for SeaErr {
+impl error::Error for DbErr {
     fn source(&self) -> Option<&(dyn error::Error + 'static)> {
         match self {
             Self::Connection => None,
@@ -34,7 +34,7 @@ impl error::Error for SeaErr {
 }
 
 #[cfg(feature = "sqlx-dep")]
-impl From<sqlx::Error> for SeaErr {
+impl From<sqlx::Error> for DbErr {
     fn from(sqlx_err: sqlx::Error) -> Self {
         Self::Sqlx(sqlx_err)
     }
diff --git a/src/executor/delete.rs b/src/executor/delete.rs
index 4e0cb120..eebd0fc9 100644
--- a/src/executor/delete.rs
+++ b/src/executor/delete.rs
@@ -21,7 +21,7 @@ where
     pub fn exec(
         self,
         db: &'a DatabaseConnection,
-    ) -> impl Future<Output = Result<DeleteResult, SeaErr>> + 'a {
+    ) -> impl Future<Output = Result<DeleteResult, DbErr>> + 'a {
         // so that self is dropped before entering await
         exec_delete_only(self.query, db)
     }
@@ -34,7 +34,7 @@ where
     pub fn exec(
         self,
         db: &'a DatabaseConnection,
-    ) -> impl Future<Output = Result<DeleteResult, SeaErr>> + 'a {
+    ) -> impl Future<Output = Result<DeleteResult, DbErr>> + 'a {
         // so that self is dropped before entering await
         exec_delete_only(self.query, db)
     }
@@ -48,7 +48,7 @@ impl Deleter {
     pub fn exec(
         self,
         db: &DatabaseConnection,
-    ) -> impl Future<Output = Result<DeleteResult, SeaErr>> + '_ {
+    ) -> impl Future<Output = Result<DeleteResult, DbErr>> + '_ {
         let builder = db.get_query_builder_backend();
         exec_delete(builder.build(&self.query), db)
     }
@@ -57,7 +57,7 @@ impl Deleter {
 async fn exec_delete_only(
     query: DeleteStatement,
     db: &DatabaseConnection,
-) -> Result<DeleteResult, SeaErr> {
+) -> Result<DeleteResult, DbErr> {
     Deleter::new(query).exec(db).await
 }
 
@@ -65,7 +65,7 @@ async fn exec_delete_only(
 async fn exec_delete(
     statement: Statement,
     db: &DatabaseConnection,
-) -> Result<DeleteResult, SeaErr> {
+) -> Result<DeleteResult, DbErr> {
     let result = db.execute(statement).await?;
     Ok(DeleteResult {
         rows_affected: result.rows_affected(),
diff --git a/src/executor/insert.rs b/src/executor/insert.rs
index ac8616f3..cf36d5ff 100644
--- a/src/executor/insert.rs
+++ b/src/executor/insert.rs
@@ -19,7 +19,7 @@ where
     pub fn exec(
         self,
         db: &DatabaseConnection,
-    ) -> impl Future<Output = Result<InsertResult, SeaErr>> + '_ {
+    ) -> impl Future<Output = Result<InsertResult, DbErr>> + '_ {
         // so that self is dropped before entering await
         Inserter::new(self.into_query()).exec(db)
     }
@@ -33,7 +33,7 @@ impl Inserter {
     pub fn exec(
         self,
         db: &DatabaseConnection,
-    ) -> impl Future<Output = Result<InsertResult, SeaErr>> + '_ {
+    ) -> impl Future<Output = Result<InsertResult, DbErr>> + '_ {
         let builder = db.get_query_builder_backend();
         exec_insert(builder.build(&self.query), db)
     }
@@ -43,7 +43,7 @@ impl Inserter {
 async fn exec_insert(
     statement: Statement,
     db: &DatabaseConnection,
-) -> Result<InsertResult, SeaErr> {
+) -> Result<InsertResult, DbErr> {
     let result = db.execute(statement).await?;
     // TODO: Postgres instead use query_one + returning clause
     Ok(InsertResult {
diff --git a/src/executor/paginator.rs b/src/executor/paginator.rs
index 4ab8cdb5..8ea2af9f 100644
--- a/src/executor/paginator.rs
+++ b/src/executor/paginator.rs
@@ -23,7 +23,7 @@ where
     S: SelectorTrait + 'db,
 {
     /// Fetch a specific page
-    pub async fn fetch_page(&self, page: usize) -> Result<Vec<S::Item>, SeaErr> {
+    pub async fn fetch_page(&self, page: usize) -> Result<Vec<S::Item>, DbErr> {
         let query = self
             .query
             .clone()
@@ -42,12 +42,12 @@ where
     }
 
     /// Fetch the current page
-    pub async fn fetch(&self) -> Result<Vec<S::Item>, SeaErr> {
+    pub async fn fetch(&self) -> Result<Vec<S::Item>, DbErr> {
         self.fetch_page(self.page).await
     }
 
     /// Get the total number of pages
-    pub async fn num_pages(&self) -> Result<usize, SeaErr> {
+    pub async fn num_pages(&self) -> Result<usize, DbErr> {
         let builder = self.db.get_query_builder_backend();
         let stmt = builder.build(
             SelectStatement::new()
@@ -77,7 +77,7 @@ where
     }
 
     /// Fetch one page and increment the page counter
-    pub async fn fetch_and_next(&mut self) -> Result<Option<Vec<S::Item>>, SeaErr> {
+    pub async fn fetch_and_next(&mut self) -> Result<Option<Vec<S::Item>>, DbErr> {
         let vec = self.fetch().await?;
         self.next();
         let opt = if !vec.is_empty() { Some(vec) } else { None };
@@ -85,7 +85,7 @@ where
     }
 
     /// Convert self into an async stream
-    pub fn into_stream(mut self) -> PinBoxStream<'db, Result<Vec<S::Item>, SeaErr>> {
+    pub fn into_stream(mut self) -> PinBoxStream<'db, Result<Vec<S::Item>, DbErr>> {
         Box::pin(stream! {
             loop {
                 if let Some(vec) = self.fetch_and_next().await? {
@@ -148,7 +148,7 @@ mod tests {
     }
 
     #[async_std::test]
-    async fn fetch_page() -> Result<(), SeaErr> {
+    async fn fetch_page() -> Result<(), DbErr> {
         let (db, pages) = setup();
 
         let paginator = fruit::Entity::find().paginate(&db, 2);
@@ -178,7 +178,7 @@ mod tests {
     }
 
     #[async_std::test]
-    async fn fetch() -> Result<(), SeaErr> {
+    async fn fetch() -> Result<(), DbErr> {
         let (db, pages) = setup();
 
         let mut paginator = fruit::Entity::find().paginate(&db, 2);
@@ -212,7 +212,7 @@ mod tests {
     }
 
     #[async_std::test]
-    async fn num_pages() -> Result<(), SeaErr> {
+    async fn num_pages() -> Result<(), DbErr> {
         let (db, num_rows) = setup_num_rows();
 
         let num_rows = num_rows as usize;
@@ -244,7 +244,7 @@ mod tests {
     }
 
     #[async_std::test]
-    async fn next_and_cur_page() -> Result<(), SeaErr> {
+    async fn next_and_cur_page() -> Result<(), DbErr> {
         let (db, _) = setup();
 
         let mut paginator = fruit::Entity::find().paginate(&db, 2);
@@ -260,7 +260,7 @@ mod tests {
     }
 
     #[async_std::test]
-    async fn fetch_and_next() -> Result<(), SeaErr> {
+    async fn fetch_and_next() -> Result<(), DbErr> {
         let (db, pages) = setup();
 
         let mut paginator = fruit::Entity::find().paginate(&db, 2);
@@ -295,7 +295,7 @@ mod tests {
     }
 
     #[async_std::test]
-    async fn into_stream() -> Result<(), SeaErr> {
+    async fn into_stream() -> Result<(), DbErr> {
         let (db, pages) = setup();
 
         let mut fruit_stream = fruit::Entity::find().paginate(&db, 2).into_stream();
diff --git a/src/executor/query.rs b/src/executor/query.rs
index 13582fe4..1452a4d6 100644
--- a/src/executor/query.rs
+++ b/src/executor/query.rs
@@ -1,4 +1,4 @@
-use crate::SeaErr;
+use crate::DbErr;
 use std::fmt;
 
 #[derive(Debug)]
@@ -16,7 +16,7 @@ pub(crate) enum QueryResultRow {
 }
 
 pub trait TryGetable {
-    fn try_get(res: &QueryResult, pre: &str, col: &str) -> Result<Self, SeaErr>
+    fn try_get(res: &QueryResult, pre: &str, col: &str) -> Result<Self, DbErr>
     where
         Self: Sized;
 }
@@ -24,7 +24,7 @@ pub trait TryGetable {
 // QueryResult //
 
 impl QueryResult {
-    pub fn try_get<T>(&self, pre: &str, col: &str) -> Result<T, SeaErr>
+    pub fn try_get<T>(&self, pre: &str, col: &str) -> Result<T, DbErr>
     where
         T: TryGetable,
     {
@@ -50,7 +50,7 @@ impl fmt::Debug for QueryResultRow {
 macro_rules! try_getable_all {
     ( $type: ty ) => {
         impl TryGetable for $type {
-            fn try_get(res: &QueryResult, pre: &str, col: &str) -> Result<Self, SeaErr> {
+            fn try_get(res: &QueryResult, pre: &str, col: &str) -> Result<Self, DbErr> {
                 let column = format!("{}{}", pre, col);
                 match &res.row {
                     #[cfg(feature = "sqlx-mysql")]
@@ -70,7 +70,7 @@ macro_rules! try_getable_all {
         }
 
         impl TryGetable for Option<$type> {
-            fn try_get(res: &QueryResult, pre: &str, col: &str) -> Result<Self, SeaErr> {
+            fn try_get(res: &QueryResult, pre: &str, col: &str) -> Result<Self, DbErr> {
                 let column = format!("{}{}", pre, col);
                 match &res.row {
                     #[cfg(feature = "sqlx-mysql")]
@@ -103,7 +103,7 @@ macro_rules! try_getable_all {
 macro_rules! try_getable_mysql {
     ( $type: ty ) => {
         impl TryGetable for $type {
-            fn try_get(res: &QueryResult, pre: &str, col: &str) -> Result<Self, SeaErr> {
+            fn try_get(res: &QueryResult, pre: &str, col: &str) -> Result<Self, DbErr> {
                 let column = format!("{}{}", pre, col);
                 match &res.row {
                     #[cfg(feature = "sqlx-mysql")]
@@ -122,7 +122,7 @@ macro_rules! try_getable_mysql {
         }
 
         impl TryGetable for Option<$type> {
-            fn try_get(res: &QueryResult, pre: &str, col: &str) -> Result<Self, SeaErr> {
+            fn try_get(res: &QueryResult, pre: &str, col: &str) -> Result<Self, DbErr> {
                 let column = format!("{}{}", pre, col);
                 match &res.row {
                     #[cfg(feature = "sqlx-mysql")]
diff --git a/src/executor/select.rs b/src/executor/select.rs
index fa6e0868..607e0de0 100644
--- a/src/executor/select.rs
+++ b/src/executor/select.rs
@@ -18,7 +18,7 @@ where
 pub trait SelectorTrait {
     type Item: Sized;
 
-    fn from_raw_query_result(res: QueryResult) -> Result<Self::Item, SeaErr>;
+    fn from_raw_query_result(res: QueryResult) -> Result<Self::Item, DbErr>;
 }
 
 pub struct SelectModel<M>
@@ -43,7 +43,7 @@ where
 {
     type Item = M;
 
-    fn from_raw_query_result(res: QueryResult) -> Result<Self::Item, SeaErr> {
+    fn from_raw_query_result(res: QueryResult) -> Result<Self::Item, DbErr> {
         M::from_query_result(&res, "")
     }
 }
@@ -55,7 +55,7 @@ where
 {
     type Item = (M, Option<N>);
 
-    fn from_raw_query_result(res: QueryResult) -> Result<Self::Item, SeaErr> {
+    fn from_raw_query_result(res: QueryResult) -> Result<Self::Item, DbErr> {
         Ok((
             M::from_query_result(&res, combine::SELECT_A)?,
             N::from_query_result_optional(&res, combine::SELECT_B)?,
@@ -85,11 +85,11 @@ where
         }
     }
 
-    pub async fn one(self, db: &DatabaseConnection) -> Result<Option<E::Model>, SeaErr> {
+    pub async fn one(self, db: &DatabaseConnection) -> Result<Option<E::Model>, DbErr> {
         self.into_model::<E::Model>().one(db).await
     }
 
-    pub async fn all(self, db: &DatabaseConnection) -> Result<Vec<E::Model>, SeaErr> {
+    pub async fn all(self, db: &DatabaseConnection) -> Result<Vec<E::Model>, DbErr> {
         self.into_model::<E::Model>().all(db).await
     }
 
@@ -129,14 +129,14 @@ where
     pub async fn one(
         self,
         db: &DatabaseConnection,
-    ) -> Result<Option<(E::Model, Option<F::Model>)>, SeaErr> {
+    ) -> Result<Option<(E::Model, Option<F::Model>)>, DbErr> {
         self.into_model::<E::Model, F::Model>().one(db).await
     }
 
     pub async fn all(
         self,
         db: &DatabaseConnection,
-    ) -> Result<Vec<(E::Model, Option<F::Model>)>, SeaErr> {
+    ) -> Result<Vec<(E::Model, Option<F::Model>)>, DbErr> {
         self.into_model::<E::Model, F::Model>().all(db).await
     }
 }
@@ -168,14 +168,14 @@ where
     pub async fn one(
         self,
         db: &DatabaseConnection,
-    ) -> Result<Option<(E::Model, Option<F::Model>)>, SeaErr> {
+    ) -> Result<Option<(E::Model, Option<F::Model>)>, DbErr> {
         self.into_model::<E::Model, F::Model>().one(db).await
     }
 
     pub async fn all(
         self,
         db: &DatabaseConnection,
-    ) -> Result<Vec<(E::Model, Vec<F::Model>)>, SeaErr> {
+    ) -> Result<Vec<(E::Model, Vec<F::Model>)>, DbErr> {
         let rows = self.into_model::<E::Model, F::Model>().all(db).await?;
         Ok(consolidate_query_result::<E, F>(rows))
     }
@@ -185,7 +185,7 @@ impl<S> Selector<S>
 where
     S: SelectorTrait,
 {
-    pub async fn one(mut self, db: &DatabaseConnection) -> Result<Option<S::Item>, SeaErr> {
+    pub async fn one(mut self, db: &DatabaseConnection) -> Result<Option<S::Item>, DbErr> {
         let builder = db.get_query_builder_backend();
         self.query.limit(1);
         let row = db.query_one(builder.build(&self.query)).await?;
@@ -195,7 +195,7 @@ where
         }
     }
 
-    pub async fn all(self, db: &DatabaseConnection) -> Result<Vec<S::Item>, SeaErr> {
+    pub async fn all(self, db: &DatabaseConnection) -> Result<Vec<S::Item>, DbErr> {
         let builder = db.get_query_builder_backend();
         let rows = db.query_all(builder.build(&self.query)).await?;
         let mut models = Vec::new();
diff --git a/src/executor/update.rs b/src/executor/update.rs
index e2c0ae75..0a486afc 100644
--- a/src/executor/update.rs
+++ b/src/executor/update.rs
@@ -21,7 +21,7 @@ where
     pub fn exec(
         self,
         db: &'a DatabaseConnection,
-    ) -> impl Future<Output = Result<A, SeaErr>> + 'a {
+    ) -> impl Future<Output = Result<A, DbErr>> + 'a {
         // so that self is dropped before entering await
         exec_update_and_return_original(self.query, self.model, db)
     }
@@ -34,7 +34,7 @@ where
     pub fn exec(
         self,
         db: &'a DatabaseConnection,
-    ) -> impl Future<Output = Result<UpdateResult, SeaErr>> + 'a {
+    ) -> impl Future<Output = Result<UpdateResult, DbErr>> + 'a {
         // so that self is dropped before entering await
         exec_update_only(self.query, db)
     }
@@ -48,7 +48,7 @@ impl Updater {
     pub fn exec(
         self,
         db: &DatabaseConnection,
-    ) -> impl Future<Output = Result<UpdateResult, SeaErr>> + '_ {
+    ) -> impl Future<Output = Result<UpdateResult, DbErr>> + '_ {
         let builder = db.get_query_builder_backend();
         exec_update(builder.build(&self.query), db)
     }
@@ -57,7 +57,7 @@ impl Updater {
 async fn exec_update_only(
     query: UpdateStatement,
     db: &DatabaseConnection,
-) -> Result<UpdateResult, SeaErr> {
+) -> Result<UpdateResult, DbErr> {
     Updater::new(query).exec(db).await
 }
 
@@ -65,7 +65,7 @@ async fn exec_update_and_return_original<A>(
     query: UpdateStatement,
     model: A,
     db: &DatabaseConnection,
-) -> Result<A, SeaErr>
+) -> Result<A, DbErr>
 where
     A: ActiveModelTrait,
 {
@@ -77,7 +77,7 @@ where
 async fn exec_update(
     statement: Statement,
     db: &DatabaseConnection,
-) -> Result<UpdateResult, SeaErr> {
+) -> Result<UpdateResult, DbErr> {
     let result = db.execute(statement).await?;
     Ok(UpdateResult {
         rows_affected: result.rows_affected(),
diff --git a/src/lib.rs b/src/lib.rs
index c300c1fa..8ce34253 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -44,7 +44,7 @@
 //! ## Select
 //! ```
 //! # use sea_orm::{DbConn, error::*, entity::*, query::*, tests_cfg::*};
-//! # async fn function(db: &DbConn) -> Result<(), SeaErr> {
+//! # async fn function(db: &DbConn) -> Result<(), DbErr> {
 //! #
 //! // find all models
 //! let cakes: Vec<cake::Model> = Cake::find().all(db).await?;
@@ -74,7 +74,7 @@
 //! ## Insert
 //! ```
 //! # use sea_orm::{DbConn, error::*, entity::*, query::*, tests_cfg::*};
-//! # async fn function(db: &DbConn) -> Result<(), SeaErr> {
+//! # async fn function(db: &DbConn) -> Result<(), DbErr> {
 //! #
 //! let apple = fruit::ActiveModel {
 //!     name: Set("Apple".to_owned()),
@@ -94,7 +94,7 @@
 //! # Ok(())
 //! # }
 //! #
-//! # async fn function2(db: &DbConn) -> Result<(), SeaErr> {
+//! # async fn function2(db: &DbConn) -> Result<(), DbErr> {
 //! # let apple = fruit::ActiveModel {
 //! #     name: Set("Apple".to_owned()),
 //! #     ..Default::default() // no need to set primary key
@@ -117,12 +117,12 @@
 //! #
 //! use sea_orm::sea_query::{Expr, Value};
 //!
-//! # async fn function(db: &DbConn) -> Result<(), SeaErr> {
+//! # async fn function(db: &DbConn) -> Result<(), DbErr> {
 //! let pear: Option<fruit::Model> = Fruit::find_by_id(1).one(db).await?;
 //! # Ok(())
 //! # }
 //! #
-//! # async fn function2(db: &DbConn) -> Result<(), SeaErr> {
+//! # async fn function2(db: &DbConn) -> Result<(), DbErr> {
 //! # let pear: Option<fruit::Model> = Fruit::find_by_id(1).one(db).await.unwrap();
 //!
 //! let mut pear: fruit::ActiveModel = pear.unwrap().into();
@@ -145,7 +145,7 @@
 //! ```
 //! # use sea_orm::{DbConn, error::*, entity::*, query::*, tests_cfg::*};
 //! #
-//! # async fn function(db: &DbConn) -> Result<(), SeaErr> {
+//! # async fn function(db: &DbConn) -> Result<(), DbErr> {
 //! let banana = fruit::ActiveModel {
 //!     id: Unset(None),
 //!     name: Set("Banana".to_owned()),
@@ -167,12 +167,12 @@
 //! ```
 //! # use sea_orm::{DbConn, error::*, entity::*, query::*, tests_cfg::*};
 //! #
-//! # async fn function(db: &DbConn) -> Result<(), SeaErr> {
+//! # async fn function(db: &DbConn) -> Result<(), DbErr> {
 //! let orange: Option<fruit::Model> = Fruit::find_by_id(1).one(db).await?;
 //! # Ok(())
 //! # }
 //! #
-//! # async fn function2(db: &DbConn) -> Result<(), SeaErr> {
+//! # async fn function2(db: &DbConn) -> Result<(), DbErr> {
 //! # let orange: Option<fruit::Model> = Fruit::find_by_id(1).one(db).await.unwrap();
 //! let orange: fruit::ActiveModel = orange.unwrap().into();
 //!
diff --git a/src/query/json.rs b/src/query/json.rs
index 4c5cd65d..aa3d9c6c 100644
--- a/src/query/json.rs
+++ b/src/query/json.rs
@@ -1,9 +1,9 @@
-use crate::{FromQueryResult, SeaErr, QueryResult, QueryResultRow};
+use crate::{FromQueryResult, DbErr, QueryResult, QueryResultRow};
 use serde_json::Map;
 pub use serde_json::Value as JsonValue;
 
 impl FromQueryResult for JsonValue {
-    fn from_query_result(res: &QueryResult, pre: &str) -> Result<Self, SeaErr> {
+    fn from_query_result(res: &QueryResult, pre: &str) -> Result<Self, DbErr> {
         match &res.row {
             #[cfg(feature = "sqlx-mysql")]
             QueryResultRow::SqlxMySql(row) => {
diff --git a/tests/basic.rs b/tests/basic.rs
index dc048863..641fc1aa 100644
--- a/tests/basic.rs
+++ b/tests/basic.rs
@@ -31,7 +31,7 @@ async fn setup_schema(db: &DbConn) {
     println!("Create table cake: {:?}", result);
 }
 
-async fn crud_cake(db: &DbConn) -> Result<(), SeaErr> {
+async fn crud_cake(db: &DbConn) -> Result<(), DbErr> {
     let apple = cake::ActiveModel {
         name: Set("Apple Pie".to_owned()),
         ..Default::default()