diff --git a/taitan-orm/src/database/mysql/database.rs b/taitan-orm/src/database/mysql/database.rs
index ac68670..bc8dd87 100644
--- a/taitan-orm/src/database/mysql/database.rs
+++ b/taitan-orm/src/database/mysql/database.rs
@@ -1,6 +1,6 @@
 use super::transaction::MySqlTransaction;
 
-use sqlx::{MySql, MySqlPool};
+use sqlx::{MySql, MySqlPool, PgPool};
 use taitan_orm_trait::result::Result;
 use taitan_orm_trait::result::CountResult;
 use crate::executors::SqlExecutor;
@@ -21,6 +21,10 @@ impl MySqlDatabase {
     pub fn get_pool(&self) -> Result<&MySqlPool> {
         Ok(&self.pool)
     }
+
+    pub fn from_pool(pool: MySqlPool) -> Self {
+        Self { pool }
+    }
 }
 
 impl SqlGenericExecutor for MySqlDatabase {
diff --git a/taitan-orm/src/database/postgres/database.rs b/taitan-orm/src/database/postgres/database.rs
index e4b05c7..8122845 100644
--- a/taitan-orm/src/database/postgres/database.rs
+++ b/taitan-orm/src/database/postgres/database.rs
@@ -1,11 +1,11 @@
 use super::transaction::PostgresTransaction;
-use taitan_orm_trait::result::CountResult;
 use crate::brave_new_executor_impl;
+use crate::executors::SqlExecutor;
 use crate::executors::SqlGenericExecutor;
 use sqlx::PgPool;
 use sqlx::Postgres;
+use taitan_orm_trait::result::CountResult;
 use taitan_orm_trait::result::Result;
-use crate::executors::SqlExecutor;
 
 #[derive(Debug, Clone)]
 pub struct PostgresDatabase {
@@ -22,6 +22,10 @@ impl PostgresDatabase {
     pub fn get_pool(&self) -> Result<&PgPool> {
         Ok(&self.pool)
     }
+
+    pub fn from_pool(pool: PgPool) -> Self {
+        Self { pool }
+    }
 }
 
 impl SqlGenericExecutor for PostgresDatabase {
@@ -33,7 +37,6 @@ impl SqlGenericExecutor for PostgresDatabase {
     }
 }
 
-
 impl SqlExecutor<Postgres> for PostgresDatabase {
     brave_new_executor_impl!(sqlx::Postgres);
 }
diff --git a/taitan-orm/src/database/sqlite/database.rs b/taitan-orm/src/database/sqlite/database.rs
index 28a94d2..215f8e8 100644
--- a/taitan-orm/src/database/sqlite/database.rs
+++ b/taitan-orm/src/database/sqlite/database.rs
@@ -1,10 +1,10 @@
 use super::transaction::SqliteTransaction;
 use crate::brave_new_executor_impl;
-use taitan_orm_trait::result::CountResult;
 use crate::executors::SqlExecutor;
 use crate::executors::SqlGenericExecutor;
-use sqlx::SqlitePool;
 use sqlx::Sqlite;
+use sqlx::SqlitePool;
+use taitan_orm_trait::result::CountResult;
 use taitan_orm_trait::result::Result;
 
 #[derive(Debug, Clone)]
@@ -22,8 +22,11 @@ impl SqliteDatabase {
     pub fn get_pool(&self) -> Result<&SqlitePool> {
         Ok(&self.sqlite_pool)
     }
-}
 
+    pub fn from_pool(pool: SqlitePool) -> Self {
+        Self { sqlite_pool: pool }
+    }
+}
 
 impl SqlGenericExecutor for SqliteDatabase {
     type DB = Sqlite;
@@ -34,7 +37,6 @@ impl SqlGenericExecutor for SqliteDatabase {
     }
 }
 
-
 impl SqlExecutor<Sqlite> for SqliteDatabase {
     brave_new_executor_impl!(sqlx::Sqlite);
 }