BI SQL # 137 : SQL Server DBA Scripts : Copy data from one database to another
Hi Folks,
In this article we are going to cover How to Copy data from one database to another.
In this post we are going to discuss following points:
- Problem Statement of SQL Script:
- Description of SQL Script:
- SQL Script Code
- SQL Script Output Screenshot
- User Level to execute
Problem Statement of SQL Script:
Copy data from one database to another.
Description of SQL Script:
Here is a script to copy all data from one database to another.
This script copies entire data from one database to another.
This disables all the foreign keys in the target database and copies all data from Source to target and enables all constraints back.
SQL Script Code
EXEC sp_MSforeachtable @command1 = 'ALTER TABLE ? NOCHECK CONSTRAINT ALL' DECLARE @linkedServer SYSNAME = 'TESTSERVER'; DECLARE @SourceDbName SYSNAME = 'AdventureWorksDW'; DECLARE @sql VARCHAR(8000) DECLARE @tableName SYSNAME DECLARE Cur_tab CURSOR FOR SELECT NAME FROM sys.tables t WHERE t.type = 'U'; OPEN cur_tab FETCH NEXT FROM CUR_TAB INTO @tablename; DECLARE @listStr VARCHAR(MAX) WHILE @@FETCH_STATUS = 0 BEGIN SET @listStr = NULL; SELECT @listStr = COALESCE(@listStr + ',', '') + NAME FROM sys.columns WHERE object_id = object_id(@tableName); SET @sql = 'SET IDENTITY_INSERT ' + @TABLENAME + ' ON;INSERT INTO ' + @TABLENAME + '(' + @liststr + ')SELECT ' + @liststr + ' FROM [' + convert(VARCHAR, @linkedServer) + '].[' + convert(VARCHAR, @SourceDbName) + '].[DBO].[' + @tableName + '] ;SET IDENTITY_INSERT ' + @TABLENAME + ' OFF;' PRINT @SQL --EXEC(@SQL) FETCH NEXT FROM CUR_TAB INTO @tablename; END CLOSE CUR_TAB DEALLOCATE CUR_TAB EXEC sp_MSforeachtable @command1 = 'ALTER TABLE ? CHECK CONSTRAINT ALL'
SQL Script Output Screenshot
User Level to execute
- 300
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