欢迎您访问程序员文章站本站旨在为大家提供分享程序员计算机编程知识!
您现在的位置是: 首页  >  数据库

结构相同的数据库之间复制数据

程序员文章站 2022-04-12 10:24:56
...

结构相同的数据库之间复制数据 无 use oldgoDECLARE NoCheckConstraintAll CURSOR READ_ONLY FOR SELECT sst.name, Schema_name(sst.schema_id) FROM sys.tables sst WHERE sst.TYPE = 'U' DECLARE @name VARCHAR(80), @schema VARCHAR(40)OPEN NoCheckConstr

结构相同的数据库之间复制数据
use old
go
DECLARE NoCheckConstraintAll CURSOR READ_ONLY FOR 
  SELECT sst.name, 
         Schema_name(sst.schema_id) 
  FROM   sys.tables sst 
  WHERE  sst.TYPE = 'U' 
DECLARE @name   VARCHAR(80), 
        @schema VARCHAR(40)

OPEN NoCheckConstraintAll

FETCH NEXT FROM NoCheckConstraintAll INTO @name, @schema

WHILE ( @@FETCH_STATUS  -1 ) 
  BEGIN 
      IF ( @@FETCH_STATUS  -2 ) 
        BEGIN 
                DECLARE @sql NVARCHAR(1024) 
SET @sql=' ALTER TABLE ' + Quotename(@schema) 
                           + 
                           '.' + Quotename(@name)+' NOCHECK CONSTRAINT ALL'
                  EXEC Sp_executesql @sql 
        END

      FETCH NEXT FROM NoCheckConstraintAll INTO @name, @schema 
  END

CLOSE NoCheckConstraintAll

DEALLOCATE NoCheckConstraintAll

GO

DECLARE CopyTables CURSOR READ_ONLY FOR 
  SELECT sst.name, 
         Schema_name(sst.schema_id) 
  FROM   sys.tables sst 
  WHERE  sst.TYPE = 'U' 
DECLARE @name   VARCHAR(80), 
        @schema VARCHAR(40)

OPEN CopyTables

FETCH NEXT FROM CopyTables INTO @name, @schema

WHILE ( @@FETCH_STATUS  -1 ) 
  BEGIN 
      IF ( @@FETCH_STATUS  -2 ) 
        BEGIN 
                DECLARE @sql NVARCHAR(1024) 
SET @sql='INSERT INTO [new].' + Quotename(@schema) 
                           + 
                           '.' + Quotename(@name)+' SELECT * FROM '+ Quotename(@schema) 
                           + 
                           '.' + Quotename(@name)
                  EXEC Sp_executesql @sql 
        END

      FETCH NEXT FROM CopyTables INTO @name, @schema 
  END

CLOSE CopyTables

DEALLOCATE CopyTables

GO
DECLARE CheckConstraintAll CURSOR READ_ONLY FOR 
  SELECT sst.name, 
         Schema_name(sst.schema_id) 
  FROM   sys.tables sst 
  WHERE  sst.TYPE = 'U' 
DECLARE @name   VARCHAR(80), 
        @schema VARCHAR(40)

OPEN CheckConstraintAll

FETCH NEXT FROM CheckConstraintAll INTO @name, @schema

WHILE ( @@FETCH_STATUS  -1 ) 
  BEGIN 
      IF ( @@FETCH_STATUS  -2 ) 
        BEGIN 
                DECLARE @sql NVARCHAR(1024) 
SET @sql=' ALTER TABLE ' + Quotename(@schema) 
                           + 
                           '.' + Quotename(@name)+' CHECK CONSTRAINT ALL'
                  EXEC Sp_executesql @sql 
        END

      FETCH NEXT FROM CheckConstraintAll INTO @name, @schema 
  END

CLOSE CheckConstraintAll

DEALLOCATE CheckConstraintAll

GO