数据库所有表替换所有列的特定字符串

DECLARE @TableName VARCHAR(119)
DECLARE @TableID INT
DECLARE @ColName VARCHAR(111)
DECLARE Table_Cursor CURSOR FOR SELECT [name],id FROM sysobjects WHERE xtype='U';
OPEN Table_Cursor;
FETCH NEXT FROM Table_Cursor INTO @TableName,@TableID;
WHILE(@@FETCH_STATUS=0)
BEGIN
        DECLARE Columns_Cursor CURSOR FOR select [name] from [syscolumns] where [id] = @TableID
        OPEN Columns_Cursor;
        FETCH NEXT FROM Columns_Cursor INTO @ColName;
        WHILE(@@FETCH_STATUS=0)
        BEGIN

            EXEC('UPDATE '+@TableName+' SET '+@ColName+'=replace('+@ColName+',''lijinsm.cn'',''sdgow.cn'')');
            EXEC('UPDATE '+@TableName+' SET '+@ColName+'=replace('+@ColName+',''400-111-1111'',''400-888-8888'')');
                    
            FETCH NEXT FROM   Columns_Cursor INTO @ColName;
        END
        CLOSE Columns_Cursor;
        DEALLOCATE Columns_Cursor;
FETCH NEXT FROM   Table_Cursor INTO @TableName,@TableID;
END
CLOSE Table_Cursor;
DEALLOCATE Table_Cursor;