1
我想从所有数据库中的所有表中获取数据库名称,模式名称,表名和最大id值。使用下面的查询,我得到DBname,Schema和TableName,但无法弄清楚如何将max(id)值也放入表中。SQL从所有数据库的所有表中获取最大id值
DECLARE @DBName VARCHAR(256)
DECLARE @varSQL VARCHAR(256)
DECLARE @getDBName CURSOR
SET @getDBName = CURSOR FOR SELECT name FROM sys.databases
CREATE TABLE #TmpTable (
DBName VARCHAR(256),
SchemaName VARCHAR(256),
TableName VARCHAR(256)
)
OPEN @getDBName
FETCH NEXT FROM @getDBName INTO @DBName
WHILE @@FETCH_STATUS = 0
BEGIN
SET @varSQL = 'USE ' + @DBName + ';
INSERT INTO #TmpTable
SELECT '''+ @DBName + ''' AS DBName,
SCHEMA_NAME(schema_id) AS SchemaName,
name AS TableName
FROM sys.tables'
EXEC(@varSQL)
FETCH NEXT FROM @getDBName INTO @DBName
END
CLOSE @getDBName
DEALLOCATE @getDBName
SELECT * FROM #TmpTable
DROP TABLE #TmpTable
你假设所有表具有相同的键字段的名字吗? – asmgx
是的,id是字段名称 –