我通过Oracle19c尝试了这个sql。这是个错误。(ORA-00904:"A":无效标识符)为什么是?SELECT a FROM t1SELECT b FROM t2SELECT c FROM t3此sql工作正常。SELECT a FROM t1SELECT b FROM t2SELECT a FROM t1SELECT b FROM t
+' ) UNION';
EXEC('DBCC CHECKIDENT ('+@TblName+',RESEED,(SELECT IDENT_SEED('+@TblName- Close and Clean Up the CursorDEALLOCATE TBL_CURSOR
-- Since we were adding the UNIONat the end of each part, the last query will h
我在两个表中使用了union函数。除一列外,两个表完全相同。x.InventoryTransTempIDFROM ( FROM InventoryTransTemp
FROM InventoryTrans唯一不同的列是标识列。是否有任何方法通知sql server,如果列名为InventoryTrans,则将其重命名为InventoryTransTem
我有两个表的联合,这些表没有列类型,但我需要返回表名(或类似的标识),这样我就可以在我的代码中知道它来自哪个表。我使用的是Microsoft SQL Server2008 R2。这是我当前的SQL,它还没有返回类型。select Id, Name, CHAR(0) as Type union all from
作为一名软件开发人员,我是一名实习生。我有一个问题:如何使用select和join访问多个表?logs_0215时间戳表的名称类似于:timestamp_0315
我的查询只适用于一个表,如下所示:
SELECT a.id, b.stamp, c.name AS portal, d.name AS company, e.name AS protocol, a