Question

考虑表......

TABLE_1
OPTION VARCHAR2 (2),
NAME VARCHAR2 (50),
SQLSOURCE VARCAHR2(400)

TABLE_2
USER_NAME VARCHAR2 (50),
USER_ID NUMBER (10)
DEPT_ID NUMBER (10)

这是更新stmt ..

UPDATE table1 SET OPTION='K',
SQLSOURCE='SELECT DEPT_ID FROM TABLE_2 USER_ID= 15 ORDER BY USER_NAME' 
WHERE NAME='GURU'

它的工作正常，但是我不想在查询中使用硬编码值。

以下查询将替换15 ..

SELECT GROUP_ID FROM TABLE_3 WHERE UPPER(GROUP_NAME)='GROUP1'

所以.. 我试过这样的..

UPDATE table1 SET OPTION='K',
SQLSOURCE='SELECT DEPT_ID FROM TABLE_2 USER_ID='||(SELECT GROUP_ID FROM TABLE_3 WHERE UPPER(GROUP_NAME)='GROUP1')  ORDER BY USER_NAME
WHERE NAME='GURU'

它显示错误..

谁能告诉我这样做的方法???

Answer 1

这可能是你想要的：

UPDATE table_1
   SET "OPTION"  = 'K',
       SQLSOURCE = 'SELECT DEPT_ID FROM TABLE_2 USER_ID=' ||
                   (SELECT GROUP_ID 
                      FROM TABLE_3 
                     WHERE UPPER(GROUP_NAME) = 'GROUP1') ||
                   ' ORDER BY USER_NAME'
 WHERE NAME = 'GURU'

Answer 2

我想你想要：

UPDATE table1 
SET OPTION='K'
,   SQLSOURCE='SELECT DEPT_ID FROM TABLE_2 USER_ID='
           ||(SELECT GROUP_ID FROM TABLE_3 WHERE UPPER(GROUP_NAME)='GROUP1')
           ||' ORDER BY USER_NAME'
WHERE NAME='GURU'

在更新查询中选择查询？

2 个答案: