如果v_qstns_to_delete
是一個varchar,你需要它有點轉換讓Oracle瞭解,有可能是它的幾個項目。一種方法是將字符串轉換爲項目表。
假設qstn_id
是一個數列,你會:
SQL> SELECT * FROM TABLE(to_tab_number('24, 43, 23, 44, 21'));
COLUMN_VALUE
------------
24
43
23
44
21
要做到在列表的變量:
SQL> CREATE TYPE tab_number AS TABLE OF NUMBER;
2/
Type created
SQL> CREATE OR REPLACE FUNCTION to_tab_number(p_in VARCHAR2,
2 p_separator VARCHAR2 DEFAULT ',')
3 RETURN tab_number AS
4 l_result tab_number := tab_number();
5 l_tail LONG := p_in;
6 BEGIN
7 WHILE l_tail IS NOT NULL LOOP
8 l_result.EXTEND;
9 IF instr(l_tail, p_separator) != 0 THEN
10 l_result(l_result.COUNT) := to_number(substr(l_tail,
11 1,
12 instr(l_tail, p_separator) - 1));
13 l_tail := substr(l_tail, instr(l_tail, p_separator) + 1);
14 ELSE
15 l_result(l_result.COUNT) := to_number(l_tail);
16 l_tail := NULL;
17 END IF;
18 END LOOP;
19 RETURN l_result;
20 END;
21/
Function created
然後,您可以字符串從SQL轉換成數的表:
SQL> SELECT object_id, owner
2 FROM all_objects
3 WHERE object_id IN (SELECT column_value FROM TABLE(to_tab_number('18,19,20')));
OBJECT_ID OWNER
---------- ------------------------------
18 SYS
19 SYS
20 SYS
更多關於askTom同一主題。