我想将表 OS_CW.CW_FELDDATEN 属性的 PRIMITIVUMNUMMER (NOT NULL NUMBER(38)) 与本地数组
v_list_pNummber
中的值进行比较。这是我到目前为止所拥有的:
DECLARE
TYPE array_of_numbers IS TABLE OF NUMBER INDEX BY BINARY_INTEGER;
v_list_parentID array_of_numbers;
v_list_pNummer array_of_numbers;
BEGIN
SELECT DBUID BULK COLLECT INTO v_list_parentID
FROM OS_SYS.V_CATALOG
WHERE PARENTID = 1;
SELECT PRIMITIVUMNUMMER BULK COLLECT INTO v_list_pNummer
FROM OS_CW.CW_FELDDATEN
WHERE KATALOG IN (v_list_parentID);
END;
运行上面的代码时出现此错误:
错误报告-
ORA-06550: 第 28 行,第 104 列:
PLS-00382:表达式类型错误
06550. 00000 - “第 %s 行,第 %s 列: %s”
*原因:通常是 PL/SQL 编译错误。
*行动:
如何将列(数字)与表 NUMBER INDEX BY BINARY_INTEGER 进行比较?
谢谢!
SQL 不能使用本地 PL/SQL 范围中声明的类型。您需要在 SQL 中定义它(*):
SQL> create TYPE array_of_numbers IS TABLE OF NUMBER ;
2 /
Type created.
SQL>
然后使用 TABLE() 运算符将第一个集合转换为可以使用 IN 运算符引用的子查询:
SQL> set serveroutput on
SQL> declare
2 v_list_parentID array_of_numbers;
3 v_list_pNummer array_of_numbers;
4 begin
5 select dbuid bulk collect into v_list_parentID
6 from v_catalog
7 where parentid = 1;
8 dbms_output.put_line('v_list_parentID count = ' || v_list_parentID.count());
9
10 select primitivumnummer bulk collect into v_list_pNummer
11 from cw_felddaten
12 where katalog in (select * from table( v_list_parentID));
13
14 dbms_output.put_line('v_list_pNummer count = ' || v_list_pNummer.count());
15 end;
16 /
v_list_parentID count = 4
v_list_pNummer count = 24
PL/SQL procedure successfully completed.
SQL>
MEMBER OF 语法也有效。它的输入量较少,但如果 CW_FELDDATEN 有很多行,则性能可能不如 TABLE() 运算符。
SQL> declare
2 v_list_parentID array_of_numbers;
3 v_list_pNummer array_of_numbers;
4 begin
5 select dbuid bulk collect into v_list_parentID
6 from v_catalog
7 where parent_id = 1;
8 dbms_output.put_line('v_list_parentID count = ' || v_list_parentID.count());
9
10 select primitivumnummer bulk collect into v_list_pnummer
11 from cw_felddaten
12 where katalog member of v_list_parentID;
13
14 dbms_output.put_line('v_list_pNummer count = ' || v_list_pNummer.count());
15 end;
16 /
v_list_parentID count = 4
v_list_pNummer count = 24
PL/SQL procedure successfully completed.
SQL>
(*) 在 12c 中,我们可以使用 SQL 中的包规范中声明的类型。
您需要使用
MEMBER OF
子句在 SQL 语句中构建 inlist
。另请注意,不可能像您所做的那样在匿名块中创建类型并在 SQL 语句 in 子句中使用它。您必须在 PLSQL 块之外声明类型,然后使用它:
CREATE OR REPLACE TYPE array_of_numbers IS TABLE OF NUMBER ;
/
DECLARE
v_list_parentID array_of_numbers;
v_list_pNummer array_of_numbers;
BEGIN
SELECT DBUID
BULK COLLECT INTO v_list_parentID
FROM OS_SYS.V_CATALOG
WHERE PARENTID = 1;
SELECT PRIMITIVUMNUMMER
BULK COLLECT INTO v_list_pNummer
FROM OS_CW.CW_FELDDATEN
WHERE KATALOG MEMBER OF v_list_parentID;
END;
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好人,感谢@APC 和@XING