Question

我想将表OS_CW.CW_FELDDATEN属性的PRIMITIVUMNUMMER（非空数字（38））与本地数组v_list_pNummber中的值进行比较。这就是我到目前为止所做的：

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栏：
  PLS-00382：表达式类型错误   06550. 00000 - ＆＃34;行％s，列％s：\ n％s＆＃34;
  *原因：通常是PL / SQL编译错误   *行动：

如何将列（数字）与表格NUMBER INDEX BY BINARY_INTEGER进行比较？

谢谢！

Answer 1

SQL不能使用在本地PL / SQL范围内声明的类型。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。它的输入较少，但如果CW_FELDDATEN有很多行，则可能无法像TABLE（）运算符那样运行。

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。

Answer 2

您需要使用MEMBER OF子句在SQL语句中构建inlist。另请注意，无法在匿名块中创建类型，并在子句中的SQL语句中使用它，就像您所做的那样。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;

在此处查看更多信息： http://www.oracle-developer.net/display.php?id=301

如何在SELECT INTO Statment中使用数字表

2 个答案: