尝试将项目分配给嵌套 table 导致 PLS-00382：表达式类型错误。 PLSQL

Question

我已经创建了嵌套 table，我想为它们分配项目。但是当我尝试这样做时我得到一个错误

Error at line 27, 28: PLS-00382: expression is of wrong type

而27、28行是用赋值的。我声明了几个参数：

DECLARE
    clubIdFirst NUMBER;
    clubIdSecond NUMBER;

    TYPE clubsIdsArray IS TABLE OF NUMBER;
    nestedclubsIdsArray clubsIdsArray:=clubsIdsArray()

BEGIN
   //assign values to clubIdFirst and clubIdSecond trying assign them to table
   nestedclubsIdsArray .EXTEND(2);
   nestedclubsIdsArray := clubIdFirst;
   nestedclubsIdsArray := clubIdSecond;

为什么会这样？

Answer 1

您忘记说明要将值赋给哪个元素（请参阅第 11 和 12 行），例如：

SQL> DECLARE
  2      clubIdFirst NUMBER;
  3      clubIdSecond NUMBER;
  4
  5      TYPE clubsIdsArray IS TABLE OF NUMBER;
  6      nestedclubsIdsArray clubsIdsArray:=clubsIdsArray();
  7
  8  BEGIN
  9     --assign values to clubIdFirst and clubIdSecond trying assign them to table
 10     nestedclubsIdsArray .EXTEND(2);
 11     nestedclubsIdsArray (1):= clubIdFirst;
 12     nestedclubsIdsArray (2):= clubIdSecond;
 13  end;
 14  /

PL/SQL procedure successfully completed.

SQL>

尝试将项目分配给嵌套 table 导致 PLS-00382：表达式类型错误。 PLSQL

Attempt to assign item to nested table cause PLS-00382: expression is of wrong type. PLSQL

oracle

plsql