Question

我有一个函数，它将table_name作为输入并返回一个数字。该函数被正确编译但由于某些原因，当我尝试测试该函数时，它会抛出错误 - 缺少关键字。

CREATE OR replace FUNCTION TEST_FUNCTION (name_table IN VARCHAR2) RETURN NUMBER

        IS         

          rday NUMBER;                
  BEGIN 

  execute immediate 
  'select day_i into rday
                FROM ' || name_table || '
                WHERE day_i = 1 and rownum = 1';

   return rday;

  END TEST_FUNCTION;

我正在测试它Select TEST_FUNCTION ('FDR_REP') from dual;

Answer 1

对于into子句，execute immediate的语法不同尝试

CREATE OR replace FUNCTION TEST_FUNCTION (name_table IN VARCHAR2) RETURN NUMBER

        IS         

          rday NUMBER;                
  BEGIN 
   execute immediate  'select day_i 
                FROM ' || name_table || '
                WHERE day_i = 1 and rownum = 1' into rday;


   return rday;

  END TEST_FUNCTION;

以Table_name作为输入的函数，并在Oracle中返回一个数字

1 个答案: