Question

我在oracle sql plus中创建一个函数，它将empno作为参数并返回其工资。但它没有被创造出来，我哪里出错了？

这是我的功能：

CREATE FUNCTION GETEMPSALARY (EMPNUMBER IN INTEGER) RETURN INTEGER
IS
EMPSALARY INTEGER;
BEGIN
SELECT SAL INTO EMPSALARY FROM EMP WHERE EMP.EMPNO = EMPNUMBER;
RETURN EMPSALARY;
END GETEMPSALARY;

这是错误：

Error at line 1: PLS-00103: Encountered the symbol "(" when expecting one of the following:

   . @ % ; is authid as cluster order using external character
   deterministic parallel_enable pipelined aggregate
   result_cache


1. CREATE FUNCTION GETNAMES1 (EMPID IN INTEGER) RETURN VARCHAR(20)
2. IS
3. EMPNAME VARCHAR(50);

Answer 1

你错过了/在最后。

CREATE FUNCTION GETEMPSALARY (EMPNUMBER IN INTEGER) RETURN INTEGER
IS
DECLARE
EMPSALARY INTEGER;
BEGIN
SELECT SAL INTO EMPSALARY FROM EMP WHERE EMP.EMPNO = EMPNUMBER;
RETURN EMPSALARY;
END GETEMPSALARY;
/

编辑：由于你的新错误是一个完全不同的功能！

CREATE FUNCTION GETNAMES1 (EMPID IN INTEGER) RETURN VARCHAR(20)

你不应该指定回报的精确度，所以把

 RETURN VARCHAR2

也不要使用VARCHAR，而只使用VARCHAR2

并且语句被忽略;

SQL> CREATE FUNCTION GETEMPSALARY (EMPNUMBER IN INTEGER) RETURN INTEGER
  2  IS
  3  EMPSALARY INTEGER;
  4  BEGIN
  5  SELECT SAL INTO EMPSALARY FROM EMP WHERE EMP.EMPNO = EMPNUMBER;
  6  RETURN EMPSALARY;
  7  END GETEMPSALARY;
  8  /

Warning: Function created with compilation errors.

SQL> show errors
Errors for FUNCTION GETEMPSALARY:

LINE/COL ERROR
-------- -----------------------------------------------------------------
5/1      PL/SQL: SQL Statement ignored
5/32     PL/SQL: ORA-00942: table or view does not exist
SQL>

您看到的后续错误是什么，因为此错误后面应该是真正的错误

在sqlplus中创建函数

1 个答案: