Oracle 中的 "procedure name IS' and a "Procedure name AS" 有什么区别？

Question

PROCEDURE sample (p_num1 IN TABLE%TYPE, p_num2 OUT NUMBER) IS

或

PROCEDURE sample (p_num1 IN TABLE%TYPE, p_num2 OUT NUMBER) AS

Answer 1

只有一个字母的区别：I 与 A。您可以同时使用两者，不会有任何 other 差异。除了存储在数据字典表 [CDB|DBA|ALL|USER]_SOURCE.

中的相同细微差异外，执行两者的效果相同。

SQL> create or replace procedure p_test is begin null; end;
  2  /

Procedure created.

    SQL> create or replace procedure p_test as begin null; end;
      2  /

    Procedure created.

    SQL>

请注意，它不适用于例如观看次数：

SQL> create or replace view v_emp as select * from emp;

View created.

SQL> create or replace view v_emp is select * from emp;
create or replace view v_emp is select * from emp
                             *
ERROR at line 1:
ORA-00905: missing keyword

Oracle 中的 "procedure name IS' and a "Procedure name AS" 有什么区别？

What is the difference between a "procedure name IS' and a "Procedure name AS" in Oracle?

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