内容发布更新时间 : 2024/11/17 3:42:18星期一 下面是文章的全部内容请认真阅读。

1.基本结构

create OR REPLACE PROCEDURE存储过程名字 (

参数1 IN NUMBER, 参数2 IN NUMBER ) IS

变量1 INTEGER :=0; 变量2 DATE; BEGIN

END 存储过程名字

2.select INTO STATEMENT

将select查询的结果存入到变量中，可以同时将多个列存储多个变量中，必须有一条记录，否则抛出异常(如果没有记录抛出NO_DATA_FOUND) 例子： BEGIN

select col1,col2 into 变量1,变量2 FROM typestruct where xxx; EXCEPTION

WHEN NO_DATA_FOUND THEN xxxx; END; ...

3.IF 判断

IF V_TEST=1 THEN BEGIN

do something END; END IF; 4.while 循环

WHILE V_TEST=1 LOOP BEGIN XXXX END;

END LOOP; 5.变量赋值 V_TEST := 123;

6.用for in 使用cursor ... IS

CURSOR cur IS select * FROM xxx; BEGIN

FOR cur_result in cur LOOP BEGIN

V_SUM :=cur_result.列名1+cur_result.列名2 END;

END LOOP; END;

7.带参数的cursor

CURSOR C_USER(C_ID NUMBER) IS select NAME FROM USER where TYPEID=C_ID; OPEN C_USER(变量值); LOOP

FETCH C_USER INTO V_NAME; EXIT FETCH C_USER%NOTFOUND; do something END LOOP;

CLOSE C_USER;

8.用pl/sql developer debug

连接数据库后建立一个Test WINDOW

在窗口输入调用SP的代码,F9开始debug,CTRL+N单步调试

Compilation errors for PROCEDURE SYSTEM.ADD_STU

Error: PL/SQL: ORA-00936: 缺失表达式 Line: 12

Text: select into p_data from stu where cid = p_sid

Error: PL/SQL: SQL Statement ignored Line: 12

Text: select into p_data from stu where cid = p_sid

Error: PLS-00103: 出现符号 \在需要下列之一时： begin case declare

end exception exit for goto if loop mod null pragma raise return select update while with

<< close current delete fetch lock insert open rollback savepoint set sql execute commit forall merge pipe Line: 15

Text: end add_stu;