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;