Oracle存储过程语法

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;

if ... then
...   
elsif ... then
...   

else
...   
end if;   
    

or     
if ... then     
　　...   
else
...   
end if;   
    
or     
if ... then
...   
end if;

 

4.while 循环
WHILE V_TEST=1 LOOP
BEGIN
XXXX
END;
END LOOP;

5.for循环

FOR v_index IN 1 .. v_count LOOP
     begin

    end;           

END LOOP;

6.变量赋值
V_TEST := 123;

7.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;

declare
      cursor qj_shr_cur is select shrid from t_qj_shr where yhid=kd_user_id;
      begin
      for v_shrid in qj_shr_cur LOOP
          v_shrmc_str := get_yhmc(v_shrid.shrid)||','|| v_shrmc_str;
      end LOOP;    
      end;

8.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;