oracle儲存過程基本語法(轉載)
oracle 儲存過程的基本語法
1.基本結構
CREATE OR REPLACE PROCEDURE 儲存過程名字
(
引數1 IN NUMBER,
引數2 IN NUMBER
) IS
變數1 INTEGER :=0;
變數2 DATE;
BEGIN
END 儲存過程名字
2.SELECT INTO STATEMENT
將select查詢的結果存入到變數中,可以同時將多個列儲存多個變數中,必須有一條
記錄,否則丟擲異常(如果沒有記錄丟擲NO_DATA_FOUND)
例子:
BEGIN
SELECT col1,col2 into 變數1,變數2 FROM typestruct where xxx;
EXCEPTION
WHEN NO_DATA_FOUND THEN
xxxx;
END;
...
3.IF 判斷
IF V_TEST=1 THEN
BEGIN
do something
END;
END IF;
4.while 迴圈
WHILE V_TEST=1 LOOP
BEGIN
XXXX
END;
END LOOP;
5.變數賦值
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.帶引數的cursor
CURSOR C_USER(C_ID NUMBER) IS SELECT NAME FROM USER WHERE TYPEID=C_ID;
OPEN C_USER(變數值);
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
連線資料庫後建立一個Test WINDOW
在視窗輸入呼叫SP的程式碼,F9開始debug,CTRL+N單步除錯