内联 SQL PL(Inline SQL PL)
----start
通常SQL PL只能使用在存储过程、触发器、用户自定义函数中,但是有一部分SQL PL也可以直接在命令行编辑器或脚本中使用,它们是:
DECLARE <variable>
SET
CASE
FOR
GET DIAGNOSTICS
GOTO
IF
RETURN
SIGNAL
WHILE
ITERATE
LEAVE
以下SQL PL不能直接在命令行编辑器或脚本中使用,它们只能在存储过程、触发器、用户自定义函数中使用:
ALLOCATE CURSOR
ASSOCIATE LOCATORS
DECLARE <cursor>
DECLARE ...HANDLER
PREPARE
EXECUTE
EXECUTE IMMEDIATE
LOOP
REPEAT
RESIGNAL
CALL
COMMIT/ROLLBACK
示例:
--连接数据库
CONNECT TO SAMPLE!
--内联SQL PL
BEGIN
DECLARE I INT DEFAULT 1;
DECLARE NUM INT DEFAULT 0;
SET NUM=0;
WHILE I<=10
DO
SET NUM=NUM+I;
SET I=I+1;
END WHILE;
END!
--关闭连接
CONNECT RESET!
调用示例:
将示例的内容保存为c:\test.sql,然后在DB2 命令窗口中执行如下命令
db2 -td! -vf c:\test.sql
----更多参见:SQL PL 简介
----声明:转载请注明出处。
----last updated 2010.2.9
----written by wave at 2010.2.9
----end
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