CREATE OR REPLACE PROCEDURE 是一个SQL语句通知Oracle数据库去创建一个叫做skeleton存储过程, 如果存在就覆盖它; 行2: IS关键词表明后面将跟随一个PL/SQL体。 行3: BEGIN关键词表明PL/SQL体的开始。 行4: NULL PL/SQL语句表明什么事都不做,这句不能删去,因为PL/SQL体中至少需要有一句; 行5: END关键词表明...
if else 单引号的引用:用到单引号的一律两个单引号代替 [sql]view plaincopy 1. USE [a] 2. GO 3. /*** Object: StoredProcedure [a].[Processname] Script Date: 02/24/2011 11:49:55 ***/ 4. SET ANSI_NULLS ON 5. GO 6. SET QUOTED_IDENTIFIER ON 7. GO 8. -- === 9. -- Author...
An IF...ELSE construct can be used in batches, in stored procedures, and in ad hoc queries. When this construct is used in a stored procedure, it's usually to test for the existence of some parameter.IF tests can be nested after another IF or following an ELSE. The limit to the ...
IF..ELSE..在存储过程的使用规范 IF..ELSE..在存储过程的使用规范 分类：ＳＱＬ存储过程 (@city nvarchar(20),@town nvarchar(20),@village nvarchar(20))asdeclare @num numeric(10)declare @yd_num numeric(10)declare @lt_num numeric(10)declare @gh_num numeric(10)declare @xlt_num numeric(10)...
Transact-SQL language reference for IF-ELSE statements to provide control flow in Transact-SQL statements.
DELIMITER // CREATE PROCEDURE CheckCondition(IN input INT) BEGIN IF input > 0 THEN SELECT 'Positive'; ELSE SELECT 'Non-positive'; END IF; END // DELIMITER ; 然后,在C#中调用这个存储过程: 代码语言:txt 复制 using MySql.Data.MySqlClient; using System; class Program { static void Main() {...
IF/ELSE Syntax Error Posted by:a a Date: August 30, 2008 06:55PM Whats wrong in this small procedure? Script line: 4 You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'end if;...
elseif ipmode='绑定' THEN delete from IpBindedInfo where Ip=reip and Mac=remac; delete from StaticIpMacBindInfo where Ip=reip and Mac=remac; update AllResourceIpInfo set State=1 where IpValue=funGetIPValue(reip) and State=4; open zw_switchport; ...
I CANTO USE DE IF CONDITION IN MYSQL SERVER 5.0 Anonymous February 19, 2009 I'm trying to do this in a way that will work on SQL Server and DB2. Unfortunately DB2 is extremely primitive and as soon as you involve 'IF' you are into requiring a procedure, can't just run it in a ...
Is this more efficient than doing an "IF SELECT COUNT(*) FROM ... > 0 ELSE ... " That would select only one value, I'm just not fully sure of the overhead created when SQL Server executes the SELECT in this vs. an UPDATE that makes no changes. I'm not really sure how to ...