SQL替换指定列字符串
-- ================================================
-- Template generated from Template Explorer using:
-- Create Procedure (New Menu).SQL
--
-- Use the Specify Values for Template Parameters
-- command (Ctrl-Shift-M) to fill in the parameter
-- values below.
--
-- This block of comments will not be included in
-- the definition of the procedure.
-- ================================================
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
-- =============================================
-- Author: <Author,,Name>
-- Create date: <Create Date,,>
-- Description: <Description,,>
-- =============================================
CREATE PROCEDURE replaceStr
-- Add the parameters for the stored procedure here
@keywords varchar(max),@afterwords varchar(max)
AS
BEGIN
-- SET NOCOUNT ON added to prevent extra result sets from
-- interfering with SELECT statements.
SET NOCOUNT ON;
declare @word varchar(max);
declare @rowcount int;
declare @count int;
set @count = 1;
-- Insert statements for procedure here
begin try
begin tran replaceStr
select @rowcount = count(*) from Logfile;
while @count <= @rowcount
begin
select @word = lcontent from Logfile where lid = @count; --lcontent列名,Logfile表名,lid自增长主键
update Logfile set lcontent = replace(@word,@keywords,@afterwords) where lid = @count;
set @count = @count + 1;
end
commit tran
end try
begin catch
rollback tran
end catch
END
GO
相关文档:
说到软解析(soft prase)和硬解析(hard prase),就不能不说一下Oracle对sql的处理过程。当你发出一条sql语句交付Oracle,在执行和获取结果前,Oracle对此sql将进行几个步骤的处理过程:
1、语法检查(syntax check)
检查此sql的拼写是否语 ......
---//创建分区
CREATE PARTITION FUNCTION MarketInfo_Bak_partfunc(int)
AS RANGE RIGHT
FOR VALUES (10000,25000,40000)
--//创建分区架构
CREATE PARTITION SCHEME MarketInfo_Bak_partscheme
AS PARTITION MarketInfo_Bak_partfunc
TO (fg1, fg2, fg3, fg4) --//fg1...fg4文件组名
--//对表进 ......
第一种:
public void deleteUser(String byemail) {
Session session = getSession();
Transaction transaction = null;
String hql = "delete from Register where email=?
";
try {
transaction = session.beginTransactio ......
一.注释
-- 单行注释,从这到本行结束为注释sql 语法,类似C++,c#中//
/* … */ 多行注释,类似C++,C#中/* … */
二.变量(int, smallint, tinyint, decimal,float,real, money ,smallmoneysql 语法, text ,image, char, varchar。。。。。。)
语法:
DECLARE
&nb ......