sqlserver学习_01
sqlserver的学习成长之路,每一个技术的学习过程都是值得让人回味的,现在百度上关于sqlser的资料很多,但是都太杂,希望能为大家分享一点简单易懂的干货,跟大家一起进步学习。
一、建表
1、创建表stu_paper(各种常用的类型的字段都有)
IF NOT EXISTS (SELECT * FROM SYSOBJECTS WHERE NAME = 'stu_paper' AND TYPE = 'U') BEGIN --问卷表 CREATE TABLE stu_paper( P_ID int IDENTITY(1,1) primary key NOT NULL, TITLE VARCHAR(200) default '' NOT NULL, START_TIME datetime default getdate() NOT NULL, SHOW_CONTENT int default 0 NOT NULL, USER_NUM bigint default 0 NOT NULL, FLAG int default 0 NOT NULL , NTAG1 numeric(10,4), ) END GO
2、创建表stu
IF NOT EXISTS (SELECT * FROM SYSOBJECTS WHERE NAME = 'stu' AND TYPE = 'U') BEGIN --问卷表 CREATE TABLE stu( P_ID int IDENTITY(1,1) primary key NOT NULL, TITLE VARCHAR(200) default '' NOT NULL, START_TIME datetime default getdate() NOT NULL, SHOW_CONTENT int default 0 NOT NULL, USER_NUM bigint default 0 NOT NULL, FLAG int default 0 NOT NULL , NTAG1 numeric(10,4), ) END GO
二、为表stu_paper增加字段
1 alter table dbo.stu_paper add age int default 0 not null; 2 alter table dbo.stu_paper add name VARCHAR(200) default '' not null;
三、修改表stu_paper中的字段name 的长度为varchar(256)
1 alter table stu_paper alter column name varchar(256);
四、存储过程
1、创建存储过程,将将表stu_paper中数据同步到表stu中
1 CREATE PROC [DBO].[PRO_STUPAPER] 2 AS 3 IF EXISTS(SELECT COUNT(*) FROM DBO.stu_paper) 4 BEGIN 5 DELETE FROM DBO.stu_paper; 6 INSERT INTO DBO.stu(TITLE,START_TIME,SHOW_CONTENT,USER_NUM,FLAG,NTAG1) 7 SELECT TITLE,START_TIME,SHOW_CONTENT,USER_NUM,FLAG,NTAG1 FROM DBO.stu_paper; 8 END 9 GO
2、执行存储过程
1 EXEC DBO.PRO_STUPAPER 2 GO
五、sqlserver定时任务
1、创建定时任务(即作业)
参考网址:https://jingyan.baidu.com/article/b907e62790e89846e7891cc4.html?qq-pf-to=pcqq.c2c
2、查看定时任务日志
参考网址:https://jingyan.baidu.com/article/0f5fb099efaa2c6d8334eae5.html?qq-pf-to=pcqq.c2c