常用sql 集合记录整理

select 'truncate table ' + Name + ';' from sysobjects where xtype='U' order by name asc; -- 查询出指定库的 所有表，并且进行 truncate table 操作

select 'select count(*) as ['+Name+'] from ' + Name + ';' from sysobjects where xtype='U' order by name asc;

insert into ynculture.dbo.PLUGINS_DISTRICT(ID, CODE, TITLE,EN_TITLE,CITY_CODE,PARENT_ID,CLASS_LAYER,CLASS_LIST,IMG_URL,PINYIN,SORT,IS_DELETE,ADD_TIME,UPDATE_TIME) select ID, CITY_ID, TITLE,EN_TITLE,CODE,PARENT_ID,CLASS_LAYER,CLASS_LIST,IMG_URL,CITY_PINYIN,SORT,IS_DELETE,GETDATE(),GETDATE() from hyxs.dbo.PLUGINS_DISTRICT; -- 将库2 的表2 的内容插入 库1 的表1 中

insert into dashihui.dbo.PLUGINS_DISTRICT(ID, TITLE,EN_TITLE,CITY_TYPE,CITY_CODE,TEL_CODE,PARENT_CODE,PARENT_ID,ROOT_ID,CLASS_LAYER,CLASS_LIST,IMG_URL,PINYIN,SORT,IS_DELETE,ADD_TIME,UPDATE_TIME,CENTER_LON,CENTER_LAT) select ID, TITLE,EN_TITLE,CITY_TYPE,CITY_CODE,TEL_CODE,PARENT_CODE,PARENT_ID,ROOT_ID,CLASS_LAYER,CLASS_LIST,IMG_URL,PINYIN,SORT,IS_DELETE,GETDATE(),GETDATE(),CENTER_LON,CENTER_LAT from meigongheTravel.dbo.PLUGINS_DISTRICT; 

select * from USERS where USER_NAME in (select USER_NAME from USERS where IS_DELETE=0 group by USER_NAME having COUNT(*)>1) -- 查询某一列值重复 的记录

update dbo.PRODUCT_IMG_LIST set PATH = replace(PATH,'http://www.baidu.com','');  --批量替换某字段中某值

SELECT * FROM [Master].[dbo].[SYSPROCESSES] WHERE [DBID] IN ( SELECT [DBID] FROM [Master].[dbo].[SYSDATABASES] WHERE   NAME='库名称')