15000 字的 SQL 语句大全

CREATE DATABASE database-name

drop database dbname

--- 创建 备份数据的 device
USE master
EXEC sp_addumpdevice 'disk', 'testBack', 'c:\mssql7backup\MyNwind_1.dat'
--- 开始 备份
BACKUP DATABASE pubs TO testBack 

create table tabname(col1 type1 [not null] [primary key],col2 type2 [not null],..)

create table tab_new like tab_old (使用旧表创建新表)

create table tab_new as select col1,col2… from tab_old definition only

drop table tabname

Alter table tabname add column col type

Alter table tabname add primary key(col) 

Alter table tabname drop primary key(col)

create [unique] index idxname on tabname(col….) 

drop index idxname

create view viewname as select statement

drop view viewname

select * from table1 where 范围

insert into table1(field1,field2) values(value1,value2)

delete from table1 where 范围

update table1 set field1=value1 where 范围

select * from table1 where field1 like ’%value1%’ ---like的语法很精妙，查资料!

select * from table1 order by field1,field2 [desc]

select count as totalcount from table1

select sum(field1) as sumvalue from table1

select avg(field1) as avgvalue from table1

select max(field1) as maxvalue from table1

select min(field1) as minvalue from table1

select a.a, a.b, a.c, b.c, b.d, b.f from a LEFT OUT JOIN b ON a.a = b.c

sp_renamedb 'old_name', 'new_name'

select * into b from a where 1<>1 --（仅用于SQlServer）

select top 0 * into b from a

insert into b(a, b, c) select d,e,f from b;

nsert into b(a, b, c) select d,e,f from b in ‘具体数据库’ where 条件

select a,b,c from a where a IN (select d from b ) 或者: select a,b,c from a where a IN (1,2,3)

select a.title,a.username,b.adddate from table a,(select max(adddate) adddate from table where table.title=a.title) b

select a.a, a.b, a.c, b.c, b.d, b.f from a LEFT OUT JOIN b ON a.a = b.c

select * from (SELECT a,b,c FROM a) T where t.a > 1

select * from table1 where time between time1 and time2

select a,b,c, from table1 where a not between 数值1 and 数值2

select * from table1 where a [not] in (‘值1’,’值2’,’值4’,’值6’)

delete from table1 where not exists ( select * from table2 where table1.field1=table2.field1 )

select * from a left inner join b on a.a=b.b right inner join c on a.a=c.c inner join d on a.a=d.d where .....

select * from 日程安排 where datediff('minute',f开始时间,getdate())>5

select top 10 b.* from (select top 20 主键字段,排序字段 from 表名 order by 排序字段 desc) a,表名 b where b.主键字段 = a.主键字段 order by a.排序字段

 declare @start int,@end int

  @sql  nvarchar(600)

  set @sql=’select top’+str(@end-@start+1)+’+from T where rid not in(select top’+str(@str-1)+’Rid from T where Rid>-1)’

  exec sp_executesql @sql

select top 10 * form table1 where 范围

select a,b,c from tablename ta where a=(select max(a) from tablename tb where tb.b=ta.b)

(select a from tableA ) except (select a from tableB) except (select a from tableC)

select top 10 * from tablename order by newid()

select newid()

delete from tablename where id not in (select max(id) from tablename group by col1,col2,...)

select distinct * into temp from tablename
  delete from tablename
  insert into tablename select * from temp

alter table tablename
--添加一个自增列
add  column_b int identity(1,1)
 delete from tablename where column_b not in(
select max(column_b)  from tablename group by column1,column2,...)
alter table tablename drop column column_b

select name from sysobjects where type='U' // U代表用户

select name from syscolumns where id=object_id('TableName')

select type,sum(case vender when 'A' then pcs else 0 end),sum(case vender when 'C' then pcs else 0 end),sum(case vender when 'B' then pcs else 0 end) FROM tablename group by type

TRUNCATE TABLE table1

select top 5 * from (select top 15 * from table order by id asc) table_别名 order by id desc

if @strWhere !='' 
begin
set @strSQL = 'select count(*) as Total from [' + @tblName + '] where ' + @strWhere 
end
else 
begin
set @strSQL = 'select count(*) as Total from [' + @tblName + ']' 
end

set @strSQL = 'select count(*) as Total from [' + @tblName + '] where 1=1 安定 '+ @strWhere

--重建索引
DBCC REINDEX
DBCC INDEXDEFRAG
--收缩数据和日志
DBCC SHRINKDB
DBCC SHRINKFILE

dbcc shrinkdatabase(dbname)

exec sp_change_users_login 'update_one','newname','oldname'
go

RESTORE VERIFYONLY from disk='E:\dvbbs.bak'

ALTER DATABASE [dvbbs] SET SINGLE_USER
GO
DBCC CHECKDB('dvbbs',repair_allow_data_loss) WITH TABLOCK
GO
ALTER DATABASE [dvbbs] SET MULTI_USER
GO

SET NOCOUNT ON
DECLARE @LogicalFileName sysname,
 @MaxMinutes INT,
 @NewSize INT


USE tablename -- 要操作的数据库名
SELECT  @LogicalFileName = 'tablename_log', -- 日志文件名
@MaxMinutes = 10, -- Limit on time allowed to wrap log.
 @NewSize = 1  -- 你想设定的日志文件的大小(M)

Setup / initialize
DECLARE @OriginalSize int
SELECT @OriginalSize = size 
 FROM sysfiles
 WHERE name = @LogicalFileName
SELECT 'Original Size of ' + db_name() + ' LOG is ' + 
 CONVERT(VARCHAR(30),@OriginalSize) + ' 8K pages or ' + 
 CONVERT(VARCHAR(30),(@OriginalSize*8/1024)) + 'MB'
 FROM sysfiles
 WHERE name = @LogicalFileName
CREATE TABLE DummyTrans
 (DummyColumn char (8000) not null)


DECLARE @Counter    INT,
 @StartTime DATETIME,
 @TruncLog   VARCHAR(255)
SELECT @StartTime = GETDATE(),
 @TruncLog = 'BACKUP LOG ' + db_name() + ' WITH TRUNCATE_ONLY'

DBCC SHRINKFILE (@LogicalFileName, @NewSize)
EXEC (@TruncLog)
-- Wrap the log if necessary.
WHILE @MaxMinutes > DATEDIFF (mi, @StartTime, GETDATE()) -- time has not expired
 AND @OriginalSize = (SELECT size FROM sysfiles WHERE name = @LogicalFileName)  
 AND (@OriginalSize * 8 /1024) > @NewSize  
 BEGIN -- Outer loop.
SELECT @Counter = 0
 WHILE   ((@Counter < @OriginalSize / 16) AND (@Counter < 50000))
 BEGIN -- update
 INSERT DummyTrans VALUES ('Fill Log') DELETE DummyTrans
 SELECT @Counter = @Counter + 1
 END
 EXEC (@TruncLog)  
 END
SELECT 'Final Size of ' + db_name() + ' LOG is ' +
 CONVERT(VARCHAR(30),size) + ' 8K pages or ' + 
 CONVERT(VARCHAR(30),(size*8/1024)) + 'MB'
 FROM sysfiles 
 WHERE name = @LogicalFileName
DROP TABLE DummyTrans
SET NOCOUNT OFF

exec sp_changeobjectowner 'tablename','dbo'

CREATE PROCEDURE dbo.User_ChangeObjectOwnerBatch
@OldOwner as NVARCHAR(128),
@NewOwner as NVARCHAR(128)
AS

DECLARE @Name    as NVARCHAR(128)
DECLARE @Owner   as NVARCHAR(128)
DECLARE @OwnerName   as NVARCHAR(128)

DECLARE curObject CURSOR FOR 
select 'Name'    = name,
   'Owner'    = user_name(uid)
from sysobjects
where user_name(uid)=@OldOwner
order by name

OPEN   curObject
FETCH NEXT FROM curObject INTO @Name, @Owner
WHILE(@@FETCH_STATUS=0)
BEGIN     
if @Owner=@OldOwner 
begin
   set @OwnerName = @OldOwner + '.' + rtrim(@Name)
   exec sp_changeobjectowner @OwnerName, @NewOwner
end
-- select @name,@NewOwner,@OldOwner

FETCH NEXT FROM curObject INTO @Name, @Owner
END

close curObject
deallocate curObject
GO


10、SQL SERVER中直接循环写入数据
declare @i int
set @i=1
while @i<30
begin
    insert into test (userid) values(@i)
    set @i=@i+1
end

while((select min(score) from tb_table)<60)

begin

update tb_table set score =score*1.01

where score<60

if  (select min(score) from tb_table)>60

  break

 else

    continue

end

Select * From TableName Order By CustomerName Collate Chinese_PRC_Stroke_ci_as //从少到多

select encrypt('原始密码')
select pwdencrypt('原始密码')
select pwdcompare('原始密码','加密后密码') = 1--相同；否则不相同 encrypt('原始密码')
select pwdencrypt('原始密码')
select pwdcompare('原始密码','加密后密码') = 1--相同；否则不相同

declare @list varchar(1000),
@sql nvarchar(1000) 
select @list=@list+','+b.name from sysobjects a,syscolumns b where a.id=b.id and a.name='表A'
set @sql='select '+right(@list,len(@list)-1)+' from 表A' 
exec (@sql)