Shrink SQL Server 2008 Database + Log File Script
Use DatabaseName
--DB shrink
--获取database 空余空间, 决定是否作shrinkDB
exec [DBNAME].dbo.sp_spaceused
DBCC ShrinkDB(DBNAME)
--Log file shrink
Use DatabaseName
GO
Alter Database DatabaseName Set Recovery Simple
GO
Alter Database DatabaseName Set Recovery Full
GO
DBCC SHRINKFILE ('LogFileName', 1)
GO
DBCC SHRINKFILE ('LogFileName', 1)
GO
DBCC SHRINKFILE ('LogFileName', 1)
GO
DBCC SHRINKFILE ('LogFileName', 1)
GO
DBCC SHRINKFILE ('LogFileName', 1)
GO
DBCC SHRINKFILE ('LogFileName', 1)
GO
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--1.关于where筛选器中出现指定星期几的求解
SQL code
--环境
create table test_1
(
id int,
value varchar(10),
t_time datetime
)
insert test_1
select 1,'a','2009-04-19' union
select 2,'b','2009-04-20' union
select 3,'c','2009-04-21' union
select 4,'d','2009-04-22' union
s ......
merge [target] t
using [source] s on t.id = s.id
when matched then update t.name = s.name, t.age = s.age -- use "rowset1"
when not matched then insert values(id,name,age) -- use "rowset2"
when source not matched then delete; -- use "rowset3"
MERGE dbo.table AS im ......
使用 CONVERT:
CONVERT (data_type[(length)], expression [, style])
select CONVERT(varchar, getdate(), 120 )
2004-09-12 11:06:08
select replace(replace(replace(CONVERT(varchar, getdate(), 120 ),\'-\',\'\'),\' \',\'\'),\':\',\'\')
20040912110608
select CONVERT(varchar(12) , getdate(), 111 ) ......
CONVERT
将某种数据类型的表达式显式转换为另一种数据类型。由于某些需求经常用到取日期格式的不同.现以下可在
SQL Server中 将日期格式化.
SQL Server 支持使用科威特算法的阿拉伯样式中的数据格式。
在表中,左侧的两列表示将 datetime 或 smalldatetime 转换为字符数据的 style 值。给 style 值加 100,可获得包 ......