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Server存款和储蓄进程参数及例子,Server运营时自

在查询中实践下列语句 EXEC sp_attach_single_file_db @dbname = 'tggov_Data', @physname = 'E:tggov_Data' 'tggov_Data' 为复原的数据库名 'E:tggov_Datatggov_Data.MDF' 物理文件地方

sql Server提供了系统存储进程sp_procoption,这么些蕴藏进度能够用来当SQL Server服务运维时指派贰个大概五个存款和储蓄进度自动试行。那是一个很准确的取舍,它能够用来五种各类的用处。比如,你可能在你的数据库中有开荒十分大的询问,那些查询在第一回实践时会费用一些小时。通过运用sp_procoption,你能够在服务器运转时运营这几个查询以此来预先编写翻译施行布署,因而,你的某部顾客就不会成为第叁个运维这些奇特查询的背运的人。笔者早已用那几个成效创设了一个自个儿要好写的大概深入分析器服务器端追踪的机动实施功效,这几个追踪效率成为服务器运营时被设置成自动实践的囤积进程的一有的。复制代码 代码如下:sp_procoption Parameters exec sp_procoption @ProcName = ['stored procedure name'], @OptionName = 'STARTUP', @OptionValue = [on|off]以下是sp_procoption存款和储蓄进度参数的解说: l 参数@ProcName的情趣是远近盛名的,它是被标识成都电子通信工程高校动奉行的进度的名号。 l 参数@OptionName是可选取项,独一有效的挑肥拣瘦是STARTUP。 l 参数@OptionValue切换自动履行的开与关。 使用有一定节制的sp_procoption: l 你不得不以系统管理员的身份登陆服务器并运用sp_procoption。 l 你不能不指使标准存款和储蓄进度、扩充存款和储蓄进程只怕CLLacrosse存款和储蓄进度来运行。 l 存款和储蓄进度必需在基本数据库上。 l 存款和储蓄进程不可能供给此外输入参数或许重回任何输出参数。 在上面包车型大巴例子中,作者创立八个囤积进度,每一遍运维笔者的SQL Server实例时,这么些蕴藏进度就活动施行。这些蕴藏进度的目标是在笔录服务运维时间的数据库表中写一行。通过那张数据库表,我产生三个收获服务器常规运维时刻的主见。以下的脚本成立了贰个新的数据库,这么些数据仓库储存款和储蓄了一张叫做SE凯雷德VEKuga_STARTUP_LOG的公制表。那张表保留了上次服务器运转的日子和时间。一旦成立了那些基本的结构,作者就创设存款和储蓄进度,在服务器运行时,那个蕴藏进度将用来把日子和岁月插入到表中。注意,存款和储蓄进程是在主导数据库上创建的。 12阅读全文

复制代码 代码如下:------------------------------------ --用处:分页存款和储蓄进程(对有主键的表功效相当的高卡塔尔 --表达: ------------------------------------ ALTEENVISION PROCEDURE [UP_GetRecordByPage] @tblName varchar(255State of Qatar, -- 表名 @fldName varchar(255卡塔尔国, -- 主键字段名 @PageSize int = 10, -- 页尺寸 @PageIndex int = 1, -- 页码 @IsReCount bit = 0, -- 再次来到记录总量, 非0 值则赶回 @OrderType bit = 0, -- 设置排序类型, 非0 值则降序 @strWhere varchar(1000卡塔尔(قطر‎ = '' -- 查询条件(注意: 不要加where卡塔尔国 AS declare @strSQL varchar(6000卡塔尔国 -- 主语句 declare @strTmp varchar(100卡塔尔(قطر‎ -- 一时变量 declare @strOrder varchar(400State of Qatar -- 排序类型 if @OrderType != 0 begin set @strTmp = '(select min' set @strOrder = ' order by [' + @fldName +'] desc' end else begin set @strTmp = '(select max' set @strOrder = ' order by [' + @fldName +'] asc' end set @strSQL = 'select top ' + str(@PageSize) + ' * from [' + @tblName + '] where [' + @fldName + ']' + @strTmp + '([' + @fldName + ']) from (select top ' + str((@PageIndex-1)*@PageSize) + ' [' + @fldName + '] from [' + @tblName + ']' + @strOrder + ') as tblTmp)' + @strOrder if @strWhere != '' set @strSQL = 'select top ' + str(@PageSize) + ' * from [' + @tblName + '] where [' + @fldName + ']' + @strTmp + '([' + @fldName

1、from子句组装来自区别数据源的多少; 2、where子句基于钦命的准则对记录行进行筛选; 3、group by子句将数据划分为三个分组; 4、使用聚焦函数进行计算; 5、使用having子句挑选分组; 6、总括有所的表明式; 7、使用order by对结果集实行排序。 举个例子表达: 在学员成绩表中 (暂记为 tb_Grade卡塔尔国, 把 "考生姓名"内容不为空的笔录遵照 "考生姓名" 分组, 而且挑选分组结果, 选出 "总成绩" 大于 600 分的. 标准顺序的 SQL 语句为: Select 考生姓名, max(总成绩卡塔尔(قطر‎ as max总成绩 from tb_Grade where 考生姓名 is not null group by 考生姓名 having max(总成绩State of Qatar 600 order by max总成绩 在地点的演示中 SQL 语句的施行各类如下: (1卡塔尔. 首先推行 FROM 子句, 从 tb_Grade 表组装数据源的数据 (2卡塔尔(قطر‎. 施行 WHERE 子句, 筛选 tb_Grade 表中兼有数据不为 NULL 的数据 (3State of Qatar. 执行 GROUP BY 子句, 把 tb_Grade 表按 "学子姓名" 列举办分组 (4卡塔尔国. 计算 max(卡塔尔 集中函数, 按 "总成绩" 求出总成绩中最大的部分数值 (5卡塔尔(قطر‎. 施行 HAVING 子句, 筛选课程的总战表大于 600 分的. (7卡塔尔国. 试行 O奥德赛DE景逸SUV BY 子句, 把最后的结果按 "Max 成绩" 实行排序.

Microsoft included several hundred stored procedures in the various versions of Microsoft SQL Server and it has documented a good percentage of them. But many stored procedures remain undocumented. Some are used within the Enterprise Manager GUI in SQL 2000 and were not intended to be used by other processes. Microsoft has slated some of these stored procedures to be removed (or they have been removed) from future versions of SQL Server. While these stored procedures can be very useful and save you lots of time, they can be changed at any time in their function or they can simply be removed.

  • ']) from (select top ' + str((@PageIndex-1)*@PageSize) + ' [' + @fldName + '] from [' + @tblName + '] where ' + @strWhere + ' ' + @strOrder + ') as tblTmp) and ' + @strWhere + ' ' + @strOrder if @PageIndex = 1 begin set @strTmp ='' if @strWhere != '' set @strTmp = ' where ' + @strWhere set @strSQL = 'select top ' + str(@PageSize) + ' * from [' + @tblName + ']' + @strTmp + ' ' + @strOrder end if @IsReCount != 0 set @strSQL = 'select count(*) as Total from [' + @tblName + ']'+' where ' + @strWhere exec (@strSQL)

The chart below shows that while many of the procedures have been carried through from one version of Microsoft SQL Server to another, new stored procedures have been introduced, and some have been removed from the install package. Most, if not all, of the procedures require the user to be a member of the sysadmin fixed server role in order to execute the procedures. The stored procedures that interact with the file system also require that the user executing the procedure (as well as SQL Server's service account) have access to the file/folder.

Procedure NameSQL 2000SQL 2005SQL 2008sp_executeresultsetX sp_MSforeachdbXXXsp_MSforeachtableXXXsp_readerrorlogXXXxp_create_subdir XXXp_delete_file XXxp_dirtreeXXXxp_fileexistXXXxp_fixeddrivesXXXxp_getfiledetailsX xp_getnetnameXXXxp_loginconfigXXXxp_makecabX xp_msverXXXxp_get_mapi_profilesXXXxp_subdirsXXXxp_test_mapi_profileXXXxp_unpackcabX

sp_executeresultset

Microsoft removed this handy little procedure called sp_executeresultset from SQL Server in SQL Server 2005. It allows you to generate dynamic SQL code on the fly by using a SELECT query. Then, the resulting SQL commands will be executed against the database. It permits you to create a single piece of code that can, in a single step, find the number of records in every table in your database (as the example shows). This is an undocumented stored procedure and there is no way of knowing why it was removed. But, alas, this handy utility is gone.

exec sp_execresultset 'SELECT ''SELECT '''''' + name + '''''', count(*) FROM '' + namefrom sysobjectswhere xtype = ''U'''

sp_MSforeachdb / sp_MSforeachtable

Two procedures, sp_MSforeachdb and sp_MSforeachtable, are wrappers around a cursor. They allow you to execute T-SQL code against each database on your SQL Server and each table within the current database, respectively. You cannot, however, use an sp_MSforeachtable command within an sp_MSforeachdb command in SQL 2000 and prior. The cursor name that was used within those procedures was the same (hCForEach) and would therefore return an error saying that the cursor name was already in use for each execution of the sp_MSforeachtable. In SQL Server 2005, Microsoft resolved this issue. In order to "next" the command, you must tell one of the procedures it will be using a different replacement character other than the default question mark. I change the replacement character in the database command because it's easier.

Print each table name in the current database.

exec sp_MSforeachtable 'print ''?'''

Print each database on the current server.

exec sp_MSforeachdb 'print ''?'''

Print each table on the current server.

exec sp_MSforeachdb 'use [@] exec sp_MSforeachtable ''print''''@.?''''''', '@'

sp_readerrorlog / xp_readerrorlog

The stored procedure sp_readerrorlog actually comes in two forms. Each works the same; one is simply a wrapper for the second. The wrapper stored procedure is sp_Server存款和储蓄进程参数及例子,Server运营时自动施行存款和储蓄进程。readerrorlog and it calls xp_readerrorlog. Both have four input parameters, but only the first two are useful to us. The first parameter establishes the file number that you wish to view. The second is the log to view (1 or null for ERRORLOG, 2 for SQL Agent Log). This allows you to view your error logs quickly and easily instead of having to look at the bloated log viewer that now comes with SQL Server 2005 and SQL 2008.

View the current SQL ERRORLOG file.

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