ms_sql_server_数据库使用手册
SQLServer教程
SQLServer教程SQLServer 是由Microsoft开发的关系型数据库管理系统，它是一种可靠且高效的数据管理工具。
本教程将帮助您更好地了解SQLServer，并提供使用它的基本知识和技巧。
安装SQLServer-------------------------第一步是安装SQLServer。
您可以在Microsoft官方网站上下载SQLServer的安装程序。
按照安装向导的指示完成安装过程。
一旦安装完成，您将能够开始使用SQLServer。
连接SQLServer-------------------------您可以使用SQLServer Management Studio（SSMS）连接到SQLServer。
打开SSMS，然后在连接窗口中输入正确的服务器名称、身份验证方式和凭据。
一旦连接成功，您将能够访问和管理SQLServer中的数据库。
创建数据库-------------------------在SQLServer中，您可以使用T-SQL语句来创建数据库。
例如，使用以下语句可以创建一个名为"mydatabase"的数据库：```CREATE DATABASE mydatabase;```执行此语句后，您将在SQLServer中看到一个新的数据库。
创建表-------------------------要在数据库中存储数据，您需要创建表。
使用T-SQL语句可以轻松创建表。
例如，使用以下语句可以创建一个名为"employees"的表：```CREATE TABLE employees (id INT PRIMARY KEY,name VARCHAR(50),age INT,salary DECIMAL(10,2));```这将创建一个包含id、name、age和salary列的表。
插入数据-------------------------插入数据是通过使用INSERT INTO语句完成的。
MSSQLSERVER2008数据库使用手册
MS SQLSERVER 2008数据库使用手册
一、导入数据库架构
1、打开本地计算机上的SQL Server Management Studio 客户端软件：
2、登陆本机数据库控制端：
3、选择生成SQL脚本：
4、选中需要导出脚本的库名：
5、选择兼容sql2005的版本的脚本：
6、修改sql脚本的保存路径：
7、查看生产脚本生成的选项：
8、成功生成sql脚本：
9、等待脚本生成完毕，进入存放目录用记事本打开脚本文件,修改库名为万网提供的数据库名，并
确保您的脚本中所有者是DBO，否则请替换成DBO：
10、连接到万网提供的目标数据库服务器：
注：IP一项也可以填入数据库服务器的域名：us*-**(us******)
11、并点击新建查询，拷贝您记事本中的SQL 脚本代码到上图显示的查询分析器中，点击分析脚本，如果没有语法错误，就点击执行脚本，直到执行完毕。
到此，您的数据库架构已经完整的导入到万网的数据库服务器。
二、下面咱们开始导入数据库表中的数据：
1、登陆您本地的数据库：
2、点击您本地计算机上的数据库右键-任务-导出数据：
3、选择目标数据库，如下添加万网提供给您的数据库信息(服务器地址，用户名，密码，数据库)：
4、点击下一步：
5、点击下一步，选中所有表，并确保“目标”中是DBO 的所有者：
6、点击下一步：
7、点击下一步，直到执行完毕：
8、成功导入数据：
到此，您的库已经完整的导入到万网提供的数据库服务器中，您可以用程序进行调用读取了。
MS-SQL-SERVER-数据库备份教程
MS SQL SERVER 数据库备份教程1.通过windows远程桌面，远程登录阿里云服务器
2.单击开始菜单，找到SQL Server Management Studio 单击并打开
3.打开后直接点击连接，（默认通过windows身份认证，如果连接不上，请使用SQL
server身份验证，并输入用户名和密码）。
4.连接成功后，单击右侧数据库展开，找到对应的数据库
5.在需要备份的数据库上单击右键-【任务】-【生成脚本】
5.在弹出的页面中点击下一步：
6.默认选择第一个不变，单击下一步：
7.单击次页面中的【高级】选项，在弹出的对话框中将滚动栏拉到最底部，找到【要编
写脚本的数据的类型】，将其值修改为：架构和数据（非常重要），修改完成后点击确定
8.单击如图所示按钮，选择备份文件的存放位置和名称，然后单击下一步，下一步，直到备份完成。
9.将生成的备份文件*.sql保存。
microsoft sql server management studio使用方法
microsoft sql server management studio使用方法摘要：一、Microsoft SQL Server Management Studio简介二、SQL Server Management Studio的安装与配置三、SQL Server Management Studio的主要功能与操作界面四、SQL Server Management Studio的实际应用案例五、常见问题与解决方法六、总结与建议正文：Microsoft SQL Server Management Studio（简称SSMS）是微软推出的一款用于管理和操作SQL Server数据库的图形界面工具。
它集成了丰富的功能，可以帮助数据库管理员（DBA）和开发人员轻松地实现数据库的创建、查询、更新和删除等操作。
下面将详细介绍SQL Server Management Studio 的使用方法。
一、Microsoft SQL Server Management Studio简介SQL Server Management Studio是Microsoft SQL Server的重要组成部分，它提供了一个集成的工作环境，可以让用户轻松地管理和维护数据库。
SSMS支持多种数据库管理任务，如数据库设计、备份、恢复、性能监控等。
二、SQL Server Management Studio的安装与配置1.下载与安装：首先，从微软官方网站下载适用于操作系统的SQL Server Management Studio安装包。
下载完成后，双击安装文件，按照提示完成安装过程。
2.配置：安装完成后，打开SSMS，根据实际需求进行相关配置，如设置默认数据库、连接方式等。
三、SQL Server Management Studio的主要功能与操作界面1.功能：SSMS主要包括以下几个功能模块：数据库对象管理、查询窗口、报表和分析、数据建模、SQL脚本编辑等。
Microsoft SQL Server 2012 用户手册说明书
“The new features in Microsoft SQL Server 2012 will help us develop external websites and applications in weeks rather than months.”Adam Siejka, Database Development Manager, Knight Frank Global property consultancy Knight Frank wanted to enhance client service by helping its experts successfully combine geospatial data with other sources of information. In 2012, it upgraded its existing data management software to Microsoft SQL Server 2012, and combined this with use of Bing Maps for Enterprise. The firm has already seen an increase in productivity, with new application development time reduced from months to weeks.Business NeedsKnight Frank, which is headquartered inLondon, is a leading independent globalproperty consultancy. Its staff handlesmore than U.S.$700 billion worth ofcommercial, agricultural, and residentialreal estate a year, advising all kinds ofclients, from individual owners and buyersto investors and corporate tenants. Thecontinuing success of the businessdepends on the rapid delivery ofcomprehensive, accurate information—supported by quality opinion and advice.Knight Frank relies on geospatial data torun its business. However, its Londonresidential development team found itdifficult to share geospatial data with bothinternal and external sources. Adam Siejka,Database Development Manager, KnightFrank, says: “Geospatial support is a keyconcern for us because we deal withproperties and use both external andmobile applications.”Until recently, the c ompany’s knowledgeabout residential developmentopportunities was gathered from localauthorities’ town planning information,combined with the firm’s own data. It usedmanual processes, which were ofteninconsistent. Siejka says: “While the depthof the data was good, the ability to analyseand share insights was limited, leading to Microsoft SQL ServerCustomer Solution Case StudyKnight Frank Database Upgrade Cuts Website Development from Months to WeeksThis case study is for informational purposes only. MICROSOFT MAKES NO WARRANTIES, EXPRESS OR IMPLIED, IN THIS SUMMARY.Document published May 2012data quality and integrity issues.”The needs of the London residential development team corresponded with a review at Knight Frank of its existing data management software. The firm wanted to improve mobile working, ease collaboration, and guarantee always-on data availability.Joseph Megkousoglou, Lead Software Architect, Knight Frank, considered several alternatives to upgrading the existingMicrosoft SQL Server 2008 R2 deployments, including Oracle.SolutionWorking with Microsoft Partner itelligence, Knight Frank upgraded to Microsoft SQL Server 2012. The advanced integration, reporting, and analysis capabilities —combined with Bing Maps for Enterprise —provided the platform for building areporting and analysis tool for the London residential development team. Andy Steer, Director —Business Analytics, itelligence, says: “The Knight Frank team operates only within the M25, but the intention was to build a proof of concept capable of reuse for other teams, applications, and websites. We produced a solution based on Microsoft SQL Server 2012 within 15 days.”The first step in this process was to develop an application based on MicrosoftSharePoint Server 2010 Enterprise, to give access to rich data on residentialdevelopment opportunities in London. Steer says: “The interface for both internal data capture and initial analysis within the solution is delivered by SharePoint Server 2010, with dynamic maps provided by Bing Maps for Enterprise.”The London team can use maps to either find an existing development site or add a new one. Key development information can then be amended to reflect the added value that the team’s specific knowledge of the site represents. The filtering andsegmentation capabilities of the application can then be used to drive deeper level reporting and analysis provided by Microsoft SQL Server 2012 Reporting Services and Microsoft SQL Server 2012 Power View.BenefitsThe London residential development teamat Knight Frank now has better quality, more dynamic information to support its advice to clients. The unified toolset in SQL Server 2012 means Knight Frank staff is working more productively without relying on manual systems. As a result, thecompany can operate an effective online service for customers, available 24 hours a day, seven days a week.∙ Development time for externalwebsites cut from months to weeks. The success of the proof of concept with the team will result in productivity gains throughout the business. Siejka says: “The new features in Microsoft SQLServer 2012 will help us develop external websites and applications in weeks rather than months.”∙ Speed, accuracy, and efficiency bolster service to customers.With the new application and enhanced geospatial data, the London residential development team at Knight Frank is experiencing greater customer satisfaction. Liam Bailey, Head ofResidential Research, Knight Frank, says: “We’ve improved collaborat ion among our experts, who can now deliver an even better service, which is faster and more accurate.”∙ AlwaysOn feature in SQL Server 2012 ensures high availability.Megkousoglou says: “The AlwaysOn feature helps deliver maximum uptimeand data availability, which is a key requirement for a global businessoperating 24 hours a day, seven days a week.”∙ Microsoft Partner delivers knowledge transfer to in-house developers. Trusted adviser itelligence has successfully transferred specialist knowledge during the deployment of SQL Server 2012. Siejka says: “Having begun with a beta version of SQL Server 2012, itelligence has helped us with the integration work with Bing Maps for Enterprise, as well as mentoring, workshops, and co-development.”。
SQL Server实用教程(SQL Server 版)
读书笔记模板
01 思维导图
03 目录分析 05 精彩摘录
目录
02 内容摘要 04 读书笔记 06 作者介绍
思维导图
本书关键字分析思维导图
教学
实验
数据库
实验
数据库
创建
设计
版
应用
综合 习题
实习
实用教程
管理
过程
系统
器
数据
应用
内容摘要
本书是普通高等教育“十一五”国家级规划教材，分为实用教程、实验和综合应用实习三部分。本书以 MicrosoftSQLServer2008中文版为教学和开发平台，先介绍数据库的基本概念、数据库创建、表与表数据操作、 数据库的查询和视图、T-SQL语言、索引与数据完整性、存储过程和触发器、备份与恢复、系统安全管理、 SQLServer2008与XML等数据库基础知识，然后是实验和综合应用实习题目。本书免费提供教学课件和配套的客户 端/SQLServer2008应用系统数据库和源程序文件。
P0.1数据库 P0.2基本表 P0.3视图 P0.4完整性约束 P0.5存储过程 P0.6触发器 P0.7系统功能 P0.8 B/S方式界面的设计
P1.1创建图书管理站 P1.2设计母版页 P1.3设计“读者管理”页面 P1.4设计“借书”页面
P2.1创建图书管理系统 P2.2设计父窗体 P2.3设计读者管理窗体 P2.4设计借书窗体
目录分析
第2章数据库创建
第1章数据库的基 本概念
第3章表与表数据 操作
1
第4章数据库的 查询和视图
2
第5章 T-SQL 语言
3
第6章索引与数 据完整性
MS Sql操作手册microsoft Sql server
/**--创建数据库--**/if exists(select*from sys.databases where name='joysdb') drop database joysdbcreate database joysdbgouse joysdbgo/**--创建表joystable--**/if exists(select*from sys.tables where name='joystable')drop table joystablecreate table joystable(id int identity(1,1),--以为起始点每次加staffno int,staffsex char(2),jname varchar(255),constraint uk_jname unique(jname),--唯一性约束constraint pk_id primary key(id)--主键约束)go/**--对表的基础操作--**/insert into joystable values(2,'男','仓库')--全字段插入insert into joystable(staffno,jname)values(1,'仓库')--部分字段插入go--增加删除修改字段alter table joystableadd column telephone varchar(14)alter table joystabledrop column telephonealter table joystablealter column jname varchar(200)go--更新字段update joysdbset jname='仓库'where id=2--删除记录delete joysdb where jname='仓库'--查看表的属性exec sp_help joystable--表格重命名exec sp_rename joystable,joystablesgocreate rule sex_rule as@value='男'or@value='女'--建立规则gosp_bindrule'sex_rule','joystable.staffsex','futureonly'--规则与表字段进行绑定gosp_unbindrule'stuInfo.sex'--解除表字段与规则间的绑定go/**--创建表joyforeignkey--**/if exists(select*from sys.tables where name='joyforeignkey') drop table joyforeignkeycreate table joyforeignkey(staffno int primary key identity,storeno int not null,--非空约束storename varchar(255),constraint fk_no foreign key(staffno)references joystable(id)--外键约束)gocreate default dt_storeno as 5 --创建默认值gosp_bindefault'dt_storeno','joyforeignkey.storeno','futureonly'--绑定默认值gosp_unbindefault'joyforeignkey.storeno'--解除绑定godrop default dt_storenogo/**--表查询操作--**/select*from joystable cross join joyforeignkey--交叉连接select*from joystable a inner join joyforeignkey b on a.id=b.fid--内连接select*from joystable a left outer join joyforeignkey b on a.id=b.fid--左外连接其中outer可以省略select*from joystable a right outer join joyforeignkey b on a.id=b.fid --右外连接select*from joystable a full outer join joyforeignkey b on a.id=b.fid--全外连接go/**--视图相关操作--**/create view v_joystableasselect*from joystablegoselect*from v_joystablegoupdate v_joystable set staffsex='女'where id=2go/**--索引相关操作--**/select*from joystablegoif exists(select*from sys.indexes where name='index_joystable')--创建非聚集索引drop index joystable.index_joystablecreate index index_joystable on joystable(staffno)goif exists(select*from sys.tables where name='joytest')drop table joytestcreate table joytest(id int,name varchar(255),score int,address varchar(255))goif exists(select*from sys.indexes where name='clustered_index_joytest') drop index joytest.clustered_index_joystablecreate unique clustered index clustered_index_joytest on joytest(id)go/**--存储过程相关--**/if exists(select*from sys.sysobjects where name='QuaryInfor') drop proc QuaryInforgocreate proc QuaryInforwith encryption--使用了encryption 的存储过程不能通过exec sp_helptext查看其原脚本asselect*from joytestgoexec QuaryInfor--调用存储过程go--删除drop proc QuaryInforgo--查看定义脚本exec sp_helptext QuaryInforgo--修改alter proc QuaryInforasselect*from joytest where id>1go--带输出参数的存储过程的演示create proc testoutput@p1int,@p2int output,@p3int output,@p4varchar(10)outputasselect@p2=@p1*2select@p3=@p2*3select@p4='asdrqer'go--创建登陆存储过程if exists(select name from sys.sysobjects where name='proc_login'and type='p')drop proc proc_logingocreate proc proc_login@uname varchar(10),@upwd varchar(20),@flag varchar(10)outputasdeclare@pwd varchar(10)select@pwd=U_pwd from Users where U_name=@unameif@pwd is nullset@flag=-2elseif@pwd=@upwdset@flag=0elseset@flag=-1/**--事务--**/begin transaction Test1insert into joytest values(1,'李明',88)update joytest set score=98 where id=1go--标志成功的隐性事务的结束commit transaction Test1go--当事务操作失败或无效时返回到开始正确状态rollback transaction Test1goset implicit_transactions on--启动隐性事务模式set implicit_transactions off--关闭隐性事务模式gobegin traninsert into joytest values(1,'李明',88)waitfor delay'00:00:20'rollback tran/**--触发器--**/--delete 触发器if exists(select name from sys.sysobjects where name='IfDeleteAdmin'and type='TR')drop trigger IfDeleteAdmingocreate trigger IfDeleteAdminon joytestfor delete asif (select name from deleted)='admin'beginprint'you cannot delete the manager of admin:'rollback transactionendgo--insert 触发器if exists(select name from sys.sysobjects where name='IfScoreLessThanZero' and type='TR')drop trigger IfScoreLessThanZerogocreate trigger IfScoreLessThanZeroon joytestfor insert asif(select score from deleted)<0beginprint'Input Error,Score must more than zero!'rollback transactionend--update 触发器if exists(select name from sys.sysobjects where name='IfUpdateAdmin'and type='TR')drop trigger IfUpdateAdmingocreate trigger IfUpdateAdminon joytestfor update asif (select name from deleted)='admin'beginprint'you cannot update the informations of admin'rollback transactionendgo--instead of 触发器与普通触发器的区别在于前者在操作之前触发后者在操作之后触发，并且前者不需要手动写事务回滚--instead of delete 触发器if exists(select name from sys.sysobjects where name='IfDeleteAdminI'and type='TR')drop trigger IfDeleteAdminIgocreate trigger IfDeleteAdminIon joytestinstead of deleteasif (select name from deleted)='admin'beginprint'you cannot delete the manager of admin:' endgo。
SQL Server 使用指南说明书
1. What are the two authentication modes in SQL Server?There are two authentication modes –•Windows Mode•Mixed ModeModes can be changed by selecting the tools menu of SQL Server configuration properties and choose security page.2. What Is SQL Profiler?SQL Profiler is a tool which allows system administrator to monitor events in the SQL server. This is mainly used to capture and save data about each event of a file or a table for analysis.3. What is recursive stored procedure?SQL Server supports recursive stored procedure which calls by itself. Recursive stored procedure can be defined as a method of problem solving wherein the solution is arrived repetitively. It can nest up to 32 levels.CREATE PROCEDURE [dbo].[Fact](@Number Integer,@RetVal Integer OUTPUT)ASDECLARE @In IntegerDECLARE @Out IntegerIF @Number != 1BEGINSELECT @In = @Number – 1EXEC Fact @In, @Out OUTPUT - Same stored procedure has been called again(Recursively) SELECT @RetVal = @Number * @OutENDELSEBEGINSELECT @RetVal = 1ENDRETURNGO4. What are the differences between local and global temporary tables?•Local temporary tables are visible when there is a connection, and are deleted when the connection is closed.CREATE TABLE #<tablename>•Global temporary tables are visible to all users, and are deleted when the connection that created it is closed.CREATE TABLE ##<tablename>5. What is CHECK constraint?A CHECK constraint can be applied to a column in a table to limit the values that can be placed in a column. Check constraint is to enforce integrity.6. Can SQL servers linked to other servers?SQL server can be connected to any database which has OLE-DB provider to give a link. Example: Oracle has OLE-DB provider which has link to connect with the SQL server group.7. What is sub query and its properties?A sub-query is a query which can be nested inside a main query like Select, Update, Insert or Delete statements. This can be used when expression is allowed. Properties of sub query can be defined as• A sub query should not have order by clause• A sub query should be placed in the right hand side of the comparison operator of the main query• A sub query should be enclosed in parenthesis because it needs to be executed first before the main query•More than one sub query can be included8. What are the types of sub query?There are three types of sub query –•Single row sub query which returns only one row•Multiple row sub query which returns multiple rows•Multiple column sub query which returns multiple columns to the main query. With that sub query result, Main query will be executed.9. What is SQL server agent?The SQL Server agent plays a vital role in day to day tasks of SQL server administrator(DBA). Serv er agent’s purpose is to implement the tasks easily with the scheduler engine which allows our jobs to run at scheduled date and time.10. What are scheduled tasks in SQL Server?Scheduled tasks or jobs are used to automate processes that can be run on a scheduled time at a regular interval. This scheduling of tasks helps to reduce human intervention during night time and feed can be done at a particular time. User can also order the tasks in which it has to be generated.11. What is COALESCE in SQL Server?COALESCE is used to return first non-null expression within the arguments. This function is used to return a non-null from more than one column in the arguments.Example –Select COALESCE(empno, empname, salary) from employee;12. How exceptions can be handled in SQL Server Programming?Exceptions are handled using TRY----CATCH constructs and it is handles by writing scripts inside the TRY block and error handling in the CATCH block.13. What is the purpose of FLOOR function?FLOOR function is used to round up a non-integer value to the previous least integer. Example is givenFLOOR(6.7)Returns 6.14. Can we check locks in database? If so, how can we do this lock check?Yes, we can check locks in the database. It can be achieved by using in-built stored procedure called sp_lock.15. What is the use of SIGN function?SIGN function is used to determine whether the number specified is Positive, Negative and Zero. This will return +1,-1 or 0.Example –SIGN(-35) returns -116. What is a Trigger?Triggers are used to execute a batch of SQL code when insert or update or delete commands are executed against a table. Triggers are automatically triggered or executed when the data is modified. It can be executed automatically on insert, delete and update operations.17. What are the types of Triggers?There are four types of triggers and they are:•Insert•Delete•Update•Instead of18. What is an IDENTITY column in insert statements?IDENTITY column is used in table columns to make that column as Auto incremental number or a surrogate key.19. What is Bulkcopy in SQL?Bulkcopy is a tool used to copy large amount of data from Tables. This tool is used to load large amount of data in SQL Server.20. What will be query used to get the list of triggers in a database?Query to get the list of triggers in database-Select * from sys.objects where type=’tr’21. What is the difference between UNION and UNION ALL?• UNION: To select related information from two tables UNION command is used. It is similar to JOIN command.• UNION All: The UNION ALL command is equal to the UNION command, except that UNION ALL selects all values. It will not remove duplicate rows, instead it will retrieve all rows from all tables.22. How Global temporary tables are represented and its scope?Global temporary tables are represented with ## before the table name. Scope will be the outside the session whereas local temporary tables are inside the session. Session ID can be found using @@SPID.23. What are the differences between Stored Procedure and the dynamic SQL?Stored Procedure is a set of statements which is stored in a compiled form. Dynamic SQL is a set of statements that dynamically constructed at runtime and it will not be stored in a Database and it simply execute during run time.24.What is Collation?Collation is defined to specify the sort order in a table. There are three types of sort order –1.Case sensitive2.Case Insensitive3.Binary25. How can we get count of the number of records in a table?Following are the queries can be used to get the count of records in a table -Select * from <tablename> Select count(*) from <tablename> Select rows from sysindexes where id=OBJECT_ID(tablename) and indid<226. What is the command used to get the version of SQL Server?Select SERVERPROPERTY(‘productversion’)is used to get the version of SQL Server.27. What is UPDATE_STATISTICS command?UPDATE_STATISTICS command is used to update the indexes on the tables when there is a large amount of deletions or modifications or bulk copy occurred in indexes.28. What is the use of SET NOCOUNT ON/OFF statement?By default, NOCOUNT is set to OFF and it returns number of records got affected whenever the command is getting executed. If the user doesn’t want to display the number of records affected, it can be explicitly set to ON- (SET NOCOUNT ON).29. Which SQL server table is used to hold the stored procedure scripts?Sys.SQL_Modules is a SQL Server table used to store the script of stored procedure. Name of the stored procedure is saved in the table called Sys.Procedures.30. What are Magic Tables in SQL Server?During DML operations like Insert, Delete, and Update SQL Server create magic tables to hold the values during the DML operations. These magic tables are used inside the triggers for data transaction.31. What is the difference between SUBSTR and CHARINDEX in the SQL Server?The SUBSTR function is used to return specific portion of string in a given string. But, INSTR function gives character position in a given specified string.SUBSTR(“Smiley”,3)Gives result as SmiCHARINDEX(“Smiley”,’i’,1)Gives 3 as result as I appears in 3rd position of the string32. What is the use of =,==,=== operators?= is used to assign one value or variable to another variable. == is used for comparing two strings or numbers. === is used to compare only string with the string and number with numbers.33. What is ISNULL() operator?ISNULL function is used to check whether value given is NULL or not NULL in sql server. This function also provides to replace a value with the NULL.34. What is the use of FOR Clause?FOR clause is mainly used for XML and browser options. This clause is mainly used to display the query results in XML format or in browser.35. What will be the maximum number of index per table?For SQL Server 2008 100 Index can be used as maximum number per table. 1 Clustered Index and 999 Non-clustered indexes per table can be used in SQL Server.1000 Index can be used as maximum number per table. 1 Clustered Index and 999 Non-clustered indexes per table can be used in SQL Server.1 Clustered Index and 999 Non-clustered indexes per table can be used in SQL Server.36. What is the difference between COMMIT and ROLLBACK?Every statement between BEGIN and COMMIT becomes persistent to database when the COMMIT is executed. Every statement between BEGIN and ROOLBACK are reverted to the state when the ROLLBACK was executed.37. What is the difference between varchar and nvarchar types?Varchar and nvarchar are same but the only difference is that nvarhcar can be used to store Unicode characters for multiple languages and it also takes more space when compared with varchar.38. What is the use of @@SPID?A @@SPID returns the session ID of the current user process.39. What is the command used to Recompile the stored procedure at run time?Stored Procedure can be executed with the help of keyword called RECOMPILE.ExampleExe <SPName> WITH RECOMPILEOr we can include WITHRECOMPILE in the stored procedure itself.40. How to delete duplicate rows in SQL Server?Duplicate rows can be deleted using CTE and ROW NUMER feature of SQL Server.41. Where are SQL Server user names and passwords stored in SQL Server?User Names and Passwords are stored in sys.server_principals and sys.sql_logins. But passwords are not stored in normal text.42. What is the difference between GETDATE and SYSDATETIME?Both are same but GETDATE can give time till milliseconds and SYSDATETIME can give precision till nanoseconds. SYSDATE TIME is more accurate than GETDATE.43. How data can be copied from one table to another table?INSERT INTO SELECTThis command is used to insert data into a table which is already created.SELECT INTOThis command is used to create a new table and its structure and data can be copied from existing table.44. What is TABLESAMPLE?TABLESAMPLE is used to extract sample of rows randomly that are all necessary for the application. The sample rows taken are based on the percentage of rows.45. Which command is used for user defined error messages?RAISEERROR is the command used to generate and initiates error processing for a given session. Those user defined messages are stored in sys.messages table.46. What do mean by XML Datatype?XML data type is used to store XML documents in the SQL Server database. Columns and variables are created and store XML instances in the database.47. What is CDC?CDC is abbreviated as Change Data Capture which is used to capture the data that has been changed recently. This feature is present in SQL Server 2008.48. What is SQL injection?SQL injection is an attack by malicious users in which malicious code can be inserted into strings that can be passed to an instance of SQL server for parsing and execution. All statements have to checked for vulnerabilities as it executes all syntactically valid queries that it receives.Even parameters can be manipulated by the skilled and experienced attackers.49. What are the methods used to protect against SQL injection attack?Following are the methods used to protect against SQL injection attack:•Use Parameters for Stored Procedures•Filtering input parameters•Use Parameter collection with Dynamic SQL•In like clause, user escape characters50. What is Filtered Index?Filtered Index is used to filter some portion of rows in a table to improve query performance, index maintenance and reduces index storage costs. When the index is created with WHERE clause, then it is called Filtered IndexGuru99 Provides FREE ONLINE TUTORIAL on Various courses likeJenkins Agile Testing RPA JUnitSoftware EngineeringSelenium CCNA AngularJS NodeJS PLSQL。
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MS SQLSERVER2008数据库使用手册
一、导入数据库架构
1、打开本地计算机上的SQL Server Management Studio客户端软件：
2、登陆本机数据库控制端：
3、选择生成SQL脚本：
4、选中需要导出脚本的库名：
文档由风行下载2014正式版官方下载//整理
5、选择兼容sql2005的版本的脚本：
6、修改sql脚本的保存路径：
7、查看生产脚本生成的选项：
8、成功生成sql脚本：
9、等待脚本生成完毕，进入存放目录用记事本打开脚本文件,修改库名为万网提供的数据库名，并确保您的脚本中所有者是DBO，否则请替换成DBO：
10、连接到万网提供的目标数据库服务器：
注：IP一项也可以填入数据库服务器的域名：us*-**(us******)
11、并点击新建查询，拷贝您记事本中的SQL脚本代码到上图显示的查询分析器中，点击分析脚本，如果没有语法错误，就点击执行脚本，直到执行完毕。
到此，您的数据库架构已经完整的导入到万网的数据库服务器。
二、下面咱们开始导入数据库表中的数据：
1、登陆您本地的数据库：
2、点击您本地计算机上的数据库右键-任务-导出数据：
3、选择目标数据库，如下添加万网提供给您的数据库信息(服务器地址，用户名，密码，数据库)：
4、点击下一步：
5、点击下一步，选中所有表，并确保“目标”中是DBO的所有者：
6、点击下一步：
7、点击下一步，直到执行完毕：
8、成功导入数据：
中国万网----领先的互联网应用服务提供商到此，您的库已经完整的导入到万网提供的数据库服务器中，您可以用程序进行调用读取了。
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