sql server 2016 books

Connections in ASP Scripts Take advantage of connection pooling by opening and closing a connection to a database on each Active Server Page. To open this connection, type the following statement in the To turn off this connection, place the following in the If you do not define the connection settings correctly as described earlier in this article, you may receive the following two error messages: Microsoft OLE DB Provider for ODBC Drivers erro

, to begin TRAN position, as never happened End Else Begin Commit Tran-Commit a transaction, no problem, then just commit End Examples BEGIN Tran--Open Transaction Declare @tran_errorint; --Storage ErrorSet@tran_error =0; --default no error update FruitSetNumbers = numbers-1 whereids='k002' Set@tran_error = @tran_error +@ @ERROR; update LoginSetaccount=account-1 whereUsername='Wangwu' Set@tran_error = @tran_error +@ @ERROR; insert into Orders values ('d002','Wangwu','

statement sent to SQL ServerDECLARE CRSR Cursor forSELECT Blk from #Who WHERE [email protected] and blkDECLARE @blk int;Open CRSR;FETCH NEXT from CRSR to @blk;while (@ @FETCH_STATUS = 0)BEGIN;DBCC INPUTBUFFER (@blk);FETCH NEXT from CRSR to @blk;END;Close CRSR;Deallocate CRSR;--Locked resourcesSELECT #Who. Spid,hostname,objid,[type],mode,object_name (ObjID) as objname from #LockJOIN #WhoOn #Who. spid= #Lock. spidand [email protected]WHERE objidDROP Ta

Server. Next, analyze the SQL Server environment to be upgraded to ensure that the environment supports upgrading the current version to the expected version of SQL Server 2014. For information on the supported paths for upgrading from an earlier version of

running SQL Server 2014. You should then analyze the SQL Server environment that you plan to upgrade to ensure that your environment supports upgrading the current version to the expected version of SQL Server 2014. For upgrade

All server roles are "fixed" roles, and they exist from the start-all of the server roles you will have have existed since the moment the SQL Server was installed.RoleCharacteristicsSysadminThis role is capable of performing any operation on SQL

, including me, will encounter the same thing during his or her development process. I know why this happens, and I know how to overcome it. II. Scope of reading Note that the main focus of this series of articles is "optimizing the performance of transactional SQL Server database data access", but most optimization technologies are also applicable to other databases. The optimization technology I will disc

smooth sailing. When the site's users started to grow at a high speed on a daily basis, the problem immediately occurred. The customer sent an email complaining that the website performance was too slow and that the website was losing customers. You started to investigate the system and soon found that the system was very slow when accessing or updating data. When I started the database, the database records increased rapidly, and some table records reached thousands of rows. The test team cond

Cursor forSELECT Blk from #Who WHERE [email protected] and blkDECLARE @blk int;Open CRSR;FETCH NEXT from CRSR to @blk;while (@ @FETCH_STATUS = 0)BEGIN;DBCC INPUTBUFFER (@blk);FETCH NEXT from CRSR to @blk;END;Close CRSR;Deallocate CRSR;--Locked resourcesSELECT #Who. Spid,hostname,objid,[type],mode,object_name (ObjID) as objname from #LockJOIN #WhoOn #Who. spid= #Lock. spidand [email protected]WHERE objidDROP Table #Who;DROP Table #Lock;(2). Use SQL

for each SQL Server Agent instance.When you select an account for the SQL Server service, your account requires the following permissions: In all versions of Windows, the permission to log on as a service ( SeServiceLogonRight ) In Windows Server, the

PrefaceAfter the analysis of the previous several articles, I have gotten a glimpse of the importance of SQL Server statistics, so this article is about to sacrifice this artifact.The content of this article will be very long. Sit on the bench and enjoy melon seeds and snacks...No nonsense.Technical preparationThe database version is SQL Server2008R2, which uses

Text: Third--Part II--the fourth article configuring SQL Server Mirroring--Non-domain environmentIn this paper, the non-domain environment to build a mirror demonstration, for the domain environment, can be referenced above: http://blog.csdn.net/dba_huangzj/article/details/28904503 Source: http://blog.csdn.net /dba_huangzj/article/details/27652857The image set in the domain environment is shown earlier in t

Test environment: DC01 DC Server Member servers in the CNDB02 domain to install SQL Server First step: Adding users to SQL Services and SQL administrators Service startup account Sqlsvc Password: liy6$z92 SQL Administrator u

Cause Analysis and Solution for SQL Server failure to contract log files, SQL Cause Analysis An error is reported when the server executes a job that compresses the log file size recently. One of my batch log shrinking scripts USE [master] GO/****** Object: StoredProcedure [dbo]. [ShrinkUser_DATABASESLogFile] Script D

Tags: commit int use else Sage HTML arc har targeOriginal in: https://www.lesg.cn/netdaima/2016-55.html Stored procedures are often required when using MSSQL Some operations are in front of errors, need to be rolled back; Here is the code; BEGIN TRANSACTION--Start a transaction DECLARE @errorSun int=0 --Defining Error Counters DECLARE @ErrorMessage NVARCHAR(4000)="'; --DECLARE @Remark NVARCHAR (4000) = ";--remarks BEGINTRYBegin PRINT('here is the

Label:Original: SQL Server Tuning Series advanced (in-depth profiling statistics)ObjectiveAfter the analysis of the previous few, in fact, in general has been the first glimpse of the importance of SQL Server statistics, so this article will be sacrificed this artifact.This content will be very long, sit good bench, me

Tags: single-table ext comments List Constrain generated Yes split and easy to useHttp://www.cnblogs.com/zhijianliutang/archive/2012/10/28/2743722.htmlWhen we have a larger amount of data, we need to split the large tables into smaller tables, and queries that only access departmental data can run faster, the rationale being that the data to be scanned becomes smaller. maintenance tasks (for example, rebuilding an index or backing up a table) can also run faster.We can no longer get the partitio

ObjectiveAfter the analysis of the previous few, in fact, in general has been the first glimpse of the importance of SQL Server statistics, so this article will be sacrificed this artifact.This content will be very long, sit good bench, melon seeds snacks and so on ...No nonsense, go to the chase.Technical preparationThe database version is SQL SERVER2008R2, whic

Label:--Paging data----row_number () is called window-opening function, can be paged operation Select Row_number () over (order by ID) as Num,*from gb_data----adds a sequential num value to each column to facilitate the use of the first few data. Select row_number () over (order by ID) as num,* from Gb_data where Num>5and num 10--This line of code is wrong, because the system does not recognize how much num is, why? -Because of the order of execution, the

Server Topic 3 Problem Description:The following three relational tables are used:Card library cards. CNO card number, name, classBooks. BNO ISBN, bname title, AUTHOR author, price, QUANTITY inventory numberBorrow Library records. CNO Library card number, BNO ISBN, Rdate book dateNote: Limit each type of books to only one copy; the number of inventory books is ch