SQL Server

Tag: A color mil read-only route else procedure to determine the title runIntroductionAlways on Availability group activity accessibility includes support for performing backup operations on secondary replicas. Backup operations can put a lot of

SQL Server Series Articles SQL Server series SQL Server installation tutorial "SQL Server Series" database three main paradigms SQL Server Series form query

SQL Server command: Select NewId (), you can get the native UUID value of the SQL Server database, so we can write this instruction to MyBatis's primary key generation policy configuration Selectkey.As follows:In the Mapper.xml type mapping

SQL classificationDDL Data Definition LanguageCreate Alter dropDML Data Manipulation languageInsert Update Delete SelectDCL Data Control LanguageGrant revoke denyCreation and management of databasesFile data file (primary data file. MDF secondary

Server roles:Described in order from the lowest-level role (bulkadmin) to the highest-level role (sysadmin):1.bulkadmin: This role can run the BULK INSERT statement. This statement allows data to be imported from a text file into the SQL Server2008

To understand the execution plan, you have to understand it, the various nouns. Since I don't know much about it. This article is intended as a write-only, do not understand the understand before writing.At the beginning, it is important to note

All select Plus with (NoLock) resolves blocking deadlocks using NoLock and READPAST in query statementsWhen dealing with a database deadlock exception, one of the recommendations is to use NOLOCK or READPAST. Some technical knowledge points about

Recent project development using the SQL Server database project in VS, because there are many automated scripts that access system views, such as sysobjects, scripts in the project always prompt unresolved references, the workaround is as

Text type:Char: fixed -length non- Unicode character data with a maximum length of 8,000 charactersVARCHAR: variable -length non- Unicode character data with a maximum length of 8,000 charactersText: Store long text messages with a maximum length of

First, the graphical interface operation of the indexSQL Server is very powerful is the graphical interface operation. About the index is also so powerful, many operations such as rebuilding the index Ah, look at various statistics Ah, can be

First, debris view maintenanceDBCC showcontig (' table name ')DBCC showcontig ('t_nofitstudy')The results are as follows:DBCCShowcontig is scanning.'T_nofitstudy'table ... Table:'T_nofitstudy'(2078630448); Index ID:1, Database ID:7has been

-- With usage -- so you can understand . with as ( SQL statement)Select* from SQL statement variable or called temporary table name--Recursive invocation withCte as( SelectZtbm_id,ztbm_name,parentid fromTb_zym_ztbmwhereParentID is NULL

SQL loops, in addition to cursors, are as follows --- create temporary table -- DECLARE @tradeID INT; --if not object_id (' Tempdb. #A ') is null -- drop table #A --create table #A ([tradeid]

SELECT DISTINCT db_name () as n ' db_name ', e.name as n ' schema_name ', object_name (a.object_id) as n ' Table_ Name ', b.name n ' index_name ', user_seeks n ' seek ', user_scans n ' Scan ',

DECLARE @Table_name varchar (60)Set @Table_name = ';If Exists (Select top 1 1 from sysobjectsWhere objectproperty (ID, ' tablehasidentity ') = 1and upper (name) = Upper (@Table_name))Select 1Else Select 0--orIf Exists (Select top 1 1 from sysobjects

Select CONVERT (varchar, GETDATE (), 8)--Get current time 14:13:59Select CONVERT (varchar, GETDATE (), 23)-Retrieved 2017-07-01Select CONVERT (varchar, GETDATE (), 12)-Acquired 170701Select CONVERT (varchar, GETDATE (), 121)--Gets the day of the

PHP Fatal Error: Call to undefined function sqlsrv_connect () inphp link SQL Server appears because: php5.3 and above have removed the previous link method, want to use , you need to use PDO or SQLSVR, plus the DLL extensions provided by Microsoft.

Xtype: Object type. Can be one of the following types of objects: C = CHECK Constraint D = default value or defaults constraint f = FOREIGN key constraint L = log fn = scalar function if = inline table function p = Stored procedure pk = PRIMARY KEY

--------------------------------------------------------             Parsing String Functions                  --------------------------------------------------------create function [dbo]. [Fn_split] (@p_str  varchar (8000),  @p_split  varchar (10))

I believe many friends will be attracted to SQL Server 2016 R language features, upgrade their own database to SQL Server 2016, but when you install SQL Server 2016 R language components, you will find that it is not directly used, For example, when