SQL Server

Accessing SQL Server Configuration Manager using WIN8, WIN10Because SQL Server Configuration Manager is a snap-in for the Microsoft Management Console program and not a separate program, SQL Server Configuration Manager does not appear as an

The previous section is about adding conditional constraints directly when creating a table, but how do you do this when you add conditional constraints after the table is created?In fact, with the SQL code written in the previous section, a lot is

@ @ERROR: An error number is returned if the current statement encounters an error, otherwise 0 is returned. It is important to note that @error is reset immediately after each statement is executed, so you should check the value after execution of

corresponding Relationship table SQL Server http://hovertree.com/menu/sqlserver/ C# Codesmith Data type Range of values Data type Range of values Null value instead of value Data type

The company has an old project because directly to the terminal shot pictures in the form of binary saved to the database, the database is larger so need to often delete these redundant data, manual removal time and effort, project leader let me

Using GETDATE () in the SQL Server date function to get the current date, the following will show you how to get the date using the SQL Server date function.But what if we just need to get the current date, do not need the time part, or do not need

Write a stored procedure a few days ago, the stored procedure used a transaction, and then I put some code comments out to debug the wrong, suddenly found a table is locked, the original is the code to create a transaction forget to comment out.

 first, define variables--简单赋值declare@aintset@a=5print @a--使用select语句赋值declare@user1 nvarchar(50)select@user1=‘张三‘print @user1declare@user2 nvarchar(50)select@user2 = Name from ST_User whereID=1print @user2--使用update语句赋值declare@user3

Use Guid.NewGuid () in C #. ToString ()SQL with NEWID ()The above method generates a 36-bit GUID, which needs to be replaced with the '-' character if it needs to be converted to 32-bit.Methods in sql: replace (NEWID (), '-', ')----------------------

The way SQL Server learns to summarize　　lol bounty hunter : Sail1,SQL Server query statementTable:studentFields: Stuid, Stuname (first name), Stuage (age), Stuscore (score),General QuerySelect * fromConditional query where behind and

Today to work to open the computer, found that all the project started after the error, the reason is that the database SA validation error, unable to database links and so on things, simply say---SQL Server cramps!!! : (It was a good day yesterday.

SELECT [Spid] =session_id, Ecid,[Database] = db_name(sp.dbid),[User] =Nt_username,[Status] =Er.status,[Wait] =Wait_type,[individual Query] = SUBSTRING(QT.text, Er.statement_start_offset/ 2, ( Case whenEr.statement_end_offset= - 1 Then

when vs2015 imports MDF database files : This database file is incompatible with the current instance of SQL Server . mdf The version of the file is sql SERVER 2005 ,vs2015 The own database is LocalDB , direct import of mdf file will prompt :

-- To view the current link situation: Select * from sys.servers; --Reference:https://msdn.microsoft.com/zh-cn/library/ms190479.aspxEXECsp_addlinkedserver@server=N'CEM1',@srvproduct=N"',@provider=N'SQLOLEDB',@datasrc=N'192.168.35.6'--Add user login

Transaction log TruncationTo prevent the database's transaction log from filling up, routine backups are critical. Under the simple recovery model, the log is automatically truncated when the database is backed up, and in the full recovery model,

1 Installation SummaryToday changed the computer, a lot of software has to be re-installed, during the report a lot of problems, such as first loaded vs2008 and then installed SQL SERVER2008R2 will report a "There are 2008 early version", through

original:https://www.mssqltips.com/sqlservertip/1414/run-same-command-on-all-sql-server-databases-without-cursors/ -- this query would return a listing of all Tables in all databases on a SQL instance: declare @command varchar ( ) select

--Main principle:EXEC sp_spaceused ' table name '--get table occupy spaceEXEC sp_spaceused '--all the space in the repositoryCREATE TABLE #Data (name varchar), row varchar (+), reserved varchar (+), Data varchar (+), index_size varchar (100) ,

1, look for redundant records in the table, duplicate records are based on a single field (Peopleid) to determine Select* FROM peoplewhere Peopleid in (selectPeopleidFromPeopleGroupByPeopleidHavingCount (Peopleid)> 1)2, delete redundant records in

Http://www.cnblogs.com/jiajiayuan/archive/2011/06/16/2082488.htmlFor example, all of the following are examples of studnet tables:Calculating string LengthsLen () is used to calculate the length of a stringSelect Sname, Len (sname) from