SQL Server

What is the reason why SQL Server table hints cannot modify the table structure? Here's how to handle the problem, and if you've had problems with SQL Server table modifications, you might want to take a look.The newly installed SQL Server 2008,

SQL Server tablestype of table:① Temporary tableTemporary tables can be used to process intermediate data or to use temporary tablesShare the work in progress with other connections. Temporary tables onlyCan be placed in tempdb.Private Temp Table (#)

if exists(Select * fromDbo.sysobjectswhereId= object_id(N'[dbo]. [Sp_who_lock]') and ObjectProperty(ID, N'isprocedure')= 1)Drop procedure [dbo].[Sp_who_lock]GO UseMasterGoCreate procedureSp_who_lock asbeginDeclare @spid int,@bl int,

1. Open your manager--Select your database--Select All Tasks--> Detach the Database--and then copy it to someone else, then you add your database.2. Copy the location of the copy database: You can view the location of the database by clicking on the

-sql server generates a test environment:create database Test; gouse [test]goif object_id (' Tab2 ', ' U ') is not nulldrop table Tab2gocreate TABLE [dbo]. [TAB2] ([ID] [int] IDENTITY () not null,[tabid] [int.] not null,[name2] [nvarchar] () NULL)

Database objectsThe database maintains a series of tables that store all objects, data types/constraints/configuration items/resources, etc., in 2008 kinds we call them system base tables, and these tables are invisible to us by default. We can log

Generally we use SELECT .... The table fields that are generated by the into statement are allowed to be null. And if we need to change to NOT NULL?Select 'ALTER TABLE dbo. XXXXXXX ALTER COLUMN' + QUOTENAME(c.name)+ ' ' +T.name+ Case

The concept of an indexThe purpose of the index: our data query and processing speed has become a measure of the success of the application system standards, and the use of indexes to speed up data processing speed is often the most commonly used

SQL SERVER 2008 cannot start a workaround for T-SQL debugging to add a Windows logon account as a sysadminBy default, the Windows administrator on the computer that is running SQL Server is the SQL Server system Administrator (sysadmin) on that

DateTime for SQL Server 2005, 2008The minimum value is: 1753-01-01 00:00:00Maximum value is: 9999-12-31 23:59:59.997This does not match Datetime.minvalue, DateTime.MaxValue in. NET, and System.Data.SqlTypes.SqlDateTime.MinValue, System.Data.SqlTypes.

6.  enabledAlwaysOnfunction6.1 in SQL01 Open SQL Server Configuration Manager, right-click SQL Server (MSSQLSERVER), select Properties650) this.width=650; "src=" http://s3.51cto.com/wyfs02/M02/73/2B/wKiom1X23VPB5h-DAAK8H1nsMEI801.jpg "title=" 1.png "

Recently encountered a problem:You want to restore SQL Server high-backup data to a lower version of SQL Server, but it is not possible to directly restore the database in SQL Server, so after a series of consulting to summarize the available

get one months of days: first to the date of the last day of the one month, by using the SQL Server Date function day () to get the "days" part of the date Number of days to get February 2008:Select Day (CAST (' 2008-03-01 ' as DateTime)-1) Get the

1.1: Add secondary data files Starting with SQL SERVER 2005, the database does not generate the NDF data file by default, generally there is a master data file (MDF) is enough, but some large databases, because of a lot of information, and query

When using the DTS Wizard for SQL Server 2012 (Import and export data/imports exported data), the following issues occur:No problem when the source data is used directly from the tableHowever, if the source data is a query, the fields will be mapped

Recently to contact the SQL Server stored procedures, before dealing with more complex logic process, look at the basic syntax of these SQL, I feel a little bit more complicated SQL statement, suddenly found that I was weak ah, so in some basic

SQL Server row to columnIn SQL Server 2005, Pivot is used to convert column values to column names (row to column), and in SQL Server 2000 there is no such keyword that can only be implemented with a case statement.--Create test database use

SQL Server triggersA trigger is a special type of stored procedure that differs from the stored procedure we described earlier. Triggers are triggered primarily by an event that is automatically invoked to execute. The stored procedure can be called

SQL server keyword description (text), SQL server The following describes the cross apply and outer apply keywords in sqlserver as follows: 1. cross apply and OUTER APPLY The MSDN explanation is as follows (my personal understanding is not clear

How to calculate the amount to be written off for multiple orders and the amount to be written off This article describes the entire process of calculating the amount of write-off for multiple orders. Run the database environment: SQL SERVER 2005,