SQL Server

To view the cache plan SQL that SQL Server has used:SELECTObjType as 'Cached Object Type',COUNT(*) as 'Number of plans',SUM(CAST(size_in_bytes as BIGINT))/1024x768/1024x768 as 'Plan Cache Size (MB)',AVG(usecounts) as 'AVG Use Count' fromSys.dm_exec_

1. Final Solution about "cannot get exclusive access to the database because the database is in use"Key SQL statements:ALTER DATABASE [datebase] SET OFFLINE with ROLLBACK IMMEDIATERun out and thenALTER DATABASE [dbname] set onlinePS. Resolve this

Data in SQL Server already has coordinate information (LAT,LNG) Gets the data from SQL in the Formload event and stores it in the dataset. //defining SqlConnection objects at the top//Public static string constr = "server= (local);d

Understand the last one of the introduction of the ADO, we can come to the database for the basic operations such as pruning and checking! The following is a concrete implementation of each operation.First define the database connection object and

?1. View the version of the databaseSELECT @ @version2. View the machine operating system parameters of the databaseEXEC master. xp_msverTo view database-initiated parameterssp_configureTo view the database startup timeSelect CONVERT (varchar (),

Rounding in SQL usually has two ways: round and cast (... as decimal ()).The personal advice is to use the cast method:Mode 1:After testing, the same can be rounded, but round the following example 1 will be an error,Example 1:select round (0.996123,

Web SQL Server LearningDatabase First Impressions: Desktop--web server--database server**Several large databases: SQL Server, Oracle database, DB2, MYSQL, MongoDB ..... (SQL Structured Query Language)Install software: SQL Server Management

14. Open the iSCSI initiator on SQL01 and SQL02 to connect the created iSCSI shared storage, enter the IP address of the iSCSI shared storage server on the iSCSI initiator, low-level fast connection;650) this.width=650; "src="

Full table Scan unordered scan table scan/unordered clustered Index ScanEither a table scan or an unordered clustered index scan continuously scans all the data pages in the table.Table ScanAn unordered full table scan on the heap is called a table

Pros: Allows data to be read (without blocking other transactions) and update data at a later time, ensuring that data has not been changed since the last time the data was readWhen you use Updlock to read a record, you can add an update lock to the

declare @low int, @unit varchar (), @val decimal (18,4)Set @unit = ' KB 'Set @val = case when @unit = ' KB ' then 1024x768 when @unit = ' MB ' then 1024*1024 else 1 endSelect @low = D.low from Master.dbo.spt_values dwhere D.number = 1 and D.type = '

1. SQL SERVER InstallFree to try theDays. The latest is version 2014.2. Attach, Detach can add or remove existing database files. The format of the database file is:. mdfSuffix3. The E-r diagram can be established on the client. Primary note is the

Three ways that stored procedures in SQL Server are returned (including the creation of stored procedures, calls in stored procedures, methods called in VS)There are three types of stored procedures to return:1. Return numeric data with return2.

1. SQL Server Job creation: (SQL Server Agent-job) right mouse button, new job.2. General Options: Define the job name, and description information.3: "Step" option: New step4: Define the step name, set the corresponding database, and write the

1.INSERT into SELECT statementThe statement form is:Insert into Table2 (field1,field2,...) Select Value1,value2,... from Table1 [where column =value][] for optional contentRequires that the target table Table2 must exist, because the target table

Sql2005 has a function isnumeric (expression) function: Returns 1 when expression is a number, otherwise returns 0. This is just a rookie-level solution, and most of the situation is more effective.egSelect IsNumeric ('123'-- The result is 1However,

1 /*2 LANDV3 function: Different machine backup4 Development Date: July 2, 2016 15:27:085 6 */7 if exists(Select * fromDbo.sysobjectswhereId= object_id(N'[dbo]. [P_backupdb]') and ObjectProperty(ID, N'isprocedure')= 1) 8 Drop procedure

1. SectionA section (extent) is a basic storage unit used to allocate space for tables and indexes. It consists of 8 contiguous 64KB data pages.The main points of the concept of allocating space based on segments rather than actual use of space:

SQL Server process deadlock closure method, SQL Server process 1. First, we need to determine which user has locked the table. -- Query the lock table select request_session_id spid, OBJECT_NAME (resource_associated_entity_id) tableName from sys.

Three methods for obtaining SQL Server Stored Procedure definitions: SQL Server Stored Procedure Concept of Stored Procedure Stored Procedure is a set of SQL statements for specific functions. Compiled and stored in the database. You can specify the