sql server query analyzer

Original: SQL Server 2012:SQL Server architecture--The life cycle of a query (part 3rd) (end)A simple update queryYou should now know the query life cycle of reading only the data, and next determine what happens when you need to

files/Microsoft SQL Server/mssql10.mssqlserver/MSSQL/data/mydb. mdf d:/program files/Microsoft SQL Server/mssql10.mssqlserver/MSSQL/data/mydb_log.ldf (2 rows affected) */-- 3.2 mobile path use [Master] Go -- 3.2.1 disable all processes declare @ STR varchar (500); Set @ STR = ''; select @ STR = @ STR + 'Kill '+ rtrim

assumption Dcsii (2) Point browse Access Select Indexing Service run Directory form (3) Select the index run directory that you created earlier (anywhere) (4) Click OK to complete this operation You need to add a catalog to a catalog after you create a record (1) Right-click to select the catalog you just created (2) Select New->directory (new directory) New Index Directory (1) Click Browse to enter the directory selection page (2) Select the directory where you want to search for full-text fil

Original: Set STATISTICS io and set STATISTICS time in SQL Server query performance optimizationIn recent times, has been exploring the SQL Server query performance issues, of course, also aimless search for a lot of information,

SELECT type,--clerk type sum (virtual_memory_reserved_kb) as vm_reserved_kb,--reserved Memory sum (VIRTUAL_MEMORY_COMMITTED_KB) as VM_COMMITTED_KB,--committed memory sum (awe_allocated_kb) as awe_allocated_kb,--the memory sum (shared_memory_reserved_kb) as SM used when opening awe _RESERVED_KB,--shared reserved memory sum (shared_memory_committed_kb) as sm_committed_kb,--shared commit memory sum (single_pages_kb) as SINLGEPAGE_KB,--Buffer pool stolen Memory sum (multi_pages_kb) as multipage_kb--

In the process of paging data using temporary tables, it is found that the query statement conditions are passed through the stored procedure parameters. The parameter conditions cannot be directly used after the SQL where statements are added. There is only one solution to this problem, it is to concatenate SQL statements and conditions into an

Author: skateTime: 2012/02/17 MySQL SQL Performance Analyzer The SQL Performance Analyzer of MySQL is mainly used to display the usage of various resources during SQL Execution. Analyzer can better displayPoor

row within the result set partition. The rank of a row is a number of rows before the line involved. --like here I sort by price, take out the most expensive items in each category from top to bottom SELECT * from ( SELECTI.price,i.commodityname,c.classname,rank () Over(Partition byC.classidOrder byI.priceDESC) Rank2 fromCommodityinfo iINNER JOINCommodityclass C onI.commodityclass=C.classid) RWHERERank22; Under SQL

"'+ @ Columns + 'Union all' + @ Data +'" queryout '+ @ FilePath +'-c-t' PRINT @ cmd Exec sys. xp_cmdshell @ cmd EXEC sp_configure 'xp _ Your shell', 0 RECONFIGURE EXEC ('drop table' + @ tmp) END TRY BEGIN CATCH -- Handle exceptions IF OBJECT_ID ('tempdb .. '+ @ tmp) IS NOT NULL EXEC ('drop table' + @ tmp) EXEC sp_configure 'xp _ Your shell', 0 RECONFIGURE SELECT ERROR_MESSAGE () END CATCH Do not worry about using it. This version is based on xp_cmdshell. To create a file, ensure that your users

SELECT ERROR_MESSAGE () END CATCH Do not worry about using it. This version is based on xp_cmdshell. To create a file, ensure that your users have the permission to manage the file, generally, the simple method is to set the SQL server startup user as a local system user. Now let's take a look: -- Query the server o

Label: SQL Server Query optimization method The reasons for the slow query are many, the following are common 1, no index or no index (this is the most common problem of slow query, is the defect of program design)2, I/O throughput is small, forming a bottleneck effect3. No

First SQL statementSelect CompanyName GSMC,ZB Zhibiao from Left Join T_companycode on T_GSNDZB.GSBH=T_companycode.companyidQuery Result:A second SQL statementSELECT min(CompanyName) GSMC,cast(round(sum(T_xstj.hsje)/10000,2) asNumeric -,2)) Ndje fromT_xstj Left JoinT_companycode onT_companycode.companyid=T_XSTJ.GSBHwhere DateDiff( YearSjgetdate())=0 Group byGsbhQuery Result:Statements that are merged int

IntroductionIn SQL Server, an index is an enhanced presence, which means that even without an index, SQL Server can still implement its due functionality. However, indexes can greatly improve query performance in most cases, especially in OLAP. To fully understand the concep

Usage scenarios:For example, you need to query all student numbers with scores greater than 95, separated by commas into a string, from the Student score table.To prepare the test data:CREATE TABLE score (ID int,score int)INSERT into score values (1,90)INSERT into score values (2,96)INSERT into score values (3,99)It is now necessary to query the result string "2,,3" with a single statement.The

Indexing Service and SQL database:Execute the following stored procedure in SQL Query Analyzer (SQL Analyer)EXEC sp_addlinkedserver Dcs,--Connect the name of the server to the back of the que