sql stored procedure performance tuning

Author: liigo Date: 2010/8/25 Original: http://blog.csdn.net/liigo/archive/2010/08/24/5834450.aspx Reprinted please indicate the source: http://blog.csdn.net/liigo Microsoft SQL Server database stored procedures, according to their input and output data, can be divided into the following general situations or their combination: no input, one or more input parameters, no output, return a value directly. One

Events_statements_history_long tables, you can see the difference between the two, as shown below:CREATE PROCEDURE Sp_testBEGININSERT into T1 (name) VALUES (' Abafewefwefw '), (' abafewefwefw11111 ');Delete from T1 limit 1;ENDFor SQL statements embedded in stored procedures, the object_type and object_name columns indicate the name of the object. For the

◆ Advantages:The execution speed is faster. The stored procedure is compiled only when it is created. Generally, the SQL statement is compiled every time it is executed. Therefore, the execution speed of stored procedures is faster.When stored procedures are used to process

increase simultaneous throughput Determining income Determining costs monitoring tasks for common bottlenecks Monitor memory consumption Monitor thread and CPU usage Monitor HDD IO Monitor low performance queries Monitoring stored procedures, SQL, and user activity Monitor current locks and user interactions Bu

Tags: syntax server side nvarchar No name pre list tle addA stored procedure (stored procedure) is a set of SQL statements designed to accomplish a particular function, compiled and stored in a server-side database, which can be u

task can do file autogrow action, other tasks must wait.(4), in some special cases, it is possible that SQL Server itself did not handle the concurrency synchronization, the use of a more optimized algorithm, so that users are more likely to encounter the wait, some patches have fixed such problems.The general wait is derived from other problems, first of all to check whether SQL Server is running healthil

XML to a text file, and to prevent reuse of them later if needed.650) this.width=650; "title=" clip_image003 "style=" Border-top:0px;border-right:0px;border-bottom:0px;border-left : 0px; "alt=" clip_image003 "src=" http://s3.51cto.com/wyfs02/M00/56/A6/wKiom1SKYBmxVxakAAKuRSCe5_s460.jpg "border=" 0 "height=" 536 "/>Next, continue to start the trace in SQL Server Performance Analyzer. Although most

SQL Server traverses the database file to find all stored procedures that use a table/stored procedure.1 CREATE ProcedureSp_getproc2 @Object_Name Varchar( -) 3 as 4 SetNocount on 5 6 DECLARE @tmptable TABLE 7 ( 8Idint IDENTITY(1,1), 9 [DataBase] Varchar( -), TenNameVarchar( -), OneTypeVarc

procedure would be a times faster.There is no difference if you execute this procedure from the Management Studio with NOCOUNT OFF or onMY god!Seeing is believingBasically, they conclude that using NOCOUNT can reduce the transmission of the network. When we set NOCOUNT on, the stored procedure executes every

Comparison of paging stored procedures and performance of five types of SQL Server, SQL stored procedures In SQL Server database operations, we often use stored procedures to implement

indexes are fully utilized during execution. normally, if the index is fully utilized, the name of the execution step will be index seek. note: When analyzing Io, You need to execute the set statistics Io on statement to open the IO analysis.4. Based on the analysis results, add the corresponding indexes and reduce the I/O later.5. for stored procedures, the event viewer should be used to further filter their information. If spid is used (which can b

Tags: des style blog io color ar sp div onC # calls SQL with an output parameter in the stored procedure, and the type is a character type when you must specify the length of the parameter. Otherwise the obtained result is always only the first character. I was for this reason, tossing for a long time. In this record, for everyone to reference later!For example:C

SQL query all stored procedures (Stored Procedure) Information_schema.routines View Requirements: Microsoft SQL Server 2000 or later You can use the information_schema.routines view to retrieve information about stored procedur