sql server maintenance plan wizard

brought by ParameterizationThis is how to deal with @p_CustomerId this parameter, directly @p_customerid in the form of a string in the SQL statement,In this case, it is equivalent to the ad hoc query, not by the parameterized way to CustomerID This query condition field assignmentIF (@p_CustomerId is not NULL)SET @sqlcommand = CONCAT (@sqlcommand, ' and customerid= ', @p_CustomerId)So that when you execute the stored procedure again,When brought int

ObjectiveAn earlier article introduced indexes to improve query performance in a database, which is just the beginning. Perhaps assuming a lack of proper maintenance, index the performance of your previously established and even become a drag-and-drop database of accomplices.Looking for fragmentsThe elimination of fragmentation index maintenance is probably the most common task, and is to use REORGANIZE to

1. View job History Select TOP [instance_id], [ job_id] , [step_id] , [step_name] , [sql_message_id] , [Sql_severity] , [message] , [run_status] , [run_date] , [run_time] , [run_duration] , [ Operator_id_emailed] , [operator_id_netsent] , [operator_id_paged] , [retries_attempted] , [ Server] from [msdb].[ DBO]. [Sysjobhistory] 2. Review the

The parameter sniff problem is to reuse the execution plan generated by other parameters, which causes the current parameter to adopt a phenomenon that is not optimized for the execution plan. Presumably the students who are familiar with the data should know that the most typical problem of producing parameter sniff is to use parameterized SQL (or parameterized

Tags: find return cache response free temporary analysis CCache cannotSQL Server submits a user-submitted DML statement that, through a series of optimizations, produces a scenario that can be identified and efficiently "responded" by SQL Server using the Ctrl+m (actual execution plan) in Ctrl+l (estimated execution

Label:Original: Understanding of SQL Server Execution planTo understand the execution plan, you have to understand it, the various nouns. Since I don't know much about it. This article is intended as a write-only, do not understand the understand before writing. At the beginning, it is important to note that the first time you look at the execution

=pc.index_idWHEREPs.avg_fragmentation_in_percent> Ten andIx.name is not NULL Execution Result:Execute the generated SQL statement:ALTER INDEX [PK__GD_MOVEB__1489BC61D65FF2AA] on [dbo].[Gd_movebarcode_detail]REBUILDGoALTER INDEX [Pk_branchstylealldata] on [dbo].[Branchstylealldata]REORGANIZEGoALTER INDEX [pk_pubbranchlocation_1] on [dbo].[pubbranchlocation]REBUILDGo5. Rebuilding the entire library's statisticsExec sp_updatestats;6. View

this point, then execute SELECT * To see.INDEX person.ix_id　　There is no clustered index at this time, so only table scans are used.5. Bookmark SearchPrevious learning about indexing we already know that when not overwriting and including all of the required columns in a nonclustered index, SQL Server chooses to directly perform a clustered index scan to get the data, or to go to a nonclustered index to fi

SQL Server Query Execution Plan AnalysisSource: http://www.sql-server-performance.com/tips/query_execution_plan_analysis_p1.aspxWhen you need to analyze the performance of a query, one of the best ways to see the execution plan for that query. The execution

Optimizing queries can be a common thing for SQL Server optimizations. Since the optimization of database is a wide topic in itself, this article only talks about how to understand SQL Server query plan when optimizing query. After all, my knowledge of

Optimizing queries can be a common thing for SQL Server optimizations. Since the optimization of database is a wide topic in itself, this article only talks about how to understand SQL Server query plan when optimizing query. After all, my knowledge of

This article belongs to the managing SQL Server AlwaysOn series articleObjective:The previous series has covered SQL Server AlwaysOn knowledge points, installation demos, and considerations. But this is not the end, but more is the starting point. It's like you can't give birth to a child, you have to keep it (manageme

The SQL Server execution plan teaches me how to create indexes? I am not very familiar with the index, so the test results are of no value, or even some people are misleading. I am sorry here, but where did I fall. Application scenarios Or use the Product table as an example. The table structure is as follows: There is such a business scenario: to obtain a list

Read Catalogue Begin How SQL Server looks for records SQL Server Join method More specific execution procedures Index statistics: The choice of the query plan is based on Optimizing View Queries Recommended Reading-MSDN Articles For

netcom, in the management-Database Mail set its good, want to have SMS prompt, need 136 mobile mailbox, in the settings can be opened. To send messages automatically, you need to have the alert system-mail profile enabled in the Mail agent properties.30. The Messenger service enables the database to be automatically net send to another computer. Then in cmd you can net send 192.168.1.5 Fdfas. The operator automatically sends information to the operator when the job is completed when it is autom

% 870 (4688 lines) Stored Procedures Proc: @ProductID = 870 1305 17 928 17 Is KB 26% 870 (4688 lines) In-stored procedure declaration Proc:where P.productid [email protected] 1305 18 984 18 Is KB 24% 897 (2 lines) Instant Query where P.productid =897 20 10 792 10 Is KB 13% 897 (2 lines) Instant paramete