sql server maintenance checklist

. beyond this range, consider maintenance to improve SQL performance:There are three ways to reduce fragmentation: Delete and recreate the clustered index. Re-creating the clustered index will redistribute the data so that the data page fills up. The fill level can be configured using the FILLFACTOR option in the Create INDEX. NBSP; fragments between 10% and 30%, reorganize the index,

, item number, order number, customer code, vendor code, and so on.3. Create a delete tag instead of physically deleting the data.For example, some large systems, an object may have dozens of fields. The usual practice is to accommodate all these fields with a table, but for system access efficiency, you can use two table to store them. The main table holds the key, most frequently accessed field properties, as far as possible, without using the variable width field, and storing additional, desc

that the ownership of the index key is unique, be sure to define the index as a unique index.4. When indexing on a table that often inserts operations, use the FILLFACTOR (fill factor) to reduce page splits, while increasing concurrency to reduce deadlocks. If you are indexing on a read-only table, you can set the FILLFACTOR to 1005. When selecting the index key, try to select those with small data types as keys, so that each index page can accommodate as many index keys and pointers as possibl

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

Studio, right-click, select new = "task; 　　 3. In the General page of the New Task dialog box, enter the task name and other details: 　　 4. On the steps page of the New Task dialog box, click New and enter the SQL command for the user database. 　　 5. On the Advanced page of the New Task Step dialog box, enter the name of the output file that reports the fragmentation analysis results: 　　 6. Click the OK button to return to the new Job dialog box; 7.

you build an index on a read-only table, you can set the FILLFACTOR to 100. (6) When selecting index keys, try to select those with small data types as keys so that each index page can hold as many key and pointers as possible, in this way, you can make a query must traverse the index page to minimize. Also, use integers as key values whenever possible, because it provides access faster than any data type. V. Maintenance of the Index As mentioned abo

This article focuses on SQL Server 2005 maintenance plans that cannot be removed (SQL Server maintnance plan can not delete), and the following is full text: A database to change the IP and host name, only the database instance modified, forget to maintain the plan to remov

Settings dialog box, select the time of retention, more than the retention time, the full backup record will be deleted. 19, double-click the "Clear Maintenance" box, pop Up the Settings dialog box, choose the time of retention, more than the retention time, the full backup file will be deleted, note the path to set the backup file, and the extension bak, not. bak. 20, after the setup is complete, this is the case. 21, the following two sub-plans,

On-premise SQL Server provides a maintenance plan to maintain SQL Server on a regular, scheduled basis. As a general rule, define SQL Server Agent jobs, and the

Tags: database Add delete Modify index foreign key columnSummary of MySQL, SQL Server, Oracle Three database maintenance indexes, foreign keys, field syntax1. mysql database 1) Create an indexCREATE INDEX index_name on table_name (column_list)CREATE UNIQUE INDEX index_name on table_name (column_list)To modify a table by adding an indexALTER TABLE table_name ADD I

Step one: See if maintenance is required to see if scan density/scan density is 100% DECLARE @table_id int SET @table_id=object_id (' table name ') DBCC SHOWCONTIG (@table_id) Step two: Refactor SQL Server database table indexes DBCC DBREINDEX (' table name ', PK_ index name, 100) Redo the first step, such as finding the scan

/1000 N ' Total time spent in MS ',total_worker_time/1000 N ' Total CPU time MS ',Total_physical_reads N ' Total number of physical reads ',Total_logical_reads/execution_count N ' Each logical read ',Total_logical_reads N ' Logical reads total number of times ',Total number of total_logical_writes N ' logical writes ',Execution_count N ' execution times ',Creation_time N ' statement compilation Time ',Last_execution_time N ' Last Execution time ',SUBSTRING (St.text, (QS.STATEMENT_START_OFFSET/2)

, @level0type = N ' SCHEMA ', @level0name = n ' dbo ', @l Evel1type = N ' TABLE ', @level1name = @tableName; END ELSE BEGIN--Modify EXEC [SYS]. [Sp_updateextendedproperty] @name = n ' ms_description ', @value = @tableDesc, @level0type = N ' SCHEMA ', @level0name = n ' dbo ', @level1type = N ' TABLE ', @level1name = @tableName; END GO 2, fill in paragraph description Select the table you want to set, right-click on "Design" 3

Maintenance statement DBCC dbreindex rebuilding one or more indexes of a table in the specified databaseDBCC dbrepair remove corrupted DatabaseDBCC indexdefrag sorts out clustered indexes and secondary index fragments of a specified table or view.DBCC shrinkdatabase: shrink the data file size in the specified databaseDBCC shrinkfile: compresses the specified data file or log file size of the relevant databaseDBCC updateusage reports and corrects inc

frommaster.dbo.sysprocessesWHEREBlocked> 0) 5 GoView CodeWhether there are uncommitted things:1 Select Spid,blocked,waittime,waittype,waitresource,p.dbid,cpu,physical_io,memusage,open_tran 2 , Status,login_time,last_batch,hostname,program_name,hostprocess,loginame,cmd,text 3 from cross apply Sys.dm_exec_sql_text (p.sql_handle) s 4 where0 5GoView CodeDeadlock:1 --drop table #deadlock2 3 CREATE TABLE#deadlock (logdateDATETIME, ProcessInfoVARCHAR( -),Text VARCHAR( -)) 4 Go 5 INSE

),@pdname nvarchar(Ten),@salemoney decimal( -,2) --extracts the first record and assigns the extracted variable to the corresponding variable Fetch Next fromC_ Sales Table _ Date into @pdno,@pdname,@salemoney --use the global variable @ @fetch_status whether the value is 0 as a loop to determine whether to extract records, such as extracted to the output extracted in the loop body value, --then continue to extract the data using the FETCH command until the @ @FETCH_STATUS value is not 0 w

Tags: statistics autostats auto_update_statisticsSelection of SQL Server statistics Maintenance policyProblem Description:After archiving a tens of millions of tables in an OLTP system, the business application receives a timeout alert when the source table data is deleted in batches, as follows:V1.1.1.1: ****process-querytransactionfor****: 23075129 Timeout expi

Using a maintenance plan for SQL Server 2008 enables you to automatically back up the database and automatically remove the functionality of outdated backups.First, the environmentOs:microsoft Windows Server 2003 R2Soft:microsoft SQL Ser