destiny 2 server maintenance

. Columns accessed by range, such as Pri_order > Pri_order 3. Columns used in GROUP by or order by. 4. Columns that are not frequently modified. 5, the columns used in the connection operation. Use of non-clustered index (nonclustered indexes) The indexes that SQL Server establishes by default are nonclustered indexes, and because non-clustered indexes do not rearrange the data in the table, they store indexed column values for each row and point to

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 INDEX index_name (column_list)ALTER TABLE tabl

options Minimum--Minimum value for configuration options Maximum--Maximum value of configuration options Value_in_use--The running value currently used by the configuration option Description--Description of configuration options Is_dynamic--equals 1 indicates a variable that needs to execute the reconfiguration statement to take effect Is_anvanced--equals 1 indicates a variable that requires the show advanced statement to take effect --You can also use sp_configure to

The most comprehensive installation and maintenance guide for IBMSystemx3650 server in history [register an award-winning IBM backpack]-Linux Enterprise Application-Linux server application information. The following is a detailed description. The most comprehensive IBM System x3650 installation and maintenance guide

internal fragmentation. Regardless of the effect of the fill factor factor, when index is established, the index structure is logically contiguous, and each index page is stored full and fully utilized. The delete operation causes the index page to be idle; in the External fragmentation example, page split at the insert operation also causes the index page to appear idle.Severe internal fragmentation, causing the index page to occupy much larger storage space than is actually required. The inde

Article title: Linux security strategy server and network equipment maintenance. Linux is a technology channel of the IT lab in China. Includes basic categories such as desktop applications, Linux system management, kernel research, embedded systems, and open source. At present, many small and medium users are constantly updating or upgrading their networks due to business development, which leads to great

. After the certificate is imported, access is successful with the CAS client! Returns the protected address after successful login. Note: If the CAS client does not import the certificate, the CAS client program will end the execution with a certificate exception. The contents of the CAS client will be included in subsequent articles. 1.2 configuration when the CAS client type is HTTPS Application Follow up on subsequent articles 2. Assume that the

Start a server, is exactly the cloud host, the environment inside is pre-configured, but in the configuration planning tasks, but found that mssql2005 plan backup can not do, will error: Copy Code code as follows: SQL Server Create Maintenance plan failed (SQL server:14234 error) automatic backup databas

The maintenance project is only for servers on the Windows operating system platform. The above services are related to the installation of software, copyright issues by the customer to resolve themselves. Modify and write only the part of the code that is involved in the code of the Customer website, and do not modify and write other parts of the code of the Customer website. Windows Server Security

DisassemblyThe simplest maintenance of the server hardware system is to modify the server and add or upgrade some components. To this end, this topic begins with server disassembly.As the price of server accessories gradually decreases, it is not very cost-effective to work

Name ' DECLARE cList CURSOR for SELECT * from #Frag OPEN cList FETCH NEXT from cList into @DBName, @TableName, @SchemaName , @IndexName, @PctFrag while @ @FETCH_STATUS = 0 begin IF @PctFrag between 20.0 and 40.0 begin SET @Defrag = N ' ALTER INDEX ' + @IndexName + ' on ' + @DBName + '. ' + @SchemaName + '. ' + @TableName + ' REORGANIZE ' EXEC sp_exe Cutesql @Defrag PRINT ' Reorganize index: ' + @DBName + '. ' + @SchemaName + '. ' + @TableName + '. ' + @IndexN Ame END ELSE IF @PctFrag > 40.0 BE

/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/

table with a data volume less than 500 rows, when the first field data of the statistics cumulative change is greater than 500.(3) For a table with a data volume greater than 500 rows, when the first field data of the statistic has a cumulative change of more than + (20%x table data total).So for larger tables, only 1/5 of the data has changed, and SQL Server will not be going to re-calculate the statistics.2