SQL 中的过滤功能相比检索条件性能较差,建议尽可能地使用检索条件满足数据过滤需求,例如使用status:>400 | select count(*) as logCounts代替* | select count(*) as logCounts where status>400以更快地获得统计结果。 WHERE 中不能使用 AS 别名,例如level:* | select level as log_level where log_level=...
BackupRestoreFileInfo BackupRestoreItemKind BackupRestoreMasterKeyStatementBase BackupServiceMasterKeyStatement BackupStatement BackupTransactionLogStatement BackwardsCompatibleDropIndexClause BeginConversationTimerStatement BeginDialogStatement BeginEndAtomicBlockStatement BeginEndBlockStatement BeginTransactionState...
From the Editor: Downtime is a Four-Letter Word Toolbox: New Products for IT Pros Utility Spotlight: File Server Migration Toolkit SQL Q&A: Running in RAM, Agent Jobs, and More Hey, Scripting Guy!: Setting Up Outlook E-Mail Signatures ...
SQL local string l_MaxChar; local integerl_Result,l_Length; system 9600, table SOP_HDR_WORK, l_MaxChar, l_Result; if empty('EndLocation Code') or filled('EndLocation Code') then fill 'EndLocation Code'; l_Length = length('EndLocation Code'); clear 'EndLocation Cod...
compare(__LINE__,where(bar.beta =="SQL")," WHERE (tab_bar.beta='SQL')");return0; } 开发者ID:Erroneous1,项目名称:sqlpp11,代码行数:21,代码来源:Where.cpp 示例9: where ▲点赞 1▼ /*virtual*/intgui_filterbar_c::full_search_s::iterate(intpass) ...
2000002- FAQ: SAP HANA SQL Optimization 20. How does the EXPLAIN functionality work? 🧩 Plan Visualizer (PlanViz)- SAP HANA studio To help you understand and analyze the execution plan of an SQL statement, you can generate a graphical view of the plan. Plan Visualizer is a feature of th...
* @throws IOException if loading the config file failed */protectedSqlSessionFactorybuildSqlSessionFactory()throws IOException{// ...if(!isEmpty(this.mapperLocations)){for(Resource mapperLocation:this.mapperLocations){if(mapperLocation==null){continue;}try{XMLMapperBuilder xmlMapperBuilder=newXMLMapperBu...
Here are explanations for these warnings: • gpg: no ultimately trusted keys found: This means that the specific key is not "ultimately trusted" by you or your web of trust, which is okay for the purposes of verifying file signatures. • WARNING: This key is not certified with a ...
It worth to mention that you can set the retention period for this short-term log storage using the log_retention_period parameter. The default value is 3 days; the maximum value is 7 days. The short-term storage location can hold up to 1 GB of log ...
Given that user profile folder is likely not the best location to store database files, we advise developers creating databases to always specify the location for the database files, like in this T-SQL example:create database foo on (name='foo', filename='c:\DBs\foo.mdf')...