Create Jira IssueShare LinkOptimize another SQL queryInvite team members | Query Optimization Report(original query) The optimal indexes for this query are ... Copy By default, the database cannot use indexes on columns used as function parameters, e.g. MONTH(date) = 5. ...
This means they may be selected by the query optimizer and, if necessary, specified in index hints. Target The target or targets is the new index (or heap) or a set of new indexes that is being created or rebuilt. User insert, update, and delete operations to the source are applied ...
LiteralOptimizerHint LiteralOptionValue LiteralPayloadOption LiteralPrincipalOption LiteralRange LiteralReplicaOption LiteralSessionOption LiteralStatisticsOption LiteralTableHint LiteralType LocationOption LockEscalationMethod LockEscalationTableOption LoginTypePayloadOption LowPriorityLockWaitAbortAfterWaitOption ...
OptimizerDecision integer Project optimizer decision number Planner decision PlannerDecision integer Project planner decision number Project type ProjectType integer The type of the project Project name Name string The name of the project Project identifier ProjectIdentifier string Project identifier...
我们首先通过DBA_OBJECTS创建了一张有6万多条记录的表xuji_test,然后将这张表的并行度设置为20,然后做一个COUNT(*)操作,SQL执行后,从V$SQLAREA找到这条SQL的SQL_ID,然后查看执行计划: SQL> select * from table(dbms_xplan.display_cursor('8sj2h9nsq7s4h',null,'ADVANCED')); ...
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If the optimizer decides how to run your query, how do you go about making it faster?! Ryan McGuireGratisography Ask many experts and they'll tell you to look at the statement'sexecution plan. But what is this plan, how do you get it, and how does it help you make your SQL quicker...
This means they may be selected by the query optimizer and, if necessary, specified in index hints. Target The target or targets is the new index (or heap) or a set of new indexes that is being created or rebuilt. User insert, update, and delete operations to the source are applied ...
If the optimizer decides how to run your query, how do you go about making it faster?! Ryan McGuireGratisography Ask many experts and they'll tell you to look at the statement'sexecution plan. But what is this plan, how do you get it, and how does it help you make your SQL quicker...
EverSQL is an online SQL query optimizer for developers and database administrators. EverSQL will automatically optimize MySQL & PostgreSQL, MariaDB, PerconaDB queries and suggest the optimal indexes to boost your query and database performance. 30,000 p