If the duration is long, the cache may not be hit. Create split reader cost: the duration that is taken to open a file. If the duration is long, the metadata of the file does not hit the cache. If this occurs, the I/O overhead is high. Get result cost: the duration from ...
V$SQL_PLAN - A dynamic performance view that shows the execution plan for a SQL statement that has been compiled into a cursor and stored in the cursor cache. Under certain conditions the plan shown when using EXPLAIN PLAN can be different from the plan shown using V$SQL_PLAN. For example...
V$SQL_PLAN - A dynamic performance view that shows the execution plan for a SQL statement that has been compiled into a cursor and stored in the cursor cache. Under certain conditions the plan shown when using EXPLAIN PLAN can be different from the plan shown using V$SQL_PLAN. For example...
V$SQL_PLAN - A dynamic performance view that shows the execution plan for a SQL statement that has been compiled into a cursor and stored in the cursor cache. Under certain conditions the plan shown when using EXPLAIN PLAN can be different from the plan shown using V$SQL_PLAN. For exam...