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...
evaluated only once for each set of differentvalues of the variables from its outer context. For UNCACHEABLE SUBQUERY, thesubquery is re-evaluated for each row of the outer context. Cacheability ofsubqueries is subject to the restrictions detailed in Section 7.9.3.1, “How theQuery Cache ...
Indeed, arctic foxes cache large quantities of goose eggs [26], and acquiring and storing them far from territory edges could decrease pilfering by neighbours [56]. This mechanism might reinforce edges avoidance by active foxes. The selection of den proximity by reproductive foxes confirms that ...
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...