SQL>set timing on --显示执行时间 SQL>set autorace on �C显示执行计划 SQL>set autorace on �C显示执行计划 SQL>set autotrace traceonly �C只显示执行计划即不显示查询出来的数据 设置完毕后执行SQL语句就会显示执行计划信息及相应的统计信息(需要设置显示该选项) SQL> select nvl(sum(t.taxdue), 0...
If you want to query execution plans with higher readability, we recommend that you upgrade your Hologres instance to V1.3.4x or later. EXPLAIN Syntax You can execute the following EXPLAIN statement to query the execution plan that is estimated by the QO: EXPLAIN <sql>; Example In this ...
Optional title for plan: Paste output of EXPLAIN (ANALYZE, BUFFERS, ...) your query; here: Optionally paste your query here: Optionally add some comments (such as table definitions) here: I want this plan to be visible on the history page. I want this plan to be obfuscated before ...
QSM-01030 materialized view, string, has PL/SQL functions in ENFORCED integrity mode Cause: A materialized view with PL/SQL functions in its definition cannot be used for query rewrite when query rewrite integrity is set to ENFORCED. Action: Consider running the query in STALE TOLERATED mode. ...
In this example, my_decorator is a function that takes another function func as an argument and returns a new function wrapper that wraps func with some additional behavior. The resulting wrapper function can be called just like func, but with the added behavior provided by my_decorator. Using...