SQL Developer 中 EXPLAIN PLAN 和 AUTOTRACE 之间的基本区别是什么。有人可以详细说明吗?
这是我试图找出 Autotrace 和 Explain Plan 之间差异的查询。
SELECT name, address, latest_in
FROM ( SELECT name, address, latest_in
ROW_NUMBER() OVER (PARTITION BY name ORDER BY address DESC) AS rowrank
FROM avrajit
)
WHERE rowrank <> 1 AND rowrank > 3;
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