How To
Summary
Db2 はアプリケーションから SQL ステートメントを受け取ると、SQL コンパイラーが実行計画を作成し、実行可能オブジェクト (セクション) を作成してからセクションをランタイムで実行します。
SQL のパフォーマンスが期待通りでない場合や、SQL がアクセスする表や索引を確認したい場合、結合順序や結合方式を確認したい場合などは、Explain 機能を使用して実行計画を取得できます。
Document Location
Worldwide
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Document Information
Modified date:
30 April 2025
UID
ibm16497739