{"categories":["DB2"],"provider_name":"Hatena Blog","url":"https://unageanu.hatenablog.com/entry/20081104/1225798004","blog_url":"https://unageanu.hatenablog.com/","description":"SQL\u306e\u30a2\u30af\u30bb\u30b9\u30fb\u30d7\u30e9\u30f3\u3092\u78ba\u8a8d\u3059\u308b\u624b\u9806\u306e\u30e1\u30e2\u3067\u3059\u3002\u3061\u3087\u3063\u3068\u3055\u308f\u3063\u3066\u307f\u305f\u3060\u3051\u306e\u7c21\u5358\u306a\u30e1\u30e2\u306a\u306e\u3067\u8a73\u3057\u304f\u306f\u4ee5\u4e0b\u3092\u53c2\u7167\u3002 DB2 \u30ea\u30d5\u30a1\u30ec\u30f3\u30b9 - SQL Explain \u6a5f\u80fd @IT SQL\u3092\u5206\u6790\u3059\u308b\u9ad8\u5ea6\u306a\u30c6\u30af\u30cb\u30c3\u30af DB2\u9006\u5f15\u304d\u30ea\u30d5\u30a1\u30ec\u30f3\u30b9 - EXPLAIN\u8868\u3092\u4f5c\u6210\u3059\u308b\u306b\u306f \u6982\u8981 EXPLAIN\u8868\u3092\u4f5c\u6210\u3059\u308b \u300cexplain all for \u300d\u3068\u3044\u3046SQL\u6587\u3092\u5b9f\u884c\u3059\u308b\u3002 \u300cdb2exfmt\u300d\u30b3\u30de\u30f3\u30c9\u3092\u4f7f\u3063\u3066\u30a2\u30af\u30bb\u30b9\u30d7\u30e9\u30f3\u3092\u51fa\u529b\u3059\u308b\u3002 1.EXPLAIN\u8868\u3092\u4f5c\u6210\u3059\u308b \u4ee5\u4e0b\u306e\u30b3\u30de\u30f3\u30c9\u3092\u5b9f\u884c\u3057\u3066EXPLAIN\u8868\u3092\u4f5c\u6210\u3057\u307e\u3059\u3002 $ db2 -tvf <DB2\u306e\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u30c7\u30a3\u30ec\u30af\u30c8\u30ea \u4f8b) /opt/i\u2026","width":"100%","title":" SQL\u306e\u30a2\u30af\u30bb\u30b9\u30fb\u30d7\u30e9\u30f3\u3092\u78ba\u8a8d\u3059\u308b","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Funageanu.hatenablog.com%2Fentry%2F20081104%2F1225798004\" title=\" SQL\u306e\u30a2\u30af\u30bb\u30b9\u30fb\u30d7\u30e9\u30f3\u3092\u78ba\u8a8d\u3059\u308b - \u3046\u306a\u306e\u65e5\u8a18\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","height":"190","blog_title":"\u3046\u306a\u306e\u65e5\u8a18","author_name":"unageanu","type":"rich","image_url":null,"author_url":"https://blog.hatena.ne.jp/unageanu/","version":"1.0","provider_url":"https://hatena.blog","published":"2008-11-04 20:26:44"}