{"id":2288,"date":"2019-07-22T07:58:27","date_gmt":"2019-07-21T22:58:27","guid":{"rendered":"https:\/\/133.242.23.245\/blog\/?p=2288"},"modified":"2019-07-22T07:58:29","modified_gmt":"2019-07-21T22:58:29","slug":"oracle-database%e3%81%ae%e7%8b%ac%e8%87%aa%e9%96%a2%e6%95%b0%e3%81%ab%e3%81%a4%e3%81%84%e3%81%a6","status":"publish","type":"post","link":"https:\/\/www.kara-kuri.jp\/blog\/?p=2288","title":{"rendered":"Oracle Database\u306e\u72ec\u81ea\u95a2\u6570\u306b\u3064\u3044\u3066"},"content":{"rendered":"\n\u3053\u3093\u306b\u3061\u306f\u3002\u5148\u65e5\u4ed5\u4e8b\u3067\u3001\u30bd\u30fc\u30b9\u30b3\u30fc\u30c9\u306eOracle Database\u306eSQL\u6587\u3092\u898b\u3066\u3044\u308b\u3068DECODE\u95a2\u6570\u304c\u4f7f\u7528\u3055\u308c\u3066\u304a\u308a\u3001\u4e0d\u52c9\u5f37\u3068\u3044\u3046\u3053\u3068\u3082\u3042\u308b\u306e\u3067\u3059\u304c\u3001\u8abf\u3079\u305f\u3068\u3053\u308dOracle\u72ec\u81ea\u306eCase\u6587\u4e92\u63db\u306e\u95a2\u6570\u3068\u3044\u3046\u3053\u3068\u304c\u5206\u304b\u308a\u307e\u3057\u305f\u3002\u305d\u3053\u3067\u3075\u3068Oracle\u306e\u72ec\u81ea\u95a2\u6570\u304c\u4ed6\u306b\u3082\u3042\u308b\u306e\u304b\u8abf\u3079\u3066\u307f\u305f\u3044\u3068\u601d\u3044\u3001\u4ee5\u4e0b\u306b\u66f8\u304d\u9023\u306d\u3066\u307f\u307e\u3057\u305f\u3002\n\n\n\n\u307e\u305aDECODE\u95a2\u6570\u3067\u3059\u3002SQL\u4f8b\u6587\u306f\u300cselect decode(num, 1, a, 2, b, &#8230; , &#8216;null&#8217;) from XXX;\u300d\u2192 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\u898b\u305f\u76ee\u306e\u901a\u308a\u3067multi\u306e\u65b9\u306fstring\u306b\u542b\u307e\u308c\u308b\u30b7\u30f3\u30b0\u30eb\u30d0\u30a4\u30c8\u6587\u5b57\u5217\u3092\u30de\u30eb\u30c1\u30d0\u30a4\u30c8\u6587\u5b57\u5217\u306b\u3001single\u306e\u65b9\u306fstring\u306b\u542b\u307e\u308c\u308b\u30de\u30eb\u30c1\u30d0\u30a4\u30c8\u6587\u5b57\u5217\u3092\u30b7\u30f3\u30b0\u30eb\u30d0\u30a4\u30c8\u6587\u5b57\u5217\u3078\u5909\u63db\u3059\u308b\u3068\u3044\u3046\u3082\u306e\u3067\u3059\u3002\u4f46\u3057\u3001\u6587\u5b57\u3084\u6587\u5b57\u30b3\u30fc\u30c9\u306e\u7a2e\u985e\u306b\u3088\u3063\u3066\u306f\u5909\u63db\u4e0d\u53ef\u3067\u3059\u3002\uff08\u534a\u89d2\u30ab\u30ca\u3084AL16UTF16\u306a\u3069\uff09\n\n\n\n \u6b21\u306bSUBSTRB\u3067\u3059\u3002SQL\u4f8b\u6587\u306f\u300csubstrb(string<strong>,<\/strong> position [,length])\u300d\u2192 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\u3053\u3061\u3089\u3082\u4ed6\u306eSQL\u306b\u3082\u3042\u308bINSTR\u3068\u540c\u3058\u3067string\u306e\u4e2d\u304b\u3089substring\u6587\u5b57\u5217\u306e\u4f4d\u7f6e\u3092\u5272\u308a\u51fa\u3059\uff08position\u306f\u691c\u7d22\u958b\u59cb\u4f4d\u7f6e\u3001num\u306f\u5272\u308a\u51fa\u3059\u307e\u3067\u306e\u691c\u77e5\u56de\u6570\u300d\uff09\u3068\u3044\u3046\u5f62\u5f0f\u3067\u3059\u304c\u3001\u3084\u306f\u308a\u6700\u5f8c\u306bB\u304c\u3064\u304f\u3053\u3068\u3067\u30d0\u30a4\u30c8\u5358\u4f4d\u306e\u8a08\u7b97\u3068\u306a\u3063\u3066\u304a\u308a\u307e\u3059\u3002 \n\n\n\n\u4ed6\u306b\u3082\u63a2\u305b\u3070\u3042\u308b\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u304c\u3001\u4ee3\u8868\u7684\u3068\u601d\u308f\u308c\u308b\u4e0a\u8a18\u306e\u3082\u306e\u3092\u8ff0\u3079\u3066\u3001\u672c\u65e5\u306f\u3053\u3053\u307e\u3067\u3068\u3055\u305b\u3066\u3044\u305f\u3060\u304d\u307e\u3059\u3002\u3067\u306f\u307e\u305f\u3002\n","protected":false},"excerpt":{"rendered":"<p>\u3053\u3093\u306b\u3061\u306f\u3002\u5148\u65e5\u4ed5\u4e8b\u3067\u3001\u30bd\u30fc\u30b9\u30b3\u30fc\u30c9\u306eOracle Database\u306eSQL\u6587\u3092\u898b\u3066\u3044\u308b\u3068DECODE\u95a2\u6570\u304c\u4f7f\u7528\u3055\u308c\u3066\u304a\u308a\u3001\u4e0d\u52c9\u5f37\u3068\u3044\u3046\u3053\u3068\u3082\u3042\u308b\u306e\u3067\u3059\u304c\u3001\u8abf\u3079\u305f\u3068\u3053\u308dOracle\u72ec\u81ea\u306eCase\u6587\u4e92\u63db\u306e\u95a2\u6570\u3068\u3044\u3046\u3053\u3068\u304c\u5206 [&hellip;]<\/p>\n","protected":false},"author":10,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[27],"tags":[],"_links":{"self":[{"href":"https:\/\/www.kara-kuri.jp\/blog\/index.php?rest_route=\/wp\/v2\/posts\/2288"}],"collection":[{"href":"https:\/\/www.kara-kuri.jp\/blog\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.kara-kuri.jp\/blog\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.kara-kuri.jp\/blog\/index.php?rest_route=\/wp\/v2\/users\/10"}],"replies":[{"embeddable":true,"href":"https:\/\/www.kara-kuri.jp\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=2288"}],"version-history":[{"count":12,"href":"https:\/\/www.kara-kuri.jp\/blog\/index.php?rest_route=\/wp\/v2\/posts\/2288\/revisions"}],"predecessor-version":[{"id":2300,"href":"https:\/\/www.kara-kuri.jp\/blog\/index.php?rest_route=\/wp\/v2\/posts\/2288\/revisions\/2300"}],"wp:attachment":[{"href":"https:\/\/www.kara-kuri.jp\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2288"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.kara-kuri.jp\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2288"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.kara-kuri.jp\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2288"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}