{"id":2803,"date":"2020-07-06T11:30:19","date_gmt":"2020-07-06T02:30:19","guid":{"rendered":"https:\/\/133.242.23.245\/blog\/?p=2803"},"modified":"2020-07-06T11:31:14","modified_gmt":"2020-07-06T02:31:14","slug":"oracle-%e7%a9%ba%e7%99%bd%e5%9f%8b%e3%82%81%e3%83%ac%e3%82%b3%e3%83%bc%e3%83%89%e3%82%92%e6%8e%a2%e3%81%9b","status":"publish","type":"post","link":"https:\/\/www.kara-kuri.jp\/blog\/?p=2803","title":{"rendered":"Oracle \u7a7a\u767d\u57cb\u3081\u30ec\u30b3\u30fc\u30c9\u3092\u63a2\u305b"},"content":{"rendered":"\n\u30bf\u30a4\u30c8\u30eb\u304c\u5927\u3052\u3055\u306b\u66f8\u304d\u307e\u3057\u305f\u304c\u3001\u5927\u3057\u305f\u4e8b\u3058\u3083\u306a\u3044\u3067\u3059\u3002<br \/>\n\u305f\u3060\u8ff7\u8d70\u3057\u305f\u306e\u3067\u3001\u5099\u5fd8\u9332\u3092\u6b8b\u3057\u3066\u304a\u304d\u307e\u3059\u3002<br \/>\n<br \/>\n\u4e00\u5ea6\u306f\u898b\u305f\u3053\u3068\u304c\u3042\u308b\u304b\u3082\u3057\u308c\u306a\u3044\u4e0b\u8a18\u8868\u3092\u3054\u89a7\u4e0b\u3055\u3044\u3002<br \/>\n<br \/>\n<table border=\"1\">\n  <tr>\n    <th>No<\/th>\n    <th>Column1<\/th>\n  <\/tr>\n  <tr>\n    <th>1<\/th>\n    <th>&#8221;  &#8220;<\/th>\n  <\/tr>\n  <tr>\n    <th>2<\/th>\n    <th>&#8220;&#8221;<\/th>\n  <\/tr>\n  <tr>\n    <th>3<\/th>\n    <th>Null<\/th>\n  <\/tr>\n<\/table>\n<br \/>\n1. \u7a7a\u767d\u3042\u308a, 2. \u7a7a\u6b04, 3. Null <br \/>\nOracle (\u3068\u3044\u3046\u304b Column1 \u306e\u578b\u304c VARCHAR2 \u3067\u3042\u308b\u6642(\u4e88\u9632\u7dda))\u3067\u306f\u3001<br \/>\nsqlplus \u3067SELECT\u3059\u308b\u3068\u3001<br \/>\n<p>\n<br \/>\nSELECT * FROM Table1<br \/>\n<br \/>\n<\/p>\nNo Column1<br \/>\n&#8212;&#8212;&#8212;&#8212;&#8212;-<br \/>\n 1        <br \/>\n 2        <br \/>\n 3        <br \/>\n\u203b\u624b\u629c\u304d\u3067\u306f\u306a\u3044\u3002<br \/>\n<br \/>\n\u3053\u3046\u3044\u3046\u98a8\u306b\u898b\u3048\u308b\uff08\u8868\u793a\u3055\u308c\u308b\uff09\u3002<br \/>\n\u898b\u305f\u76ee\u306f\u4e00\u7dd2\u3060\u304c\u3001\u4ed6\u306e\u6709\u540d\u30da\u30fc\u30b8\u306b\u3082\u3042\u308b\u3088\u3046\u306b<br \/>\nNo.1 \u3068 2 or 3 \u306f\u660e\u78ba\u306b\u6271\u3044\u304c\u9055\u3046\u3002<br \/>\n<br \/>\n\u672c\u984c\u306f, No.1 \u306e\u7a7a\u767d\u3060\u3051\u306e\u30c7\u30fc\u30bf\u304c\u3042\u308b\u30ec\u30b3\u30fc\u30c9\u3060\u3051\u3092\u62bd\u51fa\u3057\u305f\u3044\u3002<br \/>\n<br \/>\n\u305f\u3060\u3001\u3067\u304d\u305fSELECT\u6587\u3092\u898b\u308b\u3068\u3001\u305d\u3046\u96e3\u3057\u3044\u3053\u3068\u30fb\u30fb\u30fb<br \/>\n\u3044\u3048\u3001\u975e\u5e38\u306b\u7c21\u5358\u3067\u3042\u308b\u3002<br \/>\n<br \/>\n<p>\nSELECT * FROM Table1 <br \/>\n WHERE TRIM(Column1) IS NULL <br \/>\n   AND LENGTH(Column1) > 0 <br \/>\n<\/p>\n<br \/>\n\u7a7a\u767d\u3092\u53d6\u308a\u9664\u3044\u305f\u6587\u5b57\u304c NULL \u3067\u3042\u308b \u304b\u3064\u3001<br \/>\n\u53d6\u308a\u9664\u304f\u524d\u306e\u6587\u5b57\u5217\u304c 0 \u3067\u306a\u3044\u5834\u5408\u304c <br \/>\nNo.1 \u3060\u3051\u3092\u53d6\u5f97\u3059\u308b\u6761\u4ef6\u3067\u3042\u308b\u3002<br \/>\n\uff08\u305d\u306e\u767a\u60f3\u306b\u81f3\u308b\u307e\u3067\u306e\u904e\u7a0b\u306f\u3001\u7f6e\u3044\u3068\u3044\u3066\u3002\u3084\u3081\u3066\u3001\u805e\u304b\u306a\u3044\u3067\u3002\uff09<br \/>\n<br \/>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u30bf\u30a4\u30c8\u30eb\u304c\u5927\u3052\u3055\u306b\u66f8\u304d\u307e\u3057\u305f\u304c\u3001\u5927\u3057\u305f\u4e8b\u3058\u3083\u306a\u3044\u3067\u3059\u3002 \u305f\u3060\u8ff7\u8d70\u3057\u305f\u306e\u3067\u3001\u5099\u5fd8\u9332\u3092\u6b8b\u3057\u3066\u304a\u304d\u307e\u3059\u3002 \u4e00\u5ea6\u306f\u898b\u305f\u3053\u3068\u304c\u3042\u308b\u304b\u3082\u3057\u308c\u306a\u3044\u4e0b\u8a18\u8868\u3092\u3054\u89a7\u4e0b\u3055\u3044\u3002 No Column1 1 &#8221; &#8220; 2 &#038;# [&hellip;]<\/p>\n","protected":false},"author":11,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"_links":{"self":[{"href":"https:\/\/www.kara-kuri.jp\/blog\/index.php?rest_route=\/wp\/v2\/posts\/2803"}],"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\/11"}],"replies":[{"embeddable":true,"href":"https:\/\/www.kara-kuri.jp\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=2803"}],"version-history":[{"count":10,"href":"https:\/\/www.kara-kuri.jp\/blog\/index.php?rest_route=\/wp\/v2\/posts\/2803\/revisions"}],"predecessor-version":[{"id":2813,"href":"https:\/\/www.kara-kuri.jp\/blog\/index.php?rest_route=\/wp\/v2\/posts\/2803\/revisions\/2813"}],"wp:attachment":[{"href":"https:\/\/www.kara-kuri.jp\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2803"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.kara-kuri.jp\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2803"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.kara-kuri.jp\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2803"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}