{"id":2080,"date":"2015-03-05T22:11:33","date_gmt":"2015-03-05T14:11:33","guid":{"rendered":"http:\/\/blog.qdac.cc\/?p=2080"},"modified":"2015-03-11T15:45:40","modified_gmt":"2015-03-11T07:45:40","slug":"qdb-tqdataset-%e8%bf%87%e6%bb%a4%e8%a1%a8%e8%be%be%e5%bc%8f%e6%94%af%e6%8c%81%e7%9a%84%e6%93%8d%e4%bd%9c%e8%af%a6%e8%a7%a3","status":"publish","type":"post","link":"https:\/\/blog.qdac.cc\/?p=2080","title":{"rendered":"[QDB] TQDataSet \u8fc7\u6ee4\u8868\u8fbe\u5f0f\u652f\u6301\u7684\u64cd\u4f5c\u7b26\u8be6\u89e3"},"content":{"rendered":"<p>TQDataSet \u7684 Filter \u5c5e\u6027\u76f8\u6bd4\u7cfb\u7edf\u81ea\u5e26\u7684\u6570\u636e\u8868\u7ec4\u4ef6\u8fc7\u6ee4\u8868\u8fbe\u5f0f\uff0c\u8fdb\u884c\u4e86\u5f88\u5927\u7684\u589e\u5f3a\uff0c\u4ee5\u65b9\u4fbf\u7528\u6237\u4f7f\u7528\u3002\u5b83\u652f\u6301\u4ee5\u4e0b\u64cd\u4f5c\u7b26\uff1a<\/p>\n<ul>\n<li style=\"padding-left: 30px;\">\u5e38\u89c1\u7684\u6bd4\u8f83\u64cd\u4f5c\uff1a=\u3001&gt;\u3001&gt;=\u3001&lt;\u3001&lt;=\u3001!=\u3001&lt;&gt;\uff0c\u5176\u4e2d != \u548c &lt;&gt; \u7b49\u4ef7\uff0c\u4ee3\u8868\u4e0d\u7b49\u4e8e<\/li>\n<li style=\"padding-left: 30px;\">\u6a21\u7cca\u5339\u914d\u64cd\u4f5c\uff1a*\u3001!*\u3001like\u3001nlike \u5206\u522b\u5bf9\u5e94 like\u3001not like\u3001like \u548c not like \u64cd\u4f5c<\/li>\n<li style=\"padding-left: 30px;\">\u5217\u8868\u64cd\u4f5c\u7b26\uff1ain\uff0cnotin \u5206\u522b\u5bf9\u5e94\u4e8e in \u548c not in<\/li>\n<li style=\"padding-left: 30px;\">\u6b63\u5219\u8868\u8fbe\u5f0f\u5339\u914d\u7b26\uff1a~<\/li>\n<li style=\"padding-left: 30px;\">\u903b\u8f91\u5173\u8054\u64cd\u4f5c\uff1aand \u548c or \uff0c\u5206\u522b\u4ee3\u8868\u4e0e\u548c\u6216<\/li>\n<li style=\"padding-left: 30px;\">\u62ec\u53f7\u64cd\u4f5c\u7b26\uff1a( \u548c )<\/li>\n<\/ul>\n<p>TQDataSet \u7684 Filter \u8868\u8fbe\u5f0f\u6269\u5c55\u4e86 like \u548c not like \u64cd\u4f5c\u7684\u5339\u914d\u6a21\u5f0f\uff0c\u5177\u4f53\u89c4\u5219\u5982\u4e0b\uff1a<\/p>\n<ul>\n<li>_ : \u5355\u4e2a\u4efb\u610f\u5b57\u7b26<\/li>\n<li>* : \u4efb\u610f\u6570\u91cf\u7684\u4efb\u610f\u5b57\u7b26<\/li>\n<li>% :\u00a0\u4efb\u610f\u6570\u91cf\u7684\u4efb\u610f\u5b57\u7b26\uff0c\u4e0e * \u7b49\u4ef7<\/li>\n<li>[\u5b57\u7b26\u5217\u8868] : \u5bf9\u5e94\u4f4d\u7f6e\u53ea\u80fd\u662f\u5217\u8868\u4e2d\u7684\u5b57\u7b26<\/li>\n<li>[^\u5b57\u7b26\u5217\u8868] \u6216 [!\u5b57\u7b26\u5217\u8868] : \u5bf9\u5e94\u4f4d\u7f6e\u4e0d\u80fd\u53d6\u5217\u8868\u4e2d\u7684\u5b57\u7b26<\/li>\n<li>\\ : \u7b26\u53f7\u8f6c\u4e49\n<ul>\n<li>\\r : \u6362\u884c\u7b26<\/li>\n<li>\\n : \u56de\u8f66\u7b26<\/li>\n<li>\\b : BELL\uff08ASCII \u7801 7\uff09<\/li>\n<li>\\d : \u6570\u5b57\uff080-9\uff0c\uff10\uff0d\uff19\uff09<\/li>\n<li>\\D : \u975e\u6570\u5b57<\/li>\n<li>\\f : FEED\uff08ASCII \u7801 12\uff09<\/li>\n<li>\\t : Tab\uff08ASCII \u7801 9\uff09<\/li>\n<li>\\v : \u5782\u76f4\u6362\u884c\u7b26\uff08 ASCII \u7801 11\uff09<\/li>\n<li>\\s : \u7a7a\u767d\u5b57\u7b26\uff08\u5168\u89d2\u548c\u534a\u89d2\u7a7a\u683c\u3001\u6362\u884c\u7b26\u3001\u56de\u8f66\u3001Tab\uff09<\/li>\n<li>\\S : \u975e\u7a7a\u767d\u5b57\u7b26<\/li>\n<li>\\uXXXX : \u7279\u5b9a\u7684Unicode\u5b57\u7b26\uff0cXXXX \u4e3aUnicode\u5b57\u7b26\u7684\u5341\u516d\u8fdb\u5236\u7f16\u7801<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>\u5982\u679c\u9700\u8981\u66f4\u590d\u6742\u7684\u5339\u914d\u89c4\u5219\uff0c\u8bf7\u4f7f\u7528 ~ \u64cd\u4f5c\u7b26\u5b8c\u6210\u6b63\u5219\u5339\u914d\u3002TQDataSet \u7684\u6b63\u5219\u8868\u8fbe\u5f0f\u7684\u5339\u914d\u6a21\u5f0f\u53ef\u4ee5\u4f7f\u7528\u7c7b\u4f3c JavaScript \u7684\u5b57\u7b26\u4e32\u5339\u914d\u6a21\u5f0f\u5b8c\u6210\uff0c\u652f\u6301\u4ee5\u4e0b\u5b9a\u4e49\uff1a<\/p>\n<ul>\n<li>i \u00a0: \u5ffd\u7565\u5927\u5c0f\u5199<\/li>\n<li>m : \u591a\u884c\u5339\u914d\u6a21\u5f0f<\/li>\n<li>s : \u5355\u884c\u5339\u914d\u6a21\u5f0f<\/li>\n<li>x : \u6269\u5c55\u5339\u914d\u6a21\u5f0f\uff0c\u5141\u8bb8\u6b63\u5219\u8868\u8fbe\u5f0f\u5305\u542b\u989d\u5916\u7684\u7a7a\u767d\uff0c\u65b0\u884c\u6216 Perl \u6837\u5f0f\u7684\u6ce8\u91ca\uff0c\u6240\u6709\u8fd9\u4e9b\u90fd\u5c06\u88ab\u8fc7\u6ee4\u6389<\/li>\n<li>A : \u4ec5\u5728\u5185\u5bb9\u5f00\u59cb\u6216\u524d\u4e00\u6b21\u5339\u914d\u7684\u53f3\u4fa7\u624d\u80fd\u5339\u914d\u6210\u529f<\/li>\n<\/ul>\n<p>\u5176\u5b83\u5339\u914d\u7b26\u4e0d\u53d7\u652f\u6301\uff0c\u800c\u76f4\u63a5\u88ab\u5ffd\u7565\uff08\u5982 \/g \uff09\u3002\u548c JavaScript \u7684\u683c\u5f0f\u7c7b\u4f3c\uff0c\u6b63\u5219\u5339\u914d\u7684\u6a21\u5f0f\u7684\u5b57\u7b26\u4e32\u4ee5\u659c\u7ebf\u5f00\u59cb\uff0c\u7ed3\u675f\u4e8e\u659c\u7ebf\u52a0\u4e0a\u8ff0\u6a21\u5f0f\u5b57\u6bcd\u7684\u7ec4\u5408\u3002\u4e0b\u9762\u662f\u51e0\u4e2a\u7b80\u5355\u7684\u4f8b\u5b50\uff1a<\/p>\n<p style=\"padding-left: 30px;\">Id ~ &#8216;\/cc_\\d\\d$\/i&#8217;\u00a0:\u00a0\u5f3a\u5236\u5728\u5339\u914d\u65f6\u5ffd\u7565\u5927\u5c0f<\/p>\n<p style=\"padding-left: 30px;\">Id ~&#8217;\/cc_\\d\\d\/is&#8217; \u00a0: \u5ffd\u7565\u5927\u5c0f\u5199\uff0c\u5e76\u5f3a\u5236\u5355\u884c\u5339\u914d<\/p>\n<p>Filter \u5c5e\u6027\u7684\u683c\u5f0f\u548cSQL\u6807\u51c6\u7684\u683c\u5f0f\u5f88\u50cf\uff0c\u4f46\u8981\u8fc7\u6ee4\u7684\u5b57\u6bb5\u540d\u59cb\u7ec8\u653e\u5728\u524d\u9762\uff0c\u800c\u4e14\u6682\u65f6\u4e0d\u652f\u6301\u5185\u5d4c\u51fd\u6570\u3002\u4e0b\u9762\u662f\u4e00\u4e9b\u6709\u6548\u7684\u8fc7\u6ee4\u7684\u8868\u8fbe\u5f0f\u4f8b\u5b50\uff1a<\/p>\n<p style=\"padding-left: 30px;\">Name like &#8216;\u738b%&#8217;<\/p>\n<p style=\"padding-left: 30px;\">Age&gt;10<\/p>\n<p style=\"padding-left: 30px;\">Name like &#8216;\u5f20_%&#8217; and Age&gt;10<\/p>\n<p style=\"padding-left: 30px;\">(Name like &#8216;\u5f20%&#8217;) and (Age&lt;30)<\/p>\n<p style=\"padding-left: 30px;\">Name ~ &#8216;\u5f20.+&#8217;<\/p>\n<p>\u4e0b\u9762\u662f\u65e0\u6548\u7684\u8868\u8fbe\u5f0f\uff1a<\/p>\n<p style=\"padding-left: 30px;\">10&lt;Age<\/p>\n<p style=\"padding-left: 30px;\">Age&gt;Max(Age)\/2<\/p>\n<p>\u00a0\u5b9e\u9645\u8fc7\u6ee4\u6548\u679c\u622a\u56fe\uff1a<\/p>\n<p><a href=\"https:\/\/blog.qdac.cc\/wp-content\/uploads\/2015\/03\/QDataSetFilter.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-2109\" src=\"https:\/\/blog.qdac.cc\/wp-content\/uploads\/2015\/03\/QDataSetFilter.jpg\" alt=\"QDataSetFilter\" width=\"672\" height=\"454\" srcset=\"https:\/\/blog.qdac.cc\/wp-content\/uploads\/2015\/03\/QDataSetFilter.jpg 672w, https:\/\/blog.qdac.cc\/wp-content\/uploads\/2015\/03\/QDataSetFilter-300x203.jpg 300w\" sizes=\"auto, (max-width: 672px) 100vw, 672px\" \/><\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>TQDataSet \u7684 Filter \u5c5e [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center 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