{"id":79,"date":"2020-06-09T10:14:00","date_gmt":"2020-06-09T02:14:00","guid":{"rendered":"http:\/\/www.gbase8.cn\/?p=79"},"modified":"2021-01-06T16:56:19","modified_gmt":"2021-01-06T08:56:19","slug":"gbase8a-%e9%9b%86%e7%be%a4%e6%9f%a5%e7%9c%8b%e5%ba%93%e9%87%8c%e6%9c%89%e5%93%aa%e4%ba%9b%e8%a1%a8%ef%bc%8c%e6%88%96%e6%9f%90%e5%bc%a0%e8%a1%a8%e6%98%af%e5%90%a6%e5%ad%98%e5%9c%a8","status":"publish","type":"post","link":"https:\/\/www.gbase8.cn\/en\/79","title":{"rendered":"\u5357\u5927\u901a\u7528GBase8a \u96c6\u7fa4\u67e5\u770b\u6216\u5224\u65ad\u5e93\u91cc\u6709\u54ea\u4e9b\u8868\uff0c\u6216\u67d0\u5f20\u8868\u662f\u5426\u5b58\u5728"},"content":{"rendered":"\n<p>GBase 8a\u6570\u636e\u5e93\u96c6\u7fa4\uff0c\u63d0\u4f9b\u4e86\u5143\u6570\u636e\u8868information_schema.tables\uff0c\u65b9\u4fbf\u7528\u6237\u67e5\u770b\u6216\u5224\u65ad\u5df2\u7ecf\u521b\u5efa\u7684\u8868\u7684\u60c5\u51b5\u3002\u547d\u4ee4\u884c\u4e5f\u53ef\u4ee5\u7528show tables\u67e5\u770b\u5f53\u524d\u5e93\u7684\u8868\uff0c\u4f7f\u7528like \u8fdb\u884c\u6a21\u7cca\u5339\u914d\u3002<\/p>\n\n\n\n<p>\u6ce8\u610f\uff1a<\/p>\n\n\n\n<p>1\u3001gbase\u91cc\u5c06\u89c6\u56fe\u540d\u548c\u8868\u540d\u6df7\u5728\u4e00\u8d77\u663e\u793a\uff0c\u9700\u8981\u6839\u636e\u8868\u7c7b\u578b\u533a\u5206\u662fBASE TABLE\u8fd8\u662fVIEW\u3002<\/p>\n\n\n\n<p>2\u3001<strong>\u5f53\u4e00\u4e2a\u5e93\u4e0b\u9762\u8868\u975e\u5e38\u591a\u65f6\uff0c\u8bfb\u53d6\u6240\u6709\u8868\uff0c\u5c06\u5728\u78c1\u76d8\u626b\u63cf\u6574\u4e2a\u76ee\u5f55\uff0c\u5f53\u8868\u6570\u91cf\u8d85\u8fc7<\/strong><strong>10<\/strong><strong>\u4e07\u4e2a\uff0c\u5c06\u6d88\u8017\u5927\u91cf\u7684\u78c1\u76d8IO,<\/strong><strong>\u8017\u65f6\u4e5f\u5c06\u63d0\u5347\u5230\u5206\u949f\u7ea7<\/strong>\u3002 \u5982\u67e5\u8be2\u7684\u8868\u90fd\u662fExpress\u7c7b\u578b\u7684\u8868\uff0c\u8bf7\u4ece\u540e\u9762\u6837\u4f8b\u7684table_distirbutin\u8868\u91cc\u67e5\u8be2\u3002<\/p>\n\n\n\n<p>\u53ef\u4ee5\u901a\u8fc7\u5982\u4e0b\u51e0\u4e2a\u65b9\u5f0f\u8fdb\u884c\u3002<\/p>\n\n\n\n<p>1\u3001show tables\uff0c\u9002\u5408\u547d\u4ee4\u884c\u5ba2\u6237\u7aef\u5feb\u901f\u67e5\u770b\u3002<\/p>\n\n\n\n<p>2\u3001\u4ece\u5143\u6570\u636e\u8868tables\u67e5\u8be2\uff0c\u9002\u5408\u67e5\u8be2\u8868\u7684\u5168\u90e8\u4fe1\u606f\u3002\u8868\u591a\u65f6\u901f\u5ea6\u5f88\u6162\u3002<\/p>\n\n\n\n<p>3\u3001\u4ece\u5143\u6570\u636e\u8868table_distribution\u67e5\u8be2\uff0c\u9002\u5408\u67e5\u8be2\u8868\u7684\u540d\u5b57\u7b49\u57fa\u672c\u4fe1\u606f\u3002<\/p>\n\n\n\n<p>\u901a\u8fc7 show full tables [where]<\/p>\n\n\n\n<figure class=\"wp-block-image size-large is-style-default\"><img decoding=\"async\" src=\"blob:http:\/\/www.gbase8.cn\/54ef9eb5-df74-4c1f-a720-07dfb0449314\" alt=\"\"\/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large is-style-default\"><img loading=\"lazy\" decoding=\"async\" width=\"284\" height=\"181\" src=\"http:\/\/www.gbase8.cn\/wp-content\/uploads\/2020\/06\/image-27.png\" alt=\"\" class=\"wp-image-81\"\/><\/figure>\n\n\n\n<p>\u53ef\u4ee5\u901a\u8fc7where\u6761\u4ef6\u8fc7\u6ee4<\/p>\n\n\n\n<figure class=\"wp-block-image size-large is-style-default\"><img loading=\"lazy\" decoding=\"async\" width=\"493\" height=\"178\" src=\"http:\/\/www.gbase8.cn\/wp-content\/uploads\/2020\/06\/image-28.png\" alt=\"\" class=\"wp-image-82\"\/><\/figure>\n\n\n\n<p>\u52a0\u4e0a\u8868\u540d\u8fc7\u6ee4<\/p>\n\n\n\n<figure class=\"wp-block-image size-large is-style-default\"><img loading=\"lazy\" decoding=\"async\" width=\"628\" height=\"104\" src=\"http:\/\/www.gbase8.cn\/wp-content\/uploads\/2020\/06\/image-29.png\" alt=\"\" class=\"wp-image-83\"\/><\/figure>\n\n\n\n<ul class=\"wp-block-list\"><li>\u901a\u8fc7show &nbsp;tables [like]<\/li><\/ul>\n\n\n\n<p>\u8fd9\u4e2a\u9ed8\u8ba4\u662f\u5305\u542b\u89c6\u56fe\u7684\uff0c\u8bf7\u6ce8\u610f\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-large is-style-default\"><img loading=\"lazy\" decoding=\"async\" width=\"340\" height=\"391\" src=\"http:\/\/www.gbase8.cn\/wp-content\/uploads\/2020\/06\/image-30.png\" alt=\"\" class=\"wp-image-84\"\/><\/figure>\n\n\n\n<ul class=\"wp-block-list\"><li>\u901a\u8fc7\u5143\u6570\u636e\u8868tables\u3002<\/li><\/ul>\n\n\n\n<p>\u968f\u610f\u8fc7\u6ee4\u3002 \u4f46\u5efa\u8bae\u5728\u8868\u975e\u5e38\u591a\u65f6\uff0c\u9700\u8981\u626b\u63cf\u6574\u4e2a\u5e93\uff0c\u6d88\u8017\u8d44\u6e90\u592a\u591a\u3002\u5728\u67d0\u9879\u76ee20\u4e07\u4e2a\u8868\u65f6\uff0c\u4e1a\u52a1\u5728\u7ebf\u65f6\u67e5\u8be2\u5168\u90e8\u8868\uff0c\u8017\u65f610-30\u5206\u949f\u3002\u6d88\u8017\u5927\u91cfIO\u8bfb\u53d6\u8868\u4fe1\u606f\u3002<\/p>\n\n\n\n<p>\u5efa\u8bae\u4f7f\u7528\u540e\u9762\u7684table_distribution\u67e5\u8be2\u6240\u6709Express\u7c7b\u7684\u8868\u3002<\/p>\n\n\n\n<p>select table_name from information_schema.tables where table_schema='testdb' and table_type='BASE TABLE'<\/p>\n\n\n\n<p>\u5176\u4e2dtestdb\u662f\u5e93\u540d\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-large is-style-default\"><img loading=\"lazy\" decoding=\"async\" width=\"793\" height=\"133\" src=\"http:\/\/www.gbase8.cn\/wp-content\/uploads\/2020\/06\/image-31.png\" alt=\"\" class=\"wp-image-85\"\/><\/figure>\n\n\n\n<ul class=\"wp-block-list\"><li>\u901a\u8fc7\u5143\u6570\u636e\u8868table_distribution<\/li><\/ul>\n\n\n\n<p>\u8be5\u8868\u3010\u53ea\u3011\u8bb0\u5f55\u4e86express\u5f15\u64ce\u7c7b\u8868\u7684\u4fe1\u606f\uff0c\u5982\u679c\u53ea\u662f\u67e5\u8be2\u8868\u540d\u7b49\u57fa\u672c\u4fe1\u606f\uff0c\u5efa\u8bae\u7528\u8fd9\u4e2a\u3002<\/p>\n\n\n\n<p>\u8be5\u8868\u4e0d\u5305\u542b\u89c6\u56fe\u4fe1\u606f\u3002<\/p>\n\n\n\n<p>select tbname from gbase.table_distribution where dbname='testdb';<\/p>\n\n\n\n<figure class=\"wp-block-image size-large is-style-default\"><img loading=\"lazy\" decoding=\"async\" width=\"1557\" height=\"585\" src=\"http:\/\/www.gbase8.cn\/wp-content\/uploads\/2020\/06\/image-32.png\" alt=\"\" class=\"wp-image-86\"\/><\/figure>\n\n\n\n<p><\/p>\n\n\n\n<p>\u67e5\u770b\u89c6\u56fe\u5143\u6570\u636e\uff0c\u53ef\u4ee5\u53c2\u8003<\/p>\n\n\n\n<p><a href=\"http:\/\/www.gbase8.cn\/?p=88\">GBase8a \u96c6\u7fa4\u67e5\u770b\u5e93\u91cc\u6709\u54ea\u4e9b\u89c6\u56fe<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5357\u5927\u901a\u7528GBase 8a\u6570\u636e\u5e93\u96c6\u7fa4\uff0c\u63d0\u4f9b\u4e86\u5143\u6570\u636e\u8868information_schema.tables\uff0c\u65b9\u4fbf\u7528\u6237\u67e5\u770b\u5df2\u7ecf\u521b\u5efa\u7684\u8868\u7684\u60c5\u51b5\u3002\u547d\u4ee4\u884c\u4e5f\u53ef\u4ee5\u7528show tables\u67e5\u770b\u5f53\u524d\u5e93\u7684\u8868\uff0c\u4f7f\u7528like \u8fdb\u884c\u6a21\u7cca\u5339\u914d\u3002<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3],"tags":[69],"class_list":["post-79","post","type-post","status-publish","format-standard","hentry","category-gbase8a","tag-69"],"_links":{"self":[{"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/posts\/79","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/comments?post=79"}],"version-history":[{"count":6,"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/posts\/79\/revisions"}],"predecessor-version":[{"id":2979,"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/posts\/79\/revisions\/2979"}],"wp:attachment":[{"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/media?parent=79"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/categories?post=79"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/tags?post=79"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}