{"id":6583,"date":"2022-07-22T11:27:01","date_gmt":"2022-07-22T03:27:01","guid":{"rendered":"http:\/\/123.57.164.21\/?p=6583"},"modified":"2022-07-22T11:27:01","modified_gmt":"2022-07-22T03:27:01","slug":"db2-drop-schema-tips","status":"publish","type":"post","link":"https:\/\/92it.top\/?p=6583","title":{"rendered":"DB2 Drop SCHEMA Tips"},"content":{"rendered":"\n<p>\u5728DB2\u6211\u4eec\u53ef\u4ee5\u7528\u4e0b\u9762\u7684\u547d\u4ee4\u5220\u9664SCHEMA<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/123.57.164.21\/wp-content\/uploads\/2022\/07\/\u56fe\u7247-224-1024x65.png\" alt=\"\" class=\"wp-image-6584\" width=\"590\" height=\"37\" srcset=\"https:\/\/92it.top\/wp-content\/uploads\/2022\/07\/\u56fe\u7247-224-1024x65.png 1024w, https:\/\/92it.top\/wp-content\/uploads\/2022\/07\/\u56fe\u7247-224-300x19.png 300w, https:\/\/92it.top\/wp-content\/uploads\/2022\/07\/\u56fe\u7247-224-768x49.png 768w, https:\/\/92it.top\/wp-content\/uploads\/2022\/07\/\u56fe\u7247-224-830x52.png 830w, https:\/\/92it.top\/wp-content\/uploads\/2022\/07\/\u56fe\u7247-224-230x15.png 230w, https:\/\/92it.top\/wp-content\/uploads\/2022\/07\/\u56fe\u7247-224-350x22.png 350w, https:\/\/92it.top\/wp-content\/uploads\/2022\/07\/\u56fe\u7247-224-480x30.png 480w, https:\/\/92it.top\/wp-content\/uploads\/2022\/07\/\u56fe\u7247-224.png 1360w\" sizes=\"(max-width: 590px) 100vw, 590px\" \/><\/figure><\/div>\n\n\n\n<ul><li>\u9996\u5148\uff0c\u5728 DROP SCHEMA \u5173\u952e\u5b57\u4e4b\u540e\u6307\u5b9a\u8981\u4ece\u4e2d\u5220\u9664\u7684\u6a21\u5f0f\u7684\u540d\u79f0\u3002<\/li><li>\u5176\u6b21\uff0c\u4f7f\u7528 IF EXISTS \u9009\u9879\u6709\u6761\u4ef6\u5730\u4ec5\u5728\u6a21\u5f0f\u5b58\u5728\u65f6\u5220\u9664\u6a21\u5f0f\u3002<\/li><li>\u7b2c\u4e09\uff0c\u4f7f\u7528 CASCADE \u5220\u9664\u67b6\u6784\u53ca\u5176\u6240\u6709\u5bf9\u8c61\uff0c\u8fdb\u800c\u5220\u9664\u4f9d\u8d56\u4e8e\u8fd9\u4e9b\u5bf9\u8c61\u7684\u6240\u6709\u5bf9\u8c61\u3002\u5982\u679c\u60a8\u53ea\u60f3\u5728\u67b6\u6784\u4e3a\u7a7a\u65f6\u5220\u9664\u67b6\u6784\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528 RESTRICT \u9009\u9879\u3002\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0cDB2 \u4f7f\u7528 RESTRICT\u3002<\/li><\/ul>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">DROP SCHEMA IF EXISTS TEST <\/pre>\n\n\n\n<p>\u4f46\u662f\u5f53SCHEMA\u4e0b\u9762\u5b58\u5728\u8868\u6216\u8005\u522b\u7684\u6570\u636e\u5e93\u5bf9\u8c61\u65f6\uff0c\u4e0a\u9762\u7684Drop\u8bed\u53e5\u4f1a\u51fa\u9519\u3002\u5f97\u5148\u628aSCHEMA\u4e0b\u9762\u7684\u8fd9\u4e9b\u5bf9\u8c61Drop\u6389\uff0c\u7136\u540e\u624d\u80fdDrop SCHEMA\u3002\u5f53\u7136\u6211\u4eec\u53ef\u4ee5\u7528CASCADE\u5173\u952e\u5b57\u6765\u5f3a\u5236Drop SCHEMA\u53caSCHEMA\u4e0b\u9762\u6240\u6709\u7684\u5bf9\u8c61\u3002<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">DROP SCHEMA IF EXISTS TEST CASCADE\n<\/pre>\n","protected":false},"excerpt":{"rendered":"<p>\u5728DB2\u6211\u4eec\u53ef\u4ee5\u7528\u4e0b\u9762\u7684\u547d\u4ee4\u5220\u9664SCHEMA \u9996\u5148\uff0c\u5728 DROP SCHEMA \u5173\u952e\u5b57\u4e4b\u540e\u6307\u5b9a\u8981\u4ece\u4e2d\u5220\u9664\u7684\u6a21\u5f0f [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[23],"tags":[],"_links":{"self":[{"href":"https:\/\/92it.top\/index.php?rest_route=\/wp\/v2\/posts\/6583"}],"collection":[{"href":"https:\/\/92it.top\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/92it.top\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/92it.top\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/92it.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=6583"}],"version-history":[{"count":1,"href":"https:\/\/92it.top\/index.php?rest_route=\/wp\/v2\/posts\/6583\/revisions"}],"predecessor-version":[{"id":6585,"href":"https:\/\/92it.top\/index.php?rest_route=\/wp\/v2\/posts\/6583\/revisions\/6585"}],"wp:attachment":[{"href":"https:\/\/92it.top\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=6583"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/92it.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=6583"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/92it.top\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=6583"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}