{"id":15938,"date":"2023-12-04T23:47:17","date_gmt":"2023-12-04T15:47:17","guid":{"rendered":"https:\/\/wx.kaifamiao.info\/?p=15938"},"modified":"2023-12-05T00:12:13","modified_gmt":"2023-12-04T16:12:13","slug":"oracle-zhong-truncate-he-delete-qu-bie-shi-shen-me","status":"publish","type":"post","link":"http:\/\/wx.kaifamiao.info\/index.php\/2023\/12\/04\/oracle-zhong-truncate-he-delete-qu-bie-shi-shen-me\/","title":{"rendered":"Oracle \u4e2d truncate \u548c delete \u533a\u522b\u662f\u4ec0\u4e48\uff1f"},"content":{"rendered":"

TRUNCATE<\/code> \u548c DELETE<\/code> \u662f Oracle \u4e2d\u7528\u4e8e\u5220\u9664\u8868\u4e2d\u6570\u636e\u7684\u4e24\u4e2a\u4e0d\u540c\u7684 SQL \u547d\u4ee4\uff0c\u5b83\u4eec\u6709\u4ee5\u4e0b\u4e3b\u8981\u533a\u522b\uff1a<\/p>\n

    \n
  1. \n\u64cd\u4f5c\u7ea7\u522b\uff1a<\/strong><\/p>\n
      \n
    • TRUNCATE\uff1a<\/strong> \u4ee5\u8868\u4e3a\u5355\u4f4d\u8fdb\u884c\u64cd\u4f5c\u3002TRUNCATE<\/code> \u662f\u4e00\u79cd DDL\uff08\u6570\u636e\u5b9a\u4e49\u8bed\u8a00\uff09\u64cd\u4f5c\uff0c\u4f1a\u76f4\u63a5\u4ece\u8868\u4e2d\u79fb\u9664\u6240\u6709\u6570\u636e\uff0c\u4f46\u4fdd\u7559\u8868\u7684\u7ed3\u6784\u548c\u5b9a\u4e49\u3002<\/li>\n
    • DELETE\uff1a<\/strong> \u4ee5\u884c\u4e3a\u5355\u4f4d\u8fdb\u884c\u64cd\u4f5c\u3002DELETE<\/code> \u662f\u4e00\u79cd DML\uff08\u6570\u636e\u64cd\u4f5c\u8bed\u8a00\uff09\u64cd\u4f5c\uff0c\u7528\u4e8e\u5220\u9664\u8868\u4e2d\u7684\u4e00\u90e8\u5206\u6216\u5168\u90e8\u884c\u3002<\/li>\n<\/ul>\n<\/li>\n
    • \n\u901f\u5ea6\u548c\u6548\u7387\uff1a<\/strong><\/p>\n
        \n
      • TRUNCATE\uff1a<\/strong> \u901a\u5e38\u6bd4 DELETE<\/code> \u66f4\u5feb\uff0c\u56e0\u4e3a\u5b83\u662f\u76f4\u63a5\u622a\u65ad\u8868\uff0c\u800c\u4e0d\u662f\u9010\u884c\u5220\u9664\u6570\u636e\u3002TRUNCATE<\/code> \u901a\u8fc7\u91ca\u653e\u8868\u6240\u5360\u7528\u7684\u7a7a\u95f4\u6765\u5b9e\u73b0\u5220\u9664\u3002<\/li>\n
      • DELETE\uff1a<\/strong> \u6bd4 TRUNCATE<\/code> \u6162\uff0c\u56e0\u4e3a\u5b83\u9010\u884c\u5220\u9664\u6570\u636e\uff0c\u5e76\u4e14\u53ef\u80fd\u89e6\u53d1\u89e6\u53d1\u5668\u3001\u5f15\u53d1\u8054\u7ea7\u5220\u9664\u7b49\u64cd\u4f5c\u3002<\/li>\n<\/ul>\n<\/li>\n
      • \n\u4e8b\u52a1\u5904\u7406\uff1a<\/strong><\/p>\n
          \n
        • TRUNCATE\uff1a<\/strong> \u4e0d\u4ea7\u751f\u4e8b\u52a1\u65e5\u5fd7\uff0c\u56e0\u6b64\u4e0d\u53ef\u56de\u6eda\u3002\u4e00\u65e6\u6267\u884c TRUNCATE<\/code>\uff0c\u6570\u636e\u65e0\u6cd5\u8fd8\u539f\u3002<\/li>\n
        • DELETE\uff1a<\/strong> \u4f1a\u4ea7\u751f\u4e8b\u52a1\u65e5\u5fd7\uff0c\u53ef\u4ee5\u901a\u8fc7\u56de\u6eda\u8fdb\u884c\u6570\u636e\u8fd8\u539f\u3002<\/li>\n<\/ul>\n<\/li>\n
        • \n\u6743\u9650\u8981\u6c42\uff1a<\/strong><\/p>\n
            \n
          • TRUNCATE\uff1a<\/strong> \u9700\u8981\u8868\u7684 ALTER<\/code> \u6743\u9650\uff0c\u56e0\u4e3a TRUNCATE<\/code> \u64cd\u4f5c\u5b9e\u9645\u4e0a\u662f\u5728\u8868\u4e0a\u6267\u884c\u4e86\u4e00\u4e2aDDL\u64cd\u4f5c\uff0c\u66f4\u6539\u4e86\u8868\u7684\u7ed3\u6784\u3002<\/li>\n
          • DELETE\uff1a<\/strong> \u9700\u8981\u8868\u7684 DELETE<\/code> \u6743\u9650\u3002<\/li>\n<\/ul>\n<\/li>\n
          • \n\u89e6\u53d1\u5668\uff1a<\/strong><\/p>\n
              \n
            • TRUNCATE\uff1a<\/strong> \u4e0d\u89e6\u53d1\u8868\u4e0a\u7684\u89e6\u53d1\u5668\u3002<\/li>\n
            • DELETE\uff1a<\/strong> \u4f1a\u89e6\u53d1\u8868\u4e0a\u7684\u89e6\u53d1\u5668\uff08\u5982\u679c\u6709\uff09\u3002<\/li>\n<\/ul>\n<\/li>\n
            • \n\u56de\u6536\u7a7a\u95f4\uff1a<\/strong><\/p>\n
                \n
              • TRUNCATE\uff1a<\/strong> \u91ca\u653e\u8868\u6240\u5360\u7528\u7684\u5b58\u50a8\u7a7a\u95f4\uff0c\u8868\u7684\u9ad8\u6c34\u4f4d\u5c06\u88ab\u91cd\u7f6e\u3002<\/li>\n
              • DELETE\uff1a<\/strong> \u4e0d\u4f1a\u91ca\u653e\u5b58\u50a8\u7a7a\u95f4\uff0c\u8868\u7684\u9ad8\u6c34\u4f4d\u4e0d\u4f1a\u53d8\u5316\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n

                \u603b\u4f53\u6765\u8bf4\uff0c\u5982\u679c\u76ee\u6807\u662f\u5220\u9664\u6574\u4e2a\u8868\u7684\u6570\u636e\u800c\u4e0d\u662f\u9010\u884c\u5220\u9664\uff0c\u4e14\u4e0d\u9700\u8981\u56de\u6eda\u7684\u80fd\u529b\uff0c\u90a3\u4e48 TRUNCATE<\/code> \u53ef\u80fd\u662f\u66f4\u597d\u7684\u9009\u62e9\uff0c\u5c24\u5176\u662f\u5bf9\u4e8e\u5927\u578b\u8868\u3002\u4f46\u9700\u8981\u6ce8\u610f TRUNCATE<\/code> \u7684\u4e00\u4e9b\u9650\u5236\u548c\u8981\u6c42\u3002\u5728\u9700\u8981\u66f4\u7cbe\u7ec6\u63a7\u5236\u3001\u4ea7\u751f\u4e8b\u52a1\u65e5\u5fd7\u3001\u89e6\u53d1\u89e6\u53d1\u5668\u7b49\u573a\u666f\u4e0b\uff0c\u53ef\u4ee5\u4f7f\u7528 DELETE<\/code>\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

                TRUNCATE \u548c DELETE \u662f Oracle \u4e2d\u7528\u4e8e\u5220\u9664\u8868\u4e2d\u6570\u636e\u7684\u4e24\u4e2a\u4e0d\u540c\u7684 SQL \u547d\u4ee4\uff0c\u5b83\u4eec\u6709\u4ee5\u4e0b […]<\/p>\n","protected":false},"author":11,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[120],"tags":[],"class_list":["post-15938","post","type-post","status-publish","format-standard","hentry","category-oracel"],"_links":{"self":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/15938","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/users\/11"}],"replies":[{"embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/comments?post=15938"}],"version-history":[{"count":1,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/15938\/revisions"}],"predecessor-version":[{"id":15939,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/15938\/revisions\/15939"}],"wp:attachment":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/media?parent=15938"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/categories?post=15938"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/tags?post=15938"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}