{"id":47831,"date":"2023-12-11T15:13:11","date_gmt":"2023-12-11T07:13:11","guid":{"rendered":"https:\/\/wx.kaifamiao.info\/?p=47831"},"modified":"2023-12-11T15:13:11","modified_gmt":"2023-12-11T07:13:11","slug":"%e4%bb%80%e4%b9%88%e6%98%af%e8%a7%a6%e5%8f%91%e5%99%a8sql-server-2000%e6%9c%89%e4%bb%80%e4%b9%88%e4%b8%8d%e5%90%8c%e7%b1%bb%e5%9e%8b%e7%9a%84%e8%a7%a6%e5%8f%91%e5%99%a8-4","status":"publish","type":"post","link":"http:\/\/wx.kaifamiao.info\/index.php\/2023\/12\/11\/%e4%bb%80%e4%b9%88%e6%98%af%e8%a7%a6%e5%8f%91%e5%99%a8sql-server-2000%e6%9c%89%e4%bb%80%e4%b9%88%e4%b8%8d%e5%90%8c%e7%b1%bb%e5%9e%8b%e7%9a%84%e8%a7%a6%e5%8f%91%e5%99%a8-4\/","title":{"rendered":"\u4ec0\u4e48\u662f\u89e6\u53d1\u5668?SQL Server 2000\u6709\u4ec0\u4e48\u4e0d\u540c\u7c7b\u578b\u7684\u89e6\u53d1\u5668?"},"content":{"rendered":"

“`\u8ba9\u672a\u6765\u7684\u6570\u636e\u5e93\u5f00\u53d1\u4eba\u5458\u77e5\u9053\u53ef\u7528\u7684\u89e6\u53d1\u5668\u7c7b\u578b\u4ee5\u53ca\u5982\u4f55\u5b9e\u73b0\u5b83\u4eec\u662f\u975e\u5e38\u6709\u76ca\u7684\u3002\u89e6\u53d1\u5668\u662f\u4e00\u79cd\u4e13\u7528\u7c7b\u578b\u7684\u5b58\u50a8\u8fc7\u7a0b\uff0c\u5b83\u88ab\u6346\u7ed1\u5230SQL Server 2000\u7684\u8868\u683c\u6216\u8005\u89c6\u56fe\u4e0a\u3002\u5728SQL Server 2000\u91cc\uff0c\u6709INSTEAD-OF\u548cAFTER\u4e24\u79cd\u89e6\u53d1\u5668\u3002INSTEAD-OF\u89e6\u53d1\u5668\u662f\u66ff\u4ee3\u6570\u636e\u64cd\u63a7\u8bed\u8a00(Data Manipulation Language\uff0cDML)\u8bed\u53e5\u5bf9\u8868\u683c\u6267\u884c\u8bed\u53e5\u7684\u5b58\u50a8\u8fc7\u7a0b\u3002\u4f8b\u5982\uff0c\u5982\u679c\u6211\u6709\u4e00\u4e2a\u7528\u4e8eTableA \u7684INSTEAD-OF-UPDATE<\/code> \u89e6\u53d1\u5668\uff0c\u540c\u65f6\u5bf9\u8fd9\u4e2a\u8868\u683c\u6267\u884c\u4e00\u4e2a\u66f4\u65b0\u8bed\u53e5\uff0c\u90a3\u4e48INSTEAD-OF-UPDATE<\/code>\u89e6\u53d1\u5668\u91cc\u7684\u4ee3\u7801\u4f1a\u6267\u884c\uff0c\u800c\u4e0d\u662f\u6211\u6267\u884c\u7684\u66f4\u65b0\u8bed\u53e5\u5219\u4e0d\u4f1a\u6267\u884c\u64cd\u4f5c\u3002<\/p>\n

AFTER\u89e6\u53d1\u5668\u8981\u5728DML\u8bed\u53e5\u5728\u6570\u636e\u5e93\u91cc\u4f7f\u7528\u4e4b\u540e\u624d\u6267\u884c\u3002\u8fd9\u4e9b\u7c7b\u578b\u7684\u89e6\u53d1\u5668\u5bf9\u4e8e\u76d1\u89c6\u53d1\u751f\u5728\u6570\u636e\u5e93\u8868\u683c\u91cc\u7684\u6570\u636e\u53d8\u5316\u5341\u5206\u597d\u7528\u3002<\/p>\n

\u60a8\u5982\u4f55\u786e\u4e00\u4e2a\u5e26\u6709\u540d\u4e3aFld1\u5b57\u6bb5\u7684TableB\u8868\u683c\u91cc\u53ea\u5177\u6709Fld1\u5b57\u6bb5\u91cc\u7684\u90a3\u4e9b\u503c\uff0c\u800c\u8fd9\u4e9b\u503c\u540c\u65f6\u5728\u540d\u4e3aTableA\u7684\u8868\u683c\u7684Fld1\u5b57\u6bb5\u91cc?<\/p>\n

\u8fd9\u4e2a\u4e0e\u5173\u7cfb\u76f8\u5173\u7684\u95ee\u9898\u6709\u4e24\u4e2a\u53ef\u80fd\u7684\u7b54\u6848\u3002\u7b2c\u4e00\u4e2a\u7b54\u6848(\u800c\u4e14\u662f\u60a8\u5e0c\u671b\u542c\u5230\u7684\u7b54\u6848)\u662f\u4f7f\u7528\u5916\u952e\u9650\u5236\u3002\u5916\u952e\u9650\u5236\u7528\u6765\u7ef4\u62a4\u5f15\u7528\u7684\u5b8c\u6574\u6027\u3002\u5b83\u88ab\u7528\u6765\u786e\u4fdd\u8868\u683c\u91cc\u7684\u5b57\u6bb5\u53ea\u4fdd\u5b58\u6709\u5df2\u7ecf\u5728\u4e0d\u540c\u7684(\u6216\u8005\u76f8\u540c\u7684)\u8868\u683c\u91cc\u7684\u53e6\u4e00\u4e2a\u5b57\u6bb5\u91cc\u5b9a\u4e49\u4e86\u7684\u503c\u3002\u8fd9\u4e2a\u5b57\u6bb5\u5c31\u662f\u5019\u9009\u952e(\u901a\u5e38\u662f\u53e6\u5916\u4e00\u4e2a\u8868\u683c\u7684\u4e3b\u952e)\u3002<\/p>\n

\u53e6\u5916\u4e00\u79cd\u7b54\u6848\u662f\u89e6\u53d1\u5668\u3002\u89e6\u53d1\u5668\u53ef\u4ee5\u88ab\u7528\u6765\u4fdd\u8bc1\u4ee5\u53e6\u5916\u4e00\u79cd\u65b9\u5f0f\u5b9e\u73b0\u4e0e\u9650\u5236\u76f8\u540c\u7684\u4f5c\u7528\uff0c\u4f46\u662f\u5b83\u975e\u5e38\u96be\u8bbe\u7f6e\u4e0e\u7ef4\u62a4\uff0c\u800c\u4e14\u6027\u80fd\u4e00\u822c\u90fd\u5f88\u7cdf\u7cd5\u3002\u7531\u4e8e\u8fd9\u4e2a\u539f\u56e0\uff0c\u5fae\u8f6f\u5efa\u8bae\u5f00\u53d1\u4eba\u5458\u4f7f\u7528\u5916\u952e\u9650\u5236\u800c\u4e0d\u662f\u89e6\u53d1\u5668\u6765\u7ef4\u62a4\u5f15\u7528\u7684\u5b8c\u6574\u6027\u3002<\/p>\n

\u5bf9\u4e00\u4e2a\u6295\u5165\u4f7f\u7528\u7684\u5728\u7ebf\u4e8b\u52a1\u5904\u7406\u8868\u683c\u6709\u8fc7\u591a\u7d22\u5f15\u9700\u8981\u6709\u4ec0\u4e48\u6837\u7684\u6027\u80fd\u8003\u8651?<\/p>\n

\u5bf9\u4e00\u4e2a\u8868\u683c\u7684\u7d22\u5f15\u8d8a\u591a\uff0c\u6570\u636e\u5e93\u5f15\u64ce\u7528\u6765\u66f4\u65b0\u3001\u63d2\u5165\u6216\u8005\u5220\u9664\u6570\u636e\u6240\u9700\u8981\u7684\u65f6\u95f4\u5c31\u8d8a\u591a\uff0c\u56e0\u4e3a\u5728\u6570\u636e\u64cd\u63a7\u53d1\u751f\u7684\u65f6\u5019\u7d22\u5f15\u4e5f\u5fc5\u987b\u8981\u7ef4\u62a4\u3002<\/p>\n

\u4f60\u53ef\u4ee5\u7528\u4ec0\u4e48\u6765\u786e\u4fdd\u8868\u683c\u91cc\u7684\u5b57\u6bb5\u53ea\u63a5\u53d7\u7279\u5b9a\u8303\u56f4\u91cc\u7684\u503c?<\/p>\n

\u8fd9\u4e2a\u95ee\u9898\u53ef\u4ee5\u7528\u591a\u79cd\u65b9\u5f0f\u6765\u56de\u7b54\uff0c\u4f46\u662f\u53ea\u6709\u4e00\u4e2a\u7b54\u6848\u662f\u201c\u597d\u201d\u7b54\u6848\u3002\u60a8\u5e0c\u671b\u542c\u5230\u7684\u56de\u7b54\u662fCheck\u9650\u5236\uff0c\u5b83\u5728\u6570\u636e\u5e93\u8868\u683c\u91cc\u88ab\u5b9a\u4e49\uff0c\u7528\u6765\u9650\u5236\u8f93\u5165\u8be5\u5217\u7684\u503c\u3002<\/p>\n

\u89e6\u53d1\u5668\u4e5f\u53ef\u4ee5\u88ab\u7528\u6765\u9650\u5236\u6570\u636e\u5e93\u8868\u683c\u91cc\u7684\u5b57\u6bb5\u80fd\u591f\u63a5\u53d7\u7684\u503c\uff0c\u4f46\u662f\u8fd9\u79cd\u529e\u6cd5\u8981\u6c42\u89e6\u53d1\u5668\u5728\u8868\u683c\u91cc\u88ab\u5b9a\u4e49\uff0c\u8fd9\u53ef\u80fd\u4f1a\u5728\u67d0\u4e9b\u60c5\u51b5\u4e0b\u5f71\u54cd\u5230\u6027\u80fd\u3002\u56e0\u6b64\uff0c\u5fae\u8f6f\u5efa\u8bae\u4f7f\u7528Check\u9650\u5236\u800c\u4e0d\u662f\u5176\u4ed6\u7684\u65b9\u5f0f\u6765\u9650\u5236\u57df\u7684\u5b8c\u6574\u6027\u3002<\/p>\n

\u5982\u679c\u5e94\u8058\u8005\u80fd\u591f\u6b63\u786e\u5730\u56de\u7b54\u8fd9\u4e2a\u95ee\u9898\uff0c\u90a3\u4e48\u4ed6\u7684\u673a\u4f1a\u5c31\u975e\u5e38\u5927\u4e86\uff0c\u56e0\u4e3a\u8fd9\u8868\u660e\u4ed6\u4eec\u5177\u6709\u4f7f\u7528\u5b58\u50a8\u8fc7\u7a0b\u7684\u7ecf\u9a8c\u3002<\/p>\n

\u8fd4\u56de\u53c2\u6570\u603b\u662f\u7531\u5b58\u50a8\u8fc7\u7a0b\u8fd4\u56de\uff0c\u5b83\u7528\u6765\u8868\u793a\u5b58\u50a8\u8fc7\u7a0b\u662f\u6210\u529f\u8fd8\u662f\u5931\u8d25\u3002\u8fd4\u56de\u53c2\u6570\u603b\u662fINT\u6570\u636e\u7c7b\u578b\u3002<\/p>\n

OUTPUT\u53c2\u6570\u660e\u786e\u8981\u6c42\u7531\u5f00\u53d1\u4eba\u5458\u6765\u6307\u5b9a\uff0c\u5b83\u53ef\u4ee5\u8fd4\u56de\u5176\u4ed6\u7c7b\u578b\u7684\u6570\u636e\uff0c\u4f8b\u5982\u5b57\u7b26\u578b\u548c\u6570\u503c\u578b\u7684\u503c\u3002(\u53ef\u4ee5\u7528\u4f5c\u8f93\u51fa\u53c2\u6570\u7684\u6570\u636e\u7c7b\u578b\u662f\u6709\u4e00\u4e9b\u9650\u5236\u7684\u3002)\u60a8\u53ef\u4ee5\u5728\u4e00\u4e2a\u5b58\u50a8\u8fc7\u7a0b\u91cc\u4f7f\u7528\u591a\u4e2aOUTPUT\u53c2\u6570\uff0c\u800c\u60a8\u53ea\u80fd\u591f\u4f7f\u7528\u4e00\u4e2a\u8fd4\u56de\u53c2\u6570\u3002<\/p>\n

“`<\/p>\n","protected":false},"excerpt":{"rendered":"

“`\u8ba9\u672a\u6765\u7684\u6570\u636e\u5e93\u5f00\u53d1\u4eba\u5458\u77e5\u9053\u53ef\u7528\u7684\u89e6\u53d1\u5668\u7c7b\u578b\u4ee5\u53ca\u5982\u4f55\u5b9e\u73b0\u5b83\u4eec\u662f\u975e\u5e38\u6709\u76ca\u7684\u3002\u89e6\u53d1\u5668\u662f\u4e00\u79cd\u4e13\u7528\u7c7b\u578b\u7684 […]<\/p>\n","protected":false},"author":7,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-47831","post","type-post","status-publish","format-standard","hentry","category-c"],"_links":{"self":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/47831","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\/7"}],"replies":[{"embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/comments?post=47831"}],"version-history":[{"count":1,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/47831\/revisions"}],"predecessor-version":[{"id":47832,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/47831\/revisions\/47832"}],"wp:attachment":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/media?parent=47831"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/categories?post=47831"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/tags?post=47831"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}