{"id":152713,"date":"2024-11-02T01:24:19","date_gmt":"2024-11-01T17:24:19","guid":{"rendered":"https:\/\/server.hk\/cnblog\/152713\/"},"modified":"2024-11-02T01:24:20","modified_gmt":"2024-11-01T17:24:20","slug":"%e5%b8%b8%e8%a6%8b%e7%9a%84-sql-server-%e9%98%bb%e5%a1%9e%e6%83%85%e5%bd%a2%e6%9c%89%e5%93%aa%e4%ba%9b%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/152713\/","title":{"rendered":"\u5e38\u898b\u7684 SQL Server \u963b\u585e\u60c5\u5f62\u6709\u54ea\u4e9b\uff1f"},"content":{"rendered":"<h1 id=\"%e5%b8%b8%e8%a6%8b%e7%9a%84-sql-server-%e9%98%bb%e5%a1%9e%e6%83%85%e5%bd%a2%e6%9c%89%e5%93%aa%e4%ba%9b%ef%bc%9f-CXyvjXPyhE\">\u5e38\u898b\u7684 SQL Server \u963b\u585e\u60c5\u5f62\u6709\u54ea\u4e9b\uff1f<\/h1>\n<p>\u5728\u8cc7\u6599\u5eab\u7ba1\u7406\u4e2d\uff0cSQL Server \u7684\u963b\u585e\u554f\u984c\u662f\u4e00\u500b\u5e38\u898b\u4e14\u68d8\u624b\u7684\u6311\u6230\u3002\u7576\u591a\u500b\u4f7f\u7528\u8005\u6216\u61c9\u7528\u7a0b\u5f0f\u540c\u6642\u8a2a\u554f\u8cc7\u6599\u5eab\u6642\uff0c\u53ef\u80fd\u6703\u51fa\u73fe\u963b\u585e\u60c5\u6cc1\uff0c\u5c0e\u81f4\u7cfb\u7d71\u6027\u80fd\u4e0b\u964d\uff0c\u751a\u81f3\u5f71\u97ff\u696d\u52d9\u904b\u4f5c\u3002\u672c\u6587\u5c07\u63a2\u8a0e SQL Server \u4e2d\u5e38\u898b\u7684\u963b\u585e\u60c5\u5f62\u53ca\u5176\u89e3\u6c7a\u65b9\u6848\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%af-sql-server-%e9%98%bb%e5%a1%9e%ef%bc%9f-CXyvjXPyhE\">\u4ec0\u9ebc\u662f SQL Server \u963b\u585e\uff1f<\/h2>\n<p>SQL Server \u963b\u585e\u662f\u6307\u7576\u4e00\u500b\u4ea4\u6613\u6b63\u5728\u4f7f\u7528\u67d0\u500b\u8cc7\u6e90\uff08\u5982\u8cc7\u6599\u884c\u6216\u8868\u683c\uff09\u6642\uff0c\u5176\u4ed6\u4ea4\u6613\u7121\u6cd5\u8a2a\u554f\u8a72\u8cc7\u6e90\uff0c\u5f9e\u800c\u5c0e\u81f4\u7b49\u5f85\u3002\u9019\u7a2e\u60c5\u6cc1\u901a\u5e38\u767c\u751f\u5728\u591a\u500b\u4ea4\u6613\u540c\u6642\u57f7\u884c\u6642\uff0c\u7279\u5225\u662f\u5728\u9ad8\u4f75\u767c\u74b0\u5883\u4e2d\u3002<\/p>\n<h2 id=\"%e5%b8%b8%e8%a6%8b%e7%9a%84-sql-server-%e9%98%bb%e5%a1%9e%e6%83%85%e5%bd%a2-CXyvjXPyhE\">\u5e38\u898b\u7684 SQL Server \u963b\u585e\u60c5\u5f62<\/h2>\n<h3 id=\"1-%e9%8e%96%e5%ae%9a%e9%98%bb%e5%a1%9e-CXyvjXPyhE\">1. \u9396\u5b9a\u963b\u585e<\/h3>\n<p>\u9396\u5b9a\u662f SQL Server \u7528\u4f86\u4fdd\u8b77\u8cc7\u6599\u5b8c\u6574\u6027\u7684\u4e00\u7a2e\u6a5f\u5236\u3002\u7576\u4e00\u500b\u4ea4\u6613\u7372\u5f97\u9396\u5b9a\u5f8c\uff0c\u5176\u4ed6\u4ea4\u6613\u5fc5\u9808\u7b49\u5f85\u8a72\u9396\u5b9a\u91cb\u653e\u3002\u9396\u5b9a\u7684\u985e\u578b\u5305\u62ec\uff1a<\/p>\n<ul>\n<li><strong>\u5171\u4eab\u9396\uff08Shared Lock\uff09<\/strong>\uff1a\u5141\u8a31\u591a\u500b\u4ea4\u6613\u540c\u6642\u8b80\u53d6\u8cc7\u6599\uff0c\u4f46\u4e0d\u5141\u8a31\u4fee\u6539\u3002<\/li>\n<li><strong>\u6392\u4ed6\u9396\uff08Exclusive Lock\uff09<\/strong>\uff1a\u53ea\u5141\u8a31\u4e00\u500b\u4ea4\u6613\u4fee\u6539\u8cc7\u6599\uff0c\u5176\u4ed6\u4ea4\u6613\u5fc5\u9808\u7b49\u5f85\u3002<\/li>\n<\/ul>\n<p>\u4f8b\u5982\uff0c\u7576\u4ea4\u6613 A \u7372\u5f97\u6392\u4ed6\u9396\u4ee5\u66f4\u65b0\u67d0\u884c\u8cc7\u6599\u6642\uff0c\u4ea4\u6613 B \u5617\u8a66\u8b80\u53d6\u8a72\u884c\u8cc7\u6599\u6642\u5c07\u6703\u88ab\u963b\u585e\uff0c\u76f4\u5230\u4ea4\u6613 A \u5b8c\u6210\u4e26\u91cb\u653e\u9396\u5b9a\u3002<\/p>\n<h3 id=\"2-%e6%ad%bb%e9%8e%96-CXyvjXPyhE\">2. \u6b7b\u9396<\/h3>\n<p>\u6b7b\u9396\u662f\u6307\u5169\u500b\u6216\u591a\u500b\u4ea4\u6613\u4e92\u76f8\u7b49\u5f85\u5c0d\u65b9\u91cb\u653e\u9396\u5b9a\uff0c\u5c0e\u81f4\u6240\u6709\u4ea4\u6613\u7121\u6cd5\u7e7c\u7e8c\u57f7\u884c\u3002\u9019\u7a2e\u60c5\u6cc1\u901a\u5e38\u9700\u8981 SQL Server \u81ea\u52d5\u6aa2\u6e2c\u4e26\u7d42\u6b62\u5176\u4e2d\u4e00\u500b\u4ea4\u6613\u4ee5\u89e3\u6c7a\u554f\u984c\u3002<\/p>\n<pre><code>-- \u5047\u8a2d\u4ea4\u6613 A \u548c\u4ea4\u6613 B \u4e92\u76f8\u7b49\u5f85\nBEGIN TRANSACTION A\n    UPDATE Table1 SET Column1 = 'Value1' WHERE ID = 1;\n    \nBEGIN TRANSACTION B\n    UPDATE Table2 SET Column2 = 'Value2' WHERE ID = 2;\n<\/code><\/pre>\n<p>\u5728\u9019\u7a2e\u60c5\u6cc1\u4e0b\uff0c\u4ea4\u6613 A \u53ef\u80fd\u6301\u6709 Table2 \u7684\u9396\uff0c\u800c\u4ea4\u6613 B \u6301\u6709 Table1 \u7684\u9396\uff0c\u5c0e\u81f4\u6b7b\u9396\u7684\u767c\u751f\u3002<\/p>\n<h3 id=\"3-%e9%95%b7%e6%99%82%e9%96%93%e5%9f%b7%e8%a1%8c%e7%9a%84%e6%9f%a5%e8%a9%a2-CXyvjXPyhE\">3. \u9577\u6642\u9593\u57f7\u884c\u7684\u67e5\u8a62<\/h3>\n<p>\u7576\u67d0\u4e9b\u67e5\u8a62\u57f7\u884c\u6642\u9593\u904e\u9577\u6642\uff0c\u53ef\u80fd\u6703\u5c0e\u81f4\u5176\u4ed6\u67e5\u8a62\u88ab\u963b\u585e\u3002\u4f8b\u5982\uff0c\u8907\u96dc\u7684 JOIN \u64cd\u4f5c\u6216\u672a\u7d93\u512a\u5316\u7684\u67e5\u8a62\u53ef\u80fd\u6703\u4f54\u7528\u5927\u91cf\u8cc7\u6e90\uff0c\u5f9e\u800c\u5f71\u97ff\u5176\u4ed6\u4ea4\u6613\u7684\u57f7\u884c\u3002<\/p>\n<pre><code>SELECT * FROM Table1\nJOIN Table2 ON Table1.ID = Table2.ID\nWHERE Table1.Column1 = 'SomeValue';\n<\/code><\/pre>\n<p>\u5728\u9019\u7a2e\u60c5\u6cc1\u4e0b\uff0c\u61c9\u8003\u616e\u5c0d\u67e5\u8a62\u9032\u884c\u512a\u5316\uff0c\u6216\u4f7f\u7528\u7d22\u5f15\u4f86\u63d0\u9ad8\u67e5\u8a62\u6027\u80fd\u3002<\/p>\n<h3 id=\"4-%e4%ba%a4%e6%98%93%e7%af%84%e5%9c%8d%e9%81%8e%e5%a4%a7-CXyvjXPyhE\">4. \u4ea4\u6613\u7bc4\u570d\u904e\u5927<\/h3>\n<p>\u5982\u679c\u4ea4\u6613\u7bc4\u570d\u904e\u5927\uff0c\u53ef\u80fd\u6703\u5c0e\u81f4\u9396\u5b9a\u6642\u9593\u904e\u9577\uff0c\u5f9e\u800c\u589e\u52a0\u963b\u585e\u7684\u98a8\u96aa\u3002\u6700\u4f73\u5be6\u8e10\u662f\u5c07\u4ea4\u6613\u7bc4\u570d\u7e2e\u5c0f\uff0c\u78ba\u4fdd\u5feb\u901f\u63d0\u4ea4\u6216\u56de\u6efe\u3002<\/p>\n<pre><code>BEGIN TRANSACTION\n    -- \u57f7\u884c\u591a\u500b\u64cd\u4f5c\n    UPDATE Table1 SET Column1 = 'Value1' WHERE ID = 1;\n    UPDATE Table2 SET Column2 = 'Value2' WHERE ID = 2;\nCOMMIT TRANSACTION;\n<\/code><\/pre>\n<p>\u5728\u9019\u7a2e\u60c5\u6cc1\u4e0b\uff0c\u61c9\u8003\u616e\u5c07\u6bcf\u500b\u64cd\u4f5c\u5206\u958b\uff0c\u4e26\u5728\u6bcf\u500b\u64cd\u4f5c\u5f8c\u7acb\u5373\u63d0\u4ea4\u3002<\/p>\n<h2 id=\"%e8%a7%a3%e6%b1%ba-sql-server-%e9%98%bb%e5%a1%9e%e5%95%8f%e9%a1%8c%e7%9a%84%e6%96%b9%e6%b3%95-CXyvjXPyhE\">\u89e3\u6c7a SQL Server \u963b\u585e\u554f\u984c\u7684\u65b9\u6cd5<\/h2>\n<ul>\n<li>\u5b9a\u671f\u76e3\u63a7\u548c\u5206\u6790\u9396\u5b9a\u60c5\u6cc1\uff0c\u4f7f\u7528 SQL Server \u7684\u52d5\u614b\u7ba1\u7406\u8996\u5716\uff08DMV\uff09\u4f86\u6aa2\u67e5\u7576\u524d\u7684\u9396\u5b9a\u548c\u963b\u585e\u60c5\u6cc1\u3002<\/li>\n<li>\u512a\u5316\u67e5\u8a62\u6027\u80fd\uff0c\u78ba\u4fdd\u4f7f\u7528\u9069\u7576\u7684\u7d22\u5f15\u548c\u67e5\u8a62\u8a08\u5283\u3002<\/li>\n<li>\u7e2e\u5c0f\u4ea4\u6613\u7bc4\u570d\uff0c\u907f\u514d\u9577\u6642\u9593\u6301\u6709\u9396\u5b9a\u3002<\/li>\n<li>\u8003\u616e\u4f7f\u7528\u975e\u9396\u5b9a\u8b80\u53d6\uff08\u5982 READ UNCOMMITTED \u9694\u96e2\u7d1a\u5225\uff09\u4f86\u6e1b\u5c11\u963b\u585e\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-CXyvjXPyhE\">\u7e3d\u7d50<\/h2>\n<p>SQL Server \u7684\u963b\u585e\u554f\u984c\u53ef\u80fd\u6703\u5c0d\u7cfb\u7d71\u6027\u80fd\u9020\u6210\u91cd\u5927\u5f71\u97ff\uff0c\u4e86\u89e3\u5e38\u898b\u7684\u963b\u585e\u60c5\u5f62\u53ca\u5176\u89e3\u6c7a\u65b9\u6848\u662f\u6bcf\u4f4d\u8cc7\u6599\u5eab\u7ba1\u7406\u54e1\u7684\u91cd\u8981\u4efb\u52d9\u3002\u900f\u904e\u6709\u6548\u7684\u76e3\u63a7\u548c\u512a\u5316\u63aa\u65bd\uff0c\u53ef\u4ee5\u6e1b\u5c11\u963b\u585e\u60c5\u6cc1\u7684\u767c\u751f\uff0c\u63d0\u5347\u7cfb\u7d71\u7684\u6574\u9ad4\u6548\u80fd\u3002\u5982\u679c\u60a8\u9700\u8981\u9032\u4e00\u6b65\u7684\u6280\u8853\u652f\u6301\u6216\u5c0b\u627e\u9ad8\u6548\u7684 <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u89e3\u6c7a\u65b9\u6848\uff0c\u8acb\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u4ee5\u7372\u53d6\u66f4\u591a\u8cc7\u8a0a\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e86\u89e3\u5e38\u898b\u7684 SQL Server \u963b\u585e\u60c5\u5f62\uff0c\u5305\u62ec\u9396\u5b9a\u3001\u6b7b\u9396\u53ca\u8cc7\u6e90\u7af6\u722d\uff0c\u5e6b\u52a9\u512a\u5316\u8cc7\u6599\u5eab\u6027\u80fd\u8207\u67e5\u8a62\u6548\u7387\u3002<\/p>\n","protected":false},"author":0,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-152713","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/152713","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=152713"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/152713\/revisions"}],"predecessor-version":[{"id":152714,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/152713\/revisions\/152714"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=152713"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=152713"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=152713"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}