{"id":139304,"date":"2024-10-31T18:27:19","date_gmt":"2024-10-31T10:27:19","guid":{"rendered":"https:\/\/server.hk\/cnblog\/139304\/"},"modified":"2024-10-31T18:27:20","modified_gmt":"2024-10-31T10:27:20","slug":"sql-server%e6%95%b8%e6%93%9a%e5%ba%ab%e7%9a%84%e8%a1%8c%e7%bf%bb%e8%bd%89%e6%8a%80%e8%a1%93%ef%bc%88sqlserver%e8%a1%8c%e7%bf%bb%e8%bd%89%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/139304\/","title":{"rendered":"SQL Server\u6578\u64da\u5eab\u7684\u884c\u7ffb\u8f49\u6280\u8853\uff08sqlserver\u884c\u7ffb\u8f49\uff09"},"content":{"rendered":"<h1 id=\"sql-server%e6%95%b8%e6%93%9a%e5%ba%ab%e7%9a%84%e8%a1%8c%e7%bf%bb%e8%bd%89%e6%8a%80%e8%a1%93%ef%bc%88sqlserver%e8%a1%8c%e7%bf%bb%e8%bd%89%ef%bc%89-pDGXjBrryy\">SQL Server\u6578\u64da\u5eab\u7684\u884c\u7ffb\u8f49\u6280\u8853\uff08sqlserver\u884c\u7ffb\u8f49\uff09<\/h1>\n<p>\u5728\u6578\u64da\u5eab\u7ba1\u7406\u7cfb\u7d71\u4e2d\uff0cSQL Server\u662f\u4e00\u500b\u5ee3\u6cdb\u4f7f\u7528\u7684\u95dc\u806f\u6578\u64da\u5eab\u7ba1\u7406\u7cfb\u7d71\uff0c\u7279\u5225\u662f\u5728\u4f01\u696d\u74b0\u5883\u4e2d\u3002\u96a8\u8457\u6578\u64da\u91cf\u7684\u589e\u52a0\uff0c\u5982\u4f55\u6709\u6548\u5730\u7ba1\u7406\u548c\u67e5\u8a62\u6578\u64da\u6210\u70ba\u4e86\u4e00\u500b\u91cd\u8981\u7684\u8ab2\u984c\u3002\u884c\u7ffb\u8f49\u6280\u8853\uff08Row-Level Compression\uff09\u662fSQL Server\u4e2d\u4e00\u7a2e\u6709\u6548\u7684\u6578\u64da\u58d3\u7e2e\u6280\u8853\uff0c\u65e8\u5728\u63d0\u9ad8\u5b58\u5132\u6548\u7387\u548c\u67e5\u8a62\u6027\u80fd\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%af%e8%a1%8c%e7%bf%bb%e8%bd%89%e6%8a%80%e8%a1%93%ef%bc%9f-pDGXjBrryy\">\u4ec0\u9ebc\u662f\u884c\u7ffb\u8f49\u6280\u8853\uff1f<\/h2>\n<p>\u884c\u7ffb\u8f49\u6280\u8853\u662f\u6307\u5728SQL 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Server\u6703\u81ea\u52d5\u6aa2\u6e2c\u6578\u64da\u7684\u6a21\u5f0f\uff0c\u4e26\u6839\u64da\u9019\u4e9b\u6a21\u5f0f\u9078\u64c7\u5408\u9069\u7684\u58d3\u7e2e\u7b97\u6cd5\u3002\u9019\u4e9b\u7b97\u6cd5\u5305\u62ec\uff1a<\/p>\n<ul>\n<li><strong>\u5b57\u5178\u7de8\u78bc\uff08Dictionary Encoding\uff09<\/strong>\uff1a\u5c07\u91cd\u8907\u7684\u6578\u64da\u503c\u66ff\u63db\u70ba\u77ed\u7684\u4ee3\u78bc\u3002<\/li>\n<li><strong>\u4f4d\u5716\u7d22\u5f15\uff08Bitmap Indexing\uff09<\/strong>\uff1a\u5c0d\u65bc\u4f4e\u57fa\u6578\u7684\u5217\uff0c\u4f7f\u7528\u4f4d\u5716\u4f86\u8868\u793a\u6578\u64da\u7684\u5b58\u5728\u8207\u5426\u3002<\/li>\n<li><strong>\u884c\u58d3\u7e2e\uff08Row Compression\uff09<\/strong>\uff1a\u901a\u904e\u79fb\u9664\u4e0d\u5fc5\u8981\u7684\u7a7a\u9593\u4f86\u6e1b\u5c11\u884c\u7684\u5927\u5c0f\u3002<\/li>\n<\/ul>\n<p>\u9019\u4e9b\u6280\u8853\u7684\u7d50\u5408\u4f7f\u5f97SQL Server\u80fd\u5920\u5728\u4e0d\u5f71\u97ff\u6578\u64da\u5b8c\u6574\u6027\u7684\u60c5\u6cc1\u4e0b\uff0c\u986f\u8457\u6e1b\u5c11\u6578\u64da\u7684\u5b58\u5132\u9700\u6c42\u3002<\/p>\n<h2 id=\"%e8%a1%8c%e7%bf%bb%e8%bd%89%e7%9a%84%e5%84%aa%e5%8b%a2-pDGXjBrryy\">\u884c\u7ffb\u8f49\u7684\u512a\u52e2<\/h2>\n<p>\u884c\u7ffb\u8f49\u6280\u8853\u7684\u4e3b\u8981\u512a\u52e2\u5305\u62ec\uff1a<\/p>\n<ul>\n<li><strong>\u7bc0\u7701\u5b58\u5132\u7a7a\u9593<\/strong>\uff1a\u901a\u904e\u58d3\u7e2e\u6578\u64da\uff0c\u884c\u7ffb\u8f49\u53ef\u4ee5\u986f\u8457\u6e1b\u5c11\u6578\u64da\u5eab\u7684\u5b58\u5132\u9700\u6c42\u3002<\/li>\n<li><strong>\u63d0\u9ad8\u67e5\u8a62\u6027\u80fd<\/strong>\uff1a\u58d3\u7e2e\u5f8c\u7684\u6578\u64da\u53ef\u4ee5\u6e1b\u5c11I\/O\u64cd\u4f5c\uff0c\u5f9e\u800c\u63d0\u9ad8\u67e5\u8a62\u7684\u901f\u5ea6\u3002<\/li>\n<li><strong>\u964d\u4f4e\u6210\u672c<\/strong>\uff1a\u7bc0\u7701\u7684\u5b58\u5132\u7a7a\u9593\u53ef\u4ee5\u964d\u4f4e\u786c\u9ad4\u6210\u672c\uff0c\u7279\u5225\u662f\u5728\u96f2\u74b0\u5883\u4e2d\u3002<\/li>\n<\/ul>\n<h2 id=\"%e5%a6%82%e4%bd%95%e5%95%9f%e7%94%a8%e8%a1%8c%e7%bf%bb%e8%bd%89%e6%8a%80%e8%a1%93-pDGXjBrryy\">\u5982\u4f55\u555f\u7528\u884c\u7ffb\u8f49\u6280\u8853<\/h2>\n<p>\u5728SQL Server\u4e2d\uff0c\u555f\u7528\u884c\u7ffb\u8f49\u6280\u8853\u76f8\u5c0d\u7c21\u55ae\u3002\u7528\u6236\u53ef\u4ee5\u901a\u904e\u4ee5\u4e0bSQL\u8a9e\u53e5\u4f86\u555f\u7528\u884c\u58d3\u7e2e\uff1a<\/p>\n<pre><code>ALTER TABLE \u8868\u540d\nREBUILD WITH (DATA_COMPRESSION = ROW);<\/code><\/pre>\n<p>\u9019\u689d\u8a9e\u53e5\u5c07\u5c0d\u6307\u5b9a\u7684\u8868\u9032\u884c\u91cd\u5efa\uff0c\u4e26\u555f\u7528\u884c\u58d3\u7e2e\u3002\u7528\u6236\u9084\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u8a9e\u53e5\u4f86\u6aa2\u67e5\u8868\u7684\u58d3\u7e2e\u72c0\u614b\uff1a<\/p>\n<pre><code>EXEC sp_spaceused '\u8868\u540d';<\/code><\/pre>\n<h2 id=\"%e7%b5%90%e8%ab%96-pDGXjBrryy\">\u7d50\u8ad6<\/h2>\n<p>\u884c\u7ffb\u8f49\u6280\u8853\u5728SQL Server\u4e2d\u662f\u4e00\u7a2e\u5f37\u5927\u7684\u6578\u64da\u58d3\u7e2e\u5de5\u5177\uff0c\u80fd\u5920\u6709\u6548\u5730\u63d0\u9ad8\u6578\u64da\u5b58\u5132\u7684\u6548\u7387\u548c\u67e5\u8a62\u6027\u80fd\u3002\u96a8\u8457\u6578\u64da\u91cf\u7684\u6301\u7e8c\u589e\u9577\uff0c\u9019\u7a2e\u6280\u8853\u5c07\u5728\u6578\u64da\u5eab\u7ba1\u7406\u4e2d\u626e\u6f14\u8d8a\u4f86\u8d8a\u91cd\u8981\u7684\u89d2\u8272\u3002\u5c0d\u65bc\u5e0c\u671b\u512a\u5316\u5176\u6578\u64da\u5eab\u6027\u80fd\u7684\u4f01\u696d\u4f86\u8aaa\uff0c\u4e86\u89e3\u548c\u61c9\u7528\u884c\u7ffb\u8f49\u6280\u8853\u662f\u975e\u5e38\u5fc5\u8981\u7684\u3002<\/p>\n<p>\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u9ad8\u6548\u7684\u6578\u64da\u5eab\u89e3\u6c7a\u65b9\u6848\uff0c\u8003\u616e\u4f7f\u7528<a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a>\u4f86\u652f\u6301\u60a8\u7684SQL Server\u6578\u64da\u5eab\uff0c\u9019\u5c07\u6709\u52a9\u65bc\u63d0\u5347\u60a8\u7684\u696d\u52d9\u904b\u71df\u6548\u7387\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22SQL Server\u6578\u64da\u5eab\u7684\u884c\u7ffb\u8f49\u6280\u8853\uff0c\u63d0\u5347\u6578\u64da\u8655\u7406\u6548\u7387\uff0c\u512a\u5316\u67e5\u8a62\u6027\u80fd\uff0c\u5be6\u73fe\u66f4\u5feb\u7684\u6578\u64da\u5b58\u53d6\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-139304","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/139304","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=139304"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/139304\/revisions"}],"predecessor-version":[{"id":139305,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/139304\/revisions\/139305"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=139304"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=139304"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=139304"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}