{"id":1167,"date":"2024-09-25T16:35:00","date_gmt":"2024-09-25T08:35:00","guid":{"rendered":"https:\/\/note.ui11.cc\/?p=1167"},"modified":"2024-09-25T16:35:01","modified_gmt":"2024-09-25T08:35:01","slug":"mysql%e7%b4%a2%e5%bc%95%ef%bc%8c%e8%b0%83%e4%bc%98","status":"publish","type":"post","link":"https:\/\/note.ui11.cc\/index.php\/2024\/09\/25\/mysql%e7%b4%a2%e5%bc%95%ef%bc%8c%e8%b0%83%e4%bc%98\/","title":{"rendered":"Mysql\u7d22\u5f15\uff0c\u8c03\u4f18"},"content":{"rendered":"\n

index:\u7d22\u5f15<\/p>\n\n\n\n

\u6570\u636e\u5e93\u7684\u7d22\u5f15\u662f\u6570\u636e\u5e93\u7ba1\u7406\u7cfb\u7edf\u91cc\u9762\u7ecf\u8fc7 \u6392\u5e8f\u7684\u6570\u636e\u7ed3\u6784<\/p>\n\n\n\n

\u7d22\u5f15\u670d\u52a1\u5bf9\u8c61\u662fselect \u67e5\u8be2<\/p>\n\n\n\n

\u66f4\u65b0\u8bed\u53e5\u5176\u5b9e\u662f\u5148\u67e5\u51fa\u6570\u636e\uff0c\u66f4\u6539\u6570\u636e\u7136\u540e\u8fd4\u56de\u78c1\u76d8\uff0c\u5982\u679c\u6211\u4eec\u5bf9\u67e5\u8be2\u505a\u4e86\u4f18\u5316\uff0c\u90a3\u4e48\u66f4\u65b0\uff0c\u5220\u9664\uff0c\u90fd\u4f1a\u53d8\u5feb\uff0c\u5b83\u662f\u6570\u636e\u7ed3\u6784\uff0c\u5fc5\u7136\u5360\u636e\u7a7a\u95f4\uff0c\u662f\u4e00\u4e2a\u5178\u578b\u7684\u7a7a\u95f4\u6362\u65f6\u95f4\u7684\u4e00\u4e2a\u6848\u4f8b<\/p>\n\n\n\n

\u7d22\u5f15\u7684\u8bdd\u5176\u5b9e\u662f\u4e00\u4e2a key value\u7684\u503c\uff0c\u5982\u56fe\uff1a<\/p>\n\n\n\n

\"\"<\/div><\/figure>\n\n\n\n

\u503c\u7684\u8bdd\u5bf9\u5e94\u7684\u662f\u4e00\u6761\u6570\u636e\u7684\u78c1\u76d8\u5730\u5740\uff0c\u7136\u540e\u952e\u7684\u8bdd\u5c31\u5bf9\u5e94\u7684\u662f\u952e\u503c<\/p>\n\n\n\n

\u7d22\u5f15\u7684\u521b\u5efa\u65b9\u5f0f\uff1a<\/strong><\/p>\n\n\n\n

\u4e00\uff1aSQL\u8bed\u53e5\u521b\u5efa<\/p>\n\n\n\n

ALTER TABLE user_innodb ADD INDEX in_name(name)<\/p>\n\n\n\n

()\u4e2d\u7684name\u5176\u5b9e\u5c31\u662f\u6211\u4eec\u7684\u7d22\u5f15\u8981\u7ed1\u5b9a\u5f97\u5b57\u6bb5<\/p>\n\n\n\n

\u4e8c\uff1a\u5efa\u8868\u7684\u65f6\u5019\u518d\u76f4\u63a5\u628a\u7d22\u5f15\u7ed9\u52a0\u4e0a\uff0c\u53bb\u6307\u5b9a\u7d22\u5f15<\/p>\n\n\n\n

\u4e09\uff1a\u7528\u754c\u9762\u8bdd\u5de5\u5177\u53bb\u6307\u5b9a\u7d22\u5f15<\/p>\n\n\n\n

\u7d22\u5f15\u7c7b\u578b\uff1a<\/strong><\/p>\n\n\n\n

\u4e00\uff1a\u666e\u901a\u7d22\u5f15<\/p>\n\n\n\n

\u4e8c\uff1a\u552f\u4e00\u7d22\u5f15 +\u552f\u4e00\u7ea6\u675f<\/p>\n\n\n\n

\u4e09\uff1a\u4e3b\u952e\u7d22\u5f15 +\u975e\u7a7a\u7ea6\u675f<\/p>\n\n\n\n

\u56db\uff1a\u5168\u6587\u7d22\u5f15 <\/p>\n\n\n\n

\u7279\u6b8a\u7684sql <\/p>\n\n\n\n

select *from \u8868\u540d where match(\u5b57\u6bb5\u540d) against(‘\u6cb3\u5357\u7267\u4e1a\u7ecf\u6d4e\u5b66\u9662’ IN NATURAL LANGUAGE MODE);<\/p>\n\n\n\n

\u4e00\u822c\u6211\u4eec\u7528 es slor\u5f15\u64ce <\/p>\n\n\n\n

\u4ec0\u4e48\u6570\u636e\u7ed3\u6784\u624d\u80fd\u5e2e\u52a9\u6211\u4eec\u5feb\u901f\u68c0\u7d22\u6570\u636e\u5462?<\/p>\n\n\n\n

\u8981\u60f3\u7528\u5230\u68c0\u7d22\uff0c\u5fc5\u987b\u8981\u6709\u5e8f\uff0c\u5176\u5b9e\u7d22\u5f15\u7528\u7684\u5c31\u662f\u4e8c\u5206\u6298\u534a\u67e5\u627e<\/p>\n\n\n\n

\u6709\u4e00\u79cd\u6570\u636e\u7ed3\u6784\u5c31\u7b26\u5408\u8fd9\u79cd\u7279\u70b9\uff0c\u90a3\u5c31\u662f\u4e8c\u53c9\u67e5\u627e\u6811<\/p>\n\n\n\n

\"\"<\/div><\/figure>\n\n\n\n

\u4e8c\u53c9\u67e5\u627e\u6811\u5de6\u53f6\u5b50\u8282\u70b9\u5c0f\u4e8e\u7236\u8282\u70b9\uff0c\u53f3\u53f6\u5b50\u8282\u70b9\u5927\u4e8e\u7236\u8282\u70b9<\/p>\n\n\n\n

\u5982\u679c\u5c31\u662f\u4e8c\u53c9\u67e5\u627e\u6811\u5c31\u662f\u4e00\u76f4\u5728\u4e00\u8fb9\u8fdb\u884c\u6392\u5217\uff0c\u6bd4\u5982\u659c\u6811\uff0c<\/p>\n\n\n\n

\"\"<\/div><\/figure>\n\n\n\n

\u8fd9\u6837\u5c31\u6210\u4e86\u5355\u94fe\u8868\u7684\u7ed3\u6784\u4e86<\/p>\n\n\n\n

\u90a3\u4e48\u4e8c\u53c9\u6811\u5c06\u53d8\u5f97\u6beb\u65e0\u610f\u4e49\uff0c\u6240\u4ee5\u5982\u4f55\u89e3\u51b3\u5462\uff1f<\/p>\n\n\n\n

\u6211\u4eec\u7528\u5e73\u8861\u4e8c\u53c9\u6811\uff08Balanced Binary Search Tree\uff09\u53c8\u79f0AVL\u6811<\/p>\n\n\n\n

\"\"<\/div><\/figure>\n\n\n\n

\u90a3\u4e48\u5e73\u8861\u4e8c\u53c9\u6811\u5982\u4f55\u89e3\u51b3\u8fd9\u4e00\u95ee\u9898\u7684\u5462\uff1f\u5176\u5b9e\u7528\u7684\u5c31\u662f\u4e8c\u53c9\u6811\u5de6\u65cb\u8fd8\u6709\u53f3\u65cb<\/p>\n\n\n\n

\u4e00\u65e6\u53d1\u73b0\u5de6\u5de6\u578b\u7684\u6570\u636e\u7ed3\u6784\u5c31\u4f1a\u53f3\u65cb<\/p>\n\n\n\n

\"\"<\/div><\/figure>\n\n\n\n

\u4e00\u65e6\u53d1\u73b0\u53f3\u6709\u578b\u7684\u6570\u636e\u7ed3\u6784\u5c31\u4f1a\u5de6\u65cb<\/p>\n\n\n\n

\"\"<\/div><\/figure>\n\n\n\n

innob\u5b58\u50a8\u5f15\u64ce\u4e00\u6b21\u4ece\u78c1\u76d8\u62ff16k\u6570\u636e\u5230\u5185\u5b58<\/p>\n\n\n\n

16K=16384\u5b57\u8282 redis\u5c31\u662f16384\u4e2a\u69fd\u4f4d<\/p>\n\n\n\n

\u7528\u4e8c\u53c9\u6811\u592a\u6d6a\u8d39\u7a7a\u95f4\uff0c\u6240\u4ee5\u6211\u4eec\u7528\u591a\u53c9\u6811\uff0c\u591a\u53c9\u6811\u53ef\u4ee5\u5206\u5f88\u591a\u5b50\u6811<\/p>\n\n\n\n

\"\"<\/div><\/figure>\n\n\n\n

B\u6811\uff08\u591a\u53c9\u6811\uff09\uff1a<\/strong>\u901a\u8fc7\u4e0d\u65ad\u5206\u94fe\u6765\u4fdd\u8bc1\u8fd9\u79cd\u6570\u636e\u7ed3\u6784<\/p>\n\n\n\n

\u4e0d\u65ad\u5728\u5206\u88c2\uff0c\u5408\u5e76\u6765\u4fdd\u8bc1\u6211\u4eec\u7684\u6570\u636e\u5b58\u50a8<\/p>\n\n\n\n

\"\"<\/div><\/figure>\n\n\n\n

Mysql\u4e2d\u7528\u5230\u7684B\u6811\uff1aBTREE<\/p>\n\n\n\n

\"\"<\/div><\/figure>\n\n\n\n

B\u6811\u7ed3\u6784\uff1a
<\/p>\n\n\n\n

\"\"<\/div><\/figure>\n\n\n\n

B+\u6811\uff1a<\/strong><\/p>\n\n\n\n

\"\"<\/div><\/figure>\n\n\n\n

\u7b2c\u4e09\u5c42\u662fInnodb\u5b58\u50a8\u6570\u636e<\/p>\n\n\n\n

Innodb\u4e2d\u4e0d\u652f\u6301\u54c8\u5e0c\u7d22\u5f15<\/p>\n\n\n\n

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

index:\u7d22\u5f15 \u6570\u636e\u5e93\u7684\u7d22\u5f15\u662f\u6570\u636e\u5e93\u7ba1\u7406\u7cfb\u7edf\u91cc\u9762\u7ecf\u8fc7 \u6392\u5e8f\u7684\u6570\u636e\u7ed3\u6784 \u7d22\u5f15\u670d\u52a1\u5bf9\u8c61\u662fselect \u67e5\u8be2 \u66f4\u65b0 […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-1167","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/note.ui11.cc\/index.php\/wp-json\/wp\/v2\/posts\/1167","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/note.ui11.cc\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/note.ui11.cc\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/note.ui11.cc\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/note.ui11.cc\/index.php\/wp-json\/wp\/v2\/comments?post=1167"}],"version-history":[{"count":1,"href":"https:\/\/note.ui11.cc\/index.php\/wp-json\/wp\/v2\/posts\/1167\/revisions"}],"predecessor-version":[{"id":1179,"href":"https:\/\/note.ui11.cc\/index.php\/wp-json\/wp\/v2\/posts\/1167\/revisions\/1179"}],"wp:attachment":[{"href":"https:\/\/note.ui11.cc\/index.php\/wp-json\/wp\/v2\/media?parent=1167"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/note.ui11.cc\/index.php\/wp-json\/wp\/v2\/categories?post=1167"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/note.ui11.cc\/index.php\/wp-json\/wp\/v2\/tags?post=1167"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}