{"id":5076,"date":"2024-08-01T22:48:11","date_gmt":"2024-08-01T14:48:11","guid":{"rendered":"https:\/\/xinchewhd.com.cn\/?p=5076"},"modified":"2024-08-02T15:47:01","modified_gmt":"2024-08-02T07:47:01","slug":"%e9%9d%a2%e8%af%95%e5%ae%98%ef%bc%9a%e7%b4%a2%e5%bc%95%e9%83%bd%e6%9c%89%e5%93%aa%e4%ba%9b%e7%b1%bb%e5%9e%8b%ef%bc%9f%e4%bb%80%e4%b9%88%e6%98%af%e8%81%9a%e7%b0%87%e7%b4%a2%e5%bc%95%e3%80%81%e4%ba%8c","status":"publish","type":"post","link":"https:\/\/xinchewhd.com.cn\/index.php\/mysql\/%e9%9d%a2%e8%af%95%e5%ae%98%ef%bc%9a%e7%b4%a2%e5%bc%95%e9%83%bd%e6%9c%89%e5%93%aa%e4%ba%9b%e7%b1%bb%e5%9e%8b%ef%bc%9f%e4%bb%80%e4%b9%88%e6%98%af%e8%81%9a%e7%b0%87%e7%b4%a2%e5%bc%95%e3%80%81%e4%ba%8c\/","title":{"rendered":"\u9762\u8bd5\u5b98\uff1a\u7d22\u5f15\u90fd\u6709\u54ea\u4e9b\u7c7b\u578b\uff1f\u4ec0\u4e48\u662f\u805a\u7c07\u7d22\u5f15\u3001\u4e8c\u7ea7\u7d22\u5f15\uff1f\u8986\u76d6\u7d22\u5f15\u53c8\u662f\u600e\u4e48\u56de\u4e8b\u5462\uff1f"},"content":{"rendered":"
\n

\u4e0a\u7bc7\u6587\u7ae0<\/span>\u9762\u8bd5\u5b98\uff1a\u7d22\u5f15\u4e00\u822c\u662f\u5982\u4f55\u5b9e\u73b0\u7684\uff1fMySQL InnoDB\u5f15\u64ce\u7684\u7d22\u5f15\u91c7\u7528\u7684\u662f\u54ea\u79cd\u6570\u636e\u7ed3\u6784\uff1f\u539f\u56e0\u662f\u4ec0\u4e48\u5462\uff1f<\/span><\/a>\u4e2d\uff0c\u6211\u4eec\u63a2\u8ba8\u4e86\u7d22\u5f15\u7684\u5b9e\u73b0\u65b9\u6cd5\uff0c\u4ecb\u7ecd\u4e86MySQL InnoDB\u5f15\u64ce\u4e0b\u7d22\u5f15\u7684B+\u6811\u6570\u636e\u7ed3\u6784\u3002\u9762\u8bd5\u4e2d\uff0c\u7d22\u5f15\u7684\u53ef\u8003\u5bdf\u70b9\u8fd8\u6709\u5f88\u591a\uff0c\u6bd4\u5982\u7d22\u5f15\u7684\u7c7b\u578b\u3001\u4ec0\u4e48\u662f\u805a\u7c07\u7d22\u5f15\u3001\u4ec0\u4e48\u662f\u8986\u76d6\u7d22\u5f15\u3001\u7d22\u5f15\u5931\u6548\u3001\u7d22\u5f15\u4e0b\u63a8\u7b49\u7b49\uff0c\u4eca\u5929\u5c31\u7ee7\u7eed\u804a\u4e0b\u7d22\u5f15\u7c7b\u578b\u76f8\u5173\u7684\u9762\u8bd5\u9898\u76ee\u3002<\/span><\/p>\n

\n

\u9762\u8bd5\u5b98\uff1a\u7d22\u5f15\u90fd\u6709\u54ea\u4e9b\u7c7b\u578b\uff1f<\/span><\/p>\n

\n

\n

1\u3001\u6309\u7167\u6570\u636e\u7684\u5b58\u50a8\u4f4d\u7f6e\u5206\u7c7b<\/span><\/p>\n

\n

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\n

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\n

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\n

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\n

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\n

\n

2\u3001\u6309\u7167\u7d22\u5f15\u5b57\u6bb5\u7684\u7279\u6027\u5206\u7c7b<\/span><\/p>\n

\n

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\n

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\n

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\n
CREATE TABLE table_name  (<\/span><\/code>  ....<\/span><\/code>  PRIMARY KEY (index_column_1)<\/span><\/code><\/code>);<\/span><\/code><\/pre>\n<\/section>\n
<\/code><\/p>\n
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\n
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\n
\n
CREATE TABLE table_name  (<\/span><\/code>  ....<\/span><\/code>INDEX(idx_column_1,idx_column_2,...) <\/span><\/code><\/code>);<\/span><\/code><\/pre>\n<\/section>\n
<\/code><\/p>\n
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\n
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\n
\n
CREATE TABLE table_name  (<\/span><\/code>  ....<\/span><\/code>UNIQUE KEY(idx_column_1,idx_column_2,...) <\/span><\/code><\/code>);<\/span><\/code><\/pre>\n<\/section>\n
<\/code><\/p>\n
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\n
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\n
\n
CREATE TABLE table_name(<\/span><\/code>    ...<\/span><\/code>INDEX(column_name(length))<\/span><\/code><\/code>); <\/span><\/code><\/code><\/pre>\n<\/section>\n
<\/code><\/p>\n
\uff085\uff09\u5168\u6587\u7d22\u5f15<\/span><\/span><\/p>\n
\n
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\n
\n
CREATEFULLTEXTINDEX`idx_column_1`ontable_name(column_1);<\/span><\/code><\/pre>\n<\/section>\n
<\/pre>\n
\n
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\n
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1\u3001\u51cf\u5c11\u4e86\u67e5\u8be2\u64cd\u4f5c\u7684 I\/O \u6210\u672c\uff0c\u663e\u8457\u63d0\u9ad8\u67e5\u8be2\u6548\u7387\u3002<\/span><\/p>\n
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\n
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3\u3001\u7d22\u5f15\u7ef4\u62a4\u6210\u672c\u589e\u52a0<\/span>\uff1a\u968f\u7740\u7d22\u5f15\u6570\u91cf\u7684\u589e\u52a0\uff0c\u7d22\u5f15\u7684\u7ef4\u62a4\u6210\u672c\u4e5f\u4f1a\u589e\u52a0\uff0c\u5305\u62ec\u4f18\u5316\u3001\u91cd\u5efa\u7d22\u5f15\u7b49\u64cd\u4f5c\u3002<\/span><\/p>\n
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\u70b9\u51fb\u5173\u6ce8\u6211\uff0c\u4ea4\u4e2a\u670b\u53cb\u5427\uff01<\/span><\/section>\n
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