{"id":888,"date":"2025-03-22T14:14:51","date_gmt":"2025-03-22T06:14:51","guid":{"rendered":"https:\/\/eve2333.top\/?p=888"},"modified":"2025-03-22T14:14:51","modified_gmt":"2025-03-22T06:14:51","slug":"mysql%e6%95%b0%e6%8d%ae%e5%ba%93%e5%85%a5%e9%97%a8%e5%88%b0%e5%a4%a7%e8%9b%87%e5%b0%9a%e7%a1%85%e8%b0%b7%e5%ae%8b%e7%ba%a2%e5%ba%b7%e8%80%81%e5%b8%88%e7%ac%94%e8%ae%b0-%e9%ab%98%e7%ba%a7%e7%af%87-pa-2","status":"publish","type":"post","link":"https:\/\/eve2333.top\/?p=888","title":{"rendered":"MySQL\u6570\u636e\u5e93\u5165\u95e8\u5230\u5927\u86c7\u5c1a\u7845\u8c37\u5b8b\u7ea2\u5eb7\u8001\u5e08\u7b14\u8bb0 \u9ad8\u7ea7\u7bc7 part 2"},"content":{"rendered":"\n

 \u7b2c02\u7ae0_MySQL\u7684\u6570\u636e\u76ee\u5f55<\/h1>\n\n\n\n

1. MySQL8\u7684\u4e3b\u8981\u76ee\u5f55\u7ed3\u6784<\/h2>\n\n\n\n

 1.1 \u6570\u636e\u5e93\u6587\u4ef6\u7684\u5b58\u653e\u8def\u5f84<\/h3>\n\n\n\n

MySQL\u6570\u636e\u5e93\u6587\u4ef6\u7684\u5b58\u653e\u8def\u5f84\uff1a\/var\/lib\/mysql\/<\/p>\n\n\n\n

MySQL\u670d\u52a1\u5668\u7a0b\u5e8f\u5728\u542f\u52a8\u65f6\u4f1a\u5230\u6587\u4ef6\u7cfb\u7edf\u7684\u67d0\u4e2a\u76ee\u5f55\u4e0b\u52a0\u8f7d\u4e00\u4e9b\u6587\u4ef6\uff0c\u4e4b\u540e\u5728\u8fd0\u884c\u8fc7\u7a0b\u4e2d\u4ea7\u751f\u7684\u6570\u636e\u4e5f\u90fd\u4f1a\u5b58\u50a8\u5230\u8fd9\u4e2a\u76ee\u5f55\u4e0b\u7684\u67d0\u4e9b\u6587\u4ef6\u4e2d\uff0c\u8fd9\u4e2a\u76ee\u5f55\u5c31\u79f0\u4e3a\u6570\u636e\u76ee\u5f55\u3002
MySQL\u628a\u6570\u636e\u90fd\u5b58\u5230\u54ea\u4e2a\u8def\u5f84\u4e0b\u5462\uff1f\u5176\u5b9e\u6570\u636e\u76ee\u5f55\u5bf9\u5e94\u7740\u4e00\u4e2a\u7cfb\u7edf\u53d8\u91cfdatadir\uff0c\u6211\u4eec\u5728\u4f7f\u7528\u5ba2\u6237\u7aef\u4e0e\u670d\u52a1\u5668\u5efa\u7acb\u8fde\u63a5\u4e4b\u540e\u67e5\u770b\u8fd9\u4e2a\u7cfb\u7edf\u53d8\u91cf\u7684\u503c\u5c31\u53ef\u4ee5\u4e86\uff1a<\/p>\n\n\n\n

show variables like 'datadir';<\/code><\/pre>\n\n\n\n
\u4ece\u7ed3\u679c\u4e2d\u53ef\u4ee5\u770b\u51fa\uff0c\u5728\u6211\u7684\u8ba1\u7b97\u673a\u4e0aMysQL\u7684\u6570\u636e\u76ee\u5f55\u5c31\u662f\/var\/lib\/mysql\/\u3002<\/p>\n\n\n\n
1.2\u76f8\u5173\u547d\u4ee4\u76ee\u5f55<\/h3>\n\n\n\n
\u76f8\u5173\u547d\u4ee4\u76ee\u5f55\uff1a\/usr\/bin\uff08mysqladmin\u3001mysqlbinlog\u3001mysqldump\u7b49\u547d\u4ee4\uff09\u548c\/usr\/sbin\u3002 <\/p>\n\n\n\n
\u6bd4\u5982\u4f60 cd \/usr\/sbin\uff0c\u7528ls\u770b\u4e00\u4e0b\uff0c\u540c\u6837\u975e\u5e38\u591a\u3002<\/p>\n\n\n\n
1.3 \u914d\u7f6e\u6587\u4ef6\u76ee\u5f55<\/h3>\n\n\n\n
\u914d\u7f6e\u6587\u4ef6\u76ee\u5f55\uff1a \/usr\/share\/mysql-8.0\uff08\u547d\u4ee4\u53ca\u914d\u7f6e\u6587\u4ef6\uff09\uff0c\/etc\/mysql\uff08\u5982my.cnf)<\/p>\n\n\n\n
 2.\u6570\u636e\u5e93\u548c\u6587\u4ef6\u7cfb\u7edf\u7684\u5173\u7cfb<\/h2>\n\n\n\n
\u50cfInnoDB\u3001MyISAM\u8fd9\u6837\u7684\u5b58\u50a8\u5f15\u64ce\u90fd\u662f\u628a\u8868\u5b58\u50a8\u5728\u78c1\u76d8\u4e0a\u7684\uff0c\u64cd\u4f5c\u7cfb\u7edf\u7528\u6765\u7ba1\u7406\u78c1\u76d8\u7684\u7ed3\u6784\u88ab\u79f0\u4e3a\u6587\u4ef6\u7cfb\u7edf\uff0c\u6240\u4ee5\u7528\u4e13\u4e1a\u4e00\u70b9\u7684\u8bdd\u6765\u8868\u8ff0\u5c31\u662f\uff1a\u50cfInnoDB\u3001MyISAM\u8fd9\u6837\u7684\u5b58\u50a8\u5f15\u64ce\u90fd\u662f\u628a\u8868\u5b58\u50a8\u5728\u6587\u4ef6\u7cfb\u7edf\u4e0a\u7684\u3002\u5f53\u6211\u4eec\u60f3\u8bfb\u53d6\u6570\u636e\u7684\u65f6\u5019\uff0c\u8fd9\u4e9b\u5b58\u50a8\u5f15\u64ce\u4f1a\u4ece\u6587\u4ef6\u7cfb\u7edf\u4e2d\u628a\u6570\u636e\u8bfb\u51fa\u6765\u8fd4\u56de\u7ed9\u6211\u4eec\uff0c\u5f53\u6211\u4eec\u60f3\u5199\u5165\u6570\u636e\u7684\u65f6\u5019\uff0c\u8fd9\u4e9b\u5b58\u50a8\u5f15\u64ce\u4f1a\u628a\u8fd9\u4e9b\u6570\u636e\u53c8\u5199\u56de\u6587\u4ef6\u7cfb\u7edf\u3002\u672c\u7ae0\u5b66\u4e60\u4e00\u4e0bInnoDB\u548cMyISAM\u8fd9\u4e24\u4e2a\u5b58\u50a8\u5f15\u64ce\u7684\u6570\u636e\u5982\u4f55\u5728\u6587\u4ef6\u7cfb\u7edf\u4e2d\u5b58\u50a8\u3002<\/p>\n\n\n\n
\u67e5\u770b\u4e00\u4e0b\u5728\u6211\u7684\u8ba1\u7b97\u673a\u4e0a\u5f53\u524d\u6709\u54ea\u4e9b\u6570\u636e\u5e93\uff1a
mysql> SHOW DATABASES;
\u53ef\u4ee5\u770b\u5230\u67094\u4e2a\u6570\u636e\u5e93\u662f\u5c5e\u4e8eMySQL\u81ea\u5e26\u7684\u7cfb\u7edf\u6570\u636e\u5e93\u3002<\/p>\n\n\n\n
    \n
  • mysql
    MySQL\u7cfb\u7edf\u81ea\u5e26\u7684\u6838\u5fc3\u6570\u636e\u5e93\uff0c\u5b83\u5b58\u50a8\u4e86MySQL\u7684\u7528\u6237\u8d26\u6237\u548c\u6743\u9650\u4fe1\u606f\uff0c\u4e00\u4e9b\u5b58\u50a8\u8fc7\u7a0b\u3001\u4e8b\u4ef6\u7684\u5b9a\u4e49\u4fe1\u606f\uff0c\u4e00\u4e9b\u8fd0\u884c\u8fc7\u7a0b\u4e2d\u4ea7\u751f\u7684\u65e5\u5fd7\u4fe1\u606f\uff0c\u4e00\u4e9b\u5e2e\u52a9\u4fe1\u606f\u4ee5\u53ca\u65f6\u533a\u4fe1\u606f\u7b49\u3002<\/li>\n\n\n\n
  • information_schema
    MySQL\u7cfb\u7edf\u81ea\u5e26\u7684\u6570\u636e\u5e93\uff0c\u8fd9\u4e2a\u6570\u636e\u5e93\u4fdd\u5b58\u7740MySQL\u670d\u52a1\u5668\u7ef4\u62a4\u7684\u6240\u6709\u5176\u4ed6\u6570\u636e\u5e93\u7684\u4fe1\u606f\uff0c\u6bd4\u5982\u6709\u54ea\u4e9b\u8868\u3001\u54ea\u4e9b\u89c6\u56fe\u3001\u54ea\u4e9b\u89e6\u53d1\u5668\u3001\u54ea\u4e9b\u5217\u3001\u54ea\u4e9b\u7d22\u5f15\u3002\u8fd9\u4e9b\u4fe1\u606f\u5e76\u4e0d\u662f\u771f\u5b9e\u7684\u7528\u6237\u6570\u636e\uff0c\u800c\u662f\u4e00\u4e9b\u63cf\u8ff0\u6027\u4fe1\u606f\uff0c\u6709\u65f6\u5019\u4e5f\u79f0\u4e4b\u4e3a\u5143\u6570\u636e\u3002\u5728\u7cfb\u7edf\u6570\u636e\u5e93information_schema\u4e2d\u63d0\u4f9b\u4e86\u4e00\u4e9b\u4ee5innodb_sys\u5f00\u5934\u7684\u8868\uff0c\u7528\u4e8e\u8868\u793a\u5185\u90e8\u7cfb\u7edf\u8868\u3002<\/li>\n\n\n\n
  • performance_schema
    MySQL\u7cfb\u7edf\u81ea\u5e26\u7684\u6570\u636e\u5e93\uff0c\u8fd9\u4e2a\u6570\u636e\u5e93\u91cc\u4e3b\u8981\u4fdd\u5b58MySQ\u670d\u52a1\u5668\u8fd0\u884c\u8fc7\u7a0b\u4e2d\u7684\u4e00\u4e9b\u72b6\u6001\u4fe1\u606f\uff0c\u53ef\u4ee5\u7528\u6765\u76d1\u63a7MySQL\u670d\u52a1\u7684\u5404\u7c7b\u6027\u80fd\u6307\u6807\u3002\u5305\u62ec\u7edf\u8ba1\u6700\u8fd1\u6267\u884c\u4e86\u54ea\u4e9b\u8bed\u53e5\uff0c\u5728\u6267\u884c\u8fc7\u7a0b\u7684\u6bcf\u4e2a\u9636\u6bb5\u90fd\u82b1\u8d39\u4e86\u591a\u957f\u65f6\u95f4\uff0c\u5185\u5b58\u7684\u4f7f\u7528\u60c5\u51b5\u7b49\u4fe1\u606f\u3002<\/li>\n\n\n\n
  • sys
    MySQL\u7cfb\u7edf\u81ea\u5e26\u7684\u6570\u636e\u5e93\uff0c\u8fd9\u4e2a\u6570\u636e\u5e93\u4e3b\u8981\u662f\u901a\u8fc7\u89c6\u56fe\u7684\u5f62\u5f0f\u628ainformation_schema\u548c
    performance_schema\u7ed3\u5408\u8d77\u6765\uff0c\u5e2e\u52a9\u7cfb\u7edf\u7ba1\u7406\u5458\u548c\u5f00\u53d1\u4eba\u5458\u76d1\u63a7MysQL\u7684\u6280\u672f\u6027\u80fd\u3002<\/li>\n<\/ul>\n\n\n\n
     Innodb\u5206\u4e3a5.7\u548c8.0\u4e24\u4e2a\u7248\u672c\uff0cMyISAM\u5355\u4e2a\u5c31\u597d<\/p>\n\n\n\n
     \u6211\u4eeccd .\/debest1   \u5728\u4e00\u4e2a\u8868\u4e2d\uff0cll \u540e\u53d1\u73b0\u6709\u4e24\u4e2a\u6587\u4ef6emp1\u548cemp2\uff0c\u6253\u5f00\u6587\u4ef6\u5bf9\u5e94\u7684\u662f\u4e94\u4e2a\uff0c\u5206\u522b\u662fdb.opt\uff0cemp1.frm\uff0cemp1.ibd\uff0cemp2.frm\uff0cemp2.ibd
    .frm\u5b58\u50a8\u8868\u7ed3\u6784 .ibd\u5b58\u50a8\u8868\u6570\u636e<\/p>\n\n\n\n
    \"\"<\/p>\n\n\n\n
     \u6253\u5f008.0\uff0c\u76f8\u540c\u7684\u64cd\u4f5c\uff0c\u4f46\u662f\u662f\u53ea\u67092\u4e2a\u6587\u4ef6\uff0cemp1.ibd\u548cmytbl2.ibd <\/p>\n\n\n\n
    \n\n\n\n
    \u5176\u4e2d\u4e2d\u62ec\u53f7\u6269\u8d77\u6765\u7684 = \u53ef\u6709\u53ef\u65e0\uff0c\u6bd4\u5982\uff1a\u6211\u4eec\u60f3\u628a test \u8868\u4ece\u72ec\u7acb\u8868\u7a7a\u95f4\u79fb\u52a8\u5230\u7cfb\u7edf\u8868\u7a7a\u95f4\uff0c\u53ef\u4ee5\u8fd9\u4e48\u5199\uff1a<\/p>\n\n\n\n
    ALTER TABLE test TABLESPACE innodb_system;<\/p>\n\n\n\n
    \u2463 \u5176\u4ed6\u7c7b\u578b\u7684\u8868\u7a7a\u95f4<\/p>\n\n\n\n
    \u968f\u7740MySQL\u7684\u53d1\u5c55\uff0c\u9664\u4e86\u4e0a\u8ff0\u4e24\u79cd\u8001\u724c\u8868\u7a7a\u95f4\u4e4b\u5916\uff0c\u73b0\u5728\u8fd8\u65b0\u63d0\u51fa\u4e86\u4e00\u4e9b\u4e0d\u540c\u7c7b\u578b\u7684\u8868\u7a7a\u95f4\uff0c\u6bd4\u5982\u901a\u7528\u8868\u7a7a\u95f4\uff08general tablespace\uff09\u3001\u4e34\u65f6\u8868\u7a7a\u95f4\uff08temporary tablespace\uff09\u7b49\u3002<\/p>\n\n\n\n
    3. \u7591\u95ee
    .frm\u5728MySQL8\u4e2d\u4e0d\u5b58\u5728\u4e86\u3002\u90a3\u53bb\u54ea\u91cc\u4e86\u5462\uff1f<\/p>\n\n\n\n
    \u8fd9\u5c31\u9700\u8981\u89e3\u6790ibd\u6587\u4ef6\u3002Oracle \u5b98\u65b9\u5c06frm\u6587\u4ef6\u7684\u4fe1\u606f\u53ca\u66f4\u591a\u4fe1\u606f\u79fb\u52a8\u5230\u53eb\u505a\u5e8f\u5217\u5316\u5b57\u5178\u4fe1\u606f\uff08Serialized Dictionary Information\uff0cSDI\uff09\uff0cSDI\u88ab\u5199\u5728ibd\u6587\u4ef6\u5185\u90e8\u3002MySQL 8.0\u5c5e\u4e8eOracle\u65d7\u4e0b\uff0c\u540c\u7406\u3002<\/p>\n\n\n\n
    \u4e3a\u4e86\u4eceIBD\u6587\u4ef6\u4e2d\u63d0\u53d6SDI\u4fe1\u606f\uff0cOracle\u63d0\u4f9b\u4e86\u4e00\u4e2a\u5e94\u7528\u7a0b\u5e8f ibd2sdi\u3002
    === ibd2sdi \u5b98\u65b9\u6587\u6863 ===
    \u8fd9\u4e2a\u5de5\u5177\u4e0d\u9700\u8981\u4e0b\u8f7d\uff0cMySQL8\u81ea\u5e26\u7684\u6709\uff0c\u53ea\u8981\u4f60\u914d\u597d\u73af\u5883\u53d8\u91cf\u5c31\u80fd\u5230\u5904\u7528\u3002<\/p>\n\n\n\n
    \uff081\uff09\u67e5\u770b\u8868\u7ed3\u6784
    \u5230\u5b58\u50a8ibd\u6587\u4ef6\u7684\u76ee\u5f55\u4e0b\uff0c\u6267\u884c\u4e0b\u9762\u7684\u547d\u4ee4\uff1a
    ibd2sdi --dump-file=student.txt student.ibd<\/p>\n\n\n\n
    \u7ed3\u679c\u5982\u56fe\u6240\u793a
    [root@bgon atguigu]# ibd2sdi --dump-file=student.txt student.ibd
    [root@bgon atguigu]# ls
    a.ibd student.ibd student.txt test_frm.ibd<\/p>\n\n\n\n
    \n\n\n\n
    2.3.1 InnoDB\u5b58\u50a8\u5f15\u64ce\u6a21\u5f0f<\/h3>\n\n\n\n
    1. \u8868\u7ed3\u6784<\/h4>\n\n\n\n
    \u4e3a\u4e86\u4fdd\u5b58\u8868\u7ed3\u6784\uff0cInnoDB\u5728\u6570\u636e\u76ee\u5f55\u4e0b\u5bf9\u5e94\u7684\u6570\u636e\u5e93\u5b50\u76ee\u5f55\u4e0b\u521b\u5efa\u4e86\u4e00\u4e2a\u4e13\u95e8\u7528\u4e8e\u63cf\u8ff0\u8868\u7ed3\u6784\u7684\u6587\u4ef6\uff0c\u6587\u4ef6\u540d\u662f\u8fd9\u6837\uff1a<\/p>\n\n\n\n
    \u8868\u540d.frm<\/code><\/p>\n\n\n\n
    \u6bd4\u65b9\u8bf4\u6211\u4eec\u5728 atguigu \u6570\u636e\u5e93\u4e0b\u521b\u5efa\u4e00\u4e2a\u540d\u4e3a test \u7684\u8868\uff1a<\/p>\n\n\n\n
    mysql> USE atguigu;\nDatabase changed\n\nmysql> CREATE TABLE test (\n    c1 INT\n);\nQuery OK, 0 rows affected (0.03 sec)<\/code><\/pre>\n\n\n\n
    \u90a3\u5728\u6570\u636e\u5e93 atguigu \u5bf9\u5e94\u7684\u5b50\u76ee\u5f55\u4e0b\u5c31\u4f1a\u521b\u5efa\u4e00\u4e2a\u540d\u4e3a test.frm \u7684\u7528\u4e8e\u63cf\u8ff0\u8868\u7ed3\u6784\u7684\u6587\u4ef6\u3002.frm\u6587\u4ef6\u7684\u683c\u5f0f\u5728\u4e0d\u540c\u7684\u5e73\u53f0\u4e0a\u90fd\u662f\u76f8\u540c\u7684\u3002\u8fd9\u4e2a\u540e\u7f00\u540d\u4e3a.frm\u662f\u4ee5\u4e8c\u8fdb\u5236\u683c\u5f0f\u5b58\u50a8\u7684\uff0c\u6211\u4eec\u76f4\u63a5\u6253\u5f00\u662f\u4e71\u7801\u7684\u3002<\/p>\n\n\n\n
    2. \u8868\u4e2d\u6570\u636e\u548c\u7d22\u5f15<\/h4>\n\n\n\n
    \u7cfb\u7edf\u8868\u7a7a\u95f4\uff08system tablespace\uff09<\/h5>\n\n\n\n
    \u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0cInnoDB\u4f1a\u5728\u6570\u636e\u76ee\u5f55\u4e0b\u521b\u5efa\u4e00\u4e2a\u540d\u4e3a ibdata1\u3001\u5927\u5c0f\u4e3a 12M \u7684\u6587\u4ef6\uff0c\u8fd9\u4e2a\u6587\u4ef6\u5c31\u662f\u5bf9\u5e94\u7684\u7cfb\u7edf\u8868\u7a7a\u95f4\u5728\u6587\u4ef6\u7cfb\u7edf\u4e0a\u7684\u8868\u793a\u3002\u600e\u4e48\u624d12M\uff1f\u6ce8\u610f\u8fd9\u4e2a\u6587\u4ef6\u662f\u81ea\u6269\u5c55\u6587\u4ef6\uff0c\u5f53\u4e0d\u591f\u7528\u7684\u65f6\u5019\u5b83\u4f1a\u81ea\u5df1\u589e\u52a0\u6587\u4ef6\u5927\u5c0f\u3002<\/p>\n\n\n\n
    \u5f53\u7136\uff0c\u5982\u679c\u4f60\u60f3\u8ba9\u7cfb\u7edf\u8868\u7a7a\u95f4\u5bf9\u5e94\u6587\u4ef6\u7cfb\u7edf\u4e0a\u591a\u4e2a\u5b9e\u9645\u6587\u4ef6\uff0c\u6216\u8005\u4ec5\u4ec5\u89c9\u5f97\u539f\u6765\u7684 ibdata1 \u8fd9\u4e2a\u6587\u4ef6\u540d\u96be\u542c\uff0c\u90a3\u53ef\u4ee5\u5728MySQL\u542f\u52a8\u65f6\u914d\u7f6e\u5bf9\u5e94\u7684\u6587\u4ef6\u8def\u5f84\u4ee5\u53ca\u5b83\u4eec\u7684\u5927\u5c0f\uff0c\u6bd4\u5982\u6211\u4eec\u8fd9\u6837\u4fee\u6539\u4e00\u4e0bmy.cnf \u914d\u7f6e\u6587\u4ef6\uff1a<\/p>\n\n\n\n
    [server]\ninnodb_data_file_path=data1:512M;data2:512M:autoextend<\/code><\/pre>\n\n\n\n
    \u72ec\u7acb\u8868\u7a7a\u95f4\uff08file-per-table tablespace\uff09<\/h4>\n\n\n\n
    \u5728MySQL5.6\u4ee5\u53ca\u4e4b\u540e\u7684\u7248\u672c\u4e2d\uff0cInnoDB\u5e76\u4e0d\u4f1a\u9ed8\u8ba4\u7684\u628a\u5404\u4e2a\u8868\u7684\u6570\u636e\u5b58\u50a8\u5230\u7cfb\u7edf\u8868\u7a7a\u95f4\u4e2d\uff0c\u800c\u662f\u4e3a\u6bcf\u4e2a\u8868\u5efa\u7acb\u4e00\u4e2a\u72ec\u7acb\u8868\u7a7a\u95f4\uff0c\u4e5f\u5c31\u662f\u8bf4\u6211\u4eec\u521b\u5efa\u4e86\u591a\u5c11\u4e2a\u8868\uff0c\u5c31\u6709\u591a\u5c11\u4e2a\u72ec\u7acb\u8868\u7a7a\u95f4\u3002\u4f7f\u7528\u72ec\u7acb\u8868\u7a7a\u95f4\u6765\u5b58\u50a8\u8868\u6570\u636e\u7684\u8bdd\uff0c\u4f1a\u5728\u8be5\u8868\u6240\u5c5e\u6570\u636e\u5e93\u5bf9\u5e94\u7684\u5b50\u76ee\u5f55\u4e0b\u521b\u5efa\u4e00\u4e2a\u8868\u793a\u8be5\u72ec\u7acb\u8868\u7a7a\u95f4\u7684\u6587\u4ef6\uff0c\u6587\u4ef6\u540d\u548c\u8868\u540d\u76f8\u540c\uff0c\u53ea\u4e0d\u8fc7\u6dfb\u52a0\u4e86\u4e00\u4e2a.ibd\u7684\u6269\u5c55\u540d\u800c\u5df2\uff0c\u6240\u4ee5\u5b8c\u6574\u7684\u6587\u4ef6\u540d\u79f0\u957f\u8fd9\u6837\uff1a<\/p>\n\n\n\n
    \u8868\u540d.ibd<\/code><\/p>\n\n\n\n
    \u6bd4\u5982\uff1a\u6211\u4eec\u4f7f\u7528\u4e86\u72ec\u7acb\u8868\u7a7a\u95f4\u53bb\u5b58\u50a8 atguigu \u6570\u636e\u5e93\u4e0b\u7684 test \u8868\u7684\u8bdd\uff0c\u90a3\u4e48\u5728\u8be5\u8868\u6240\u5728\u6570\u636e\u5e93\u5bf9\u5e94\u7684 atguigu \u76ee\u5f55\u4e0b\u4f1a\u4e3a test \u8868\u521b\u5efa\u8fd9\u4e24\u4e2a\u6587\u4ef6\uff1a<\/p>\n\n\n\n
    test.frm\ntest.ibd<\/code><\/pre>\n\n\n\n
    \u5176\u4e2d test.ibd \u6587\u4ef6\u5c31\u7528\u6765\u5b58\u50a8 test \u8868\u4e2d\u7684\u6570\u636e\u548c\u7d22\u5f15\u3002<\/p>\n\n\n\n
    \u7cfb\u7edf\u8868\u7a7a\u95f4\u4e0e\u72ec\u7acb\u8868\u7a7a\u95f4\u7684\u8bbe\u7f6e<\/h4>\n\n\n\n
    \u6211\u4eec\u53ef\u4ee5\u81ea\u5df1\u6307\u5b9a\u4f7f\u7528\u7cfb\u7edf\u8868\u7a7a\u95f4\u8fd8\u662f\u72ec\u7acb\u8868\u7a7a\u95f4\u6765\u5b58\u50a8\u6570\u636e\uff0c\u8fd9\u4e2a\u529f\u80fd\u7531\u542f\u52a8\u53c2\u6570 innodb_file_per_table \u63a7\u5236\uff0c\u6bd4\u5982\u8bf4\u6211\u4eec\u60f3\u523b\u610f\u5c06\u8868\u6570\u636e\u90fd\u5b58\u50a8\u5230\u7cfb\u7edf\u8868\u7a7a\u95f4\u65f6\uff0c\u53ef\u4ee5\u5728\u542f\u52a8 MySQL \u670d\u52a1\u5668\u7684\u65f6\u5019\u8fd9\u6837\u914d\u7f6e\uff1a<\/p>\n\n\n\n
    [server]\ninnodb_file_per_table=0 # 0: \u4ee3\u8868\u4f7f\u7528\u7cfb\u7edf\u8868\u7a7a\u95f4; 1: \u4ee3\u8868\u4f7f\u7528\u72ec\u7acb\u8868\u7a7a\u95f4<\/code><\/pre>\n\n\n\n
    \u9ed8\u8ba4\u60c5\u51b5\uff1a<\/p>\n\n\n\n
    mysql> show variables like 'innodb_file_per_table';\n+----------------+-------+\n| Variable_name | Value |\n+----------------+-------+\n| innodb_file_per_table | ON |\n+----------------+-------+\n1 row in set (0.01 sec)<\/code><\/pre>\n\n\n\n
    \u5176\u4ed6\u7c7b\u578b\u7684\u8868\u7a7a\u95f4<\/h4>\n\n\n\n
    \u968f\u7740MySQL\u7684\u53d1\u5c55\uff0c\u9664\u4e86\u4e0a\u8ff0\u4e24\u79cd\u8001\u724c\u8868\u7a7a\u95f4\u4e4b\u5916\uff0c\u73b0\u5728\u8fd8\u65b0\u63d0\u51fa\u4e86\u4e00\u4e9b\u4e0d\u540c\u7c7b\u578b\u7684\u8868\u7a7a\u95f4\uff0c\u6bd4\u5982\u901a\u7528\u8868\u7a7a\u95f4\uff08general tablespace\uff09\u3001\u4e34\u65f6\u8868\u7a7a\u95f4\uff08temporary tablespace\uff09\u7b49\u3002<\/p>\n\n\n\n
     2.3.2 MyISAM\u5b58\u50a8\u5f15\u64ce\u6a21\u5f0f<\/h3>\n\n\n\n
     \u5728\u5b58\u50a8\u8868\u7ed3\u6784\u65b9\u9762\uff0c MyISAM \u548c InnoDB \u4e00\u6837\uff0c\u4e5f\u662f\u5728 \u6570\u636e\u76ee\u5f55\u4e0b\u5bf9\u5e94\u7684\u6570\u636e\u5e93\u5b50\u76ee\u5f55\u4e0b\u521b\u5efa\u4e86\u4e00\u4e2a\u4e13\u95e8\u7528\u4e8e\u63cf\u8ff0\u8868\u7ed3\u6784\u7684\u6587\u4ef6\uff1a \u8868\u540d.frm<\/p>\n\n\n\n
    \u5728MyISAM\u4e2d\u7684\u7d22\u5f15\u5168\u90e8\u90fd\u662f \u4e8c\u7ea7\u7d22\u5f15\uff0c\u8be5\u5b58\u50a8\u5f15\u64ce\u7684 \u6570\u636e\u548c\u7d22\u5f15\u662f\u5206\u5f00\u5b58\u653e\u7684\u3002\u6240\u4ee5\u5728\u6587\u4ef6\u7cfb\u7edf\u4e2d\u4e5f\u662f \u4f7f\u7528\u4e0d\u540c\u7684\u6587\u4ef6\u6765\u5b58\u50a8\u6570\u636e\u6587\u4ef6\u548c\u7d22\u5f15\u6587\u4ef6\uff0c\u540c\u65f6\u8868\u6570\u636e\u90fd\u5b58\u653e\u5728\u5bf9\u5e94\u7684\u6570\u636e\u5e93\u5b50\u76ee\u5f55\u4e0b\u3002\u5047\u5982 \u8868\u4f7f\u7528MyISAM\u5b58\u50a8\u5f15\u64ce\u7684\u8bdd\uff0c\u90a3\u4e48\u5728\u5b83\u6240\u5728\u6570\u636e\u5e93\u5bf9\u5e94\u7684 atguigu \u76ee\u5f55\u4e0b\u4f1a\u4e3a test test \u8868\u521b\u5efa\u8fd9\u4e09\u4e2a\u6587\u4ef6\uff1a<\/p>\n\n\n\n
    test.frm   \u5b58\u50a8\u8868\u7ed3\u6784
    test.MYD   \u5b58\u50a8\u6570\u636e (MYData)
    test.MYI   \u5b58\u50a8\u7d22\u5f15 (MYIndex)<\/p>\n\n\n\n
     \u4e3e\u4f8b\uff1a\u521b\u5efa\u4e00\u4e2a MyISAM \u8868\uff0c\u4f7f\u7528 ENGINE \u9009\u9879\u663e\u5f0f\u6307\u5b9a\u5f15\u64ce\u3002\u56e0\u4e3aInnoDB\u662f\u9ed8\u8ba4\u5f15\u64ce\u3002<\/p>\n\n\n\n
    CREATE TABLE `student_myisam` (\n `id` bigint NOT NULL AUTO_INCREMENT,\n `name` varchar(64) DEFAULT NULL,\n `age` int DEFAULT NULL,\n `sex` varchar(2) DEFAULT NULL,\n PRIMARY KEY (`id`)\n )ENGINE=MYISAM AUTO_INCREMENT=0 DEFAULT CHARSET=utf8mb3;<\/code><\/pre>\n\n\n\n
    2.4 \u5c0f\u7ed3<\/h3>\n\n\n\n
    \u4e3e\u4f8b\uff1a\u6570\u636e\u5e93a\uff0c\u8868b\u3002
    1\u3001\u5982\u679c\u8868b\u91c7\u7528 InnoDB\uff0cdata\\a\u4e2d\u4f1a\u4ea7\u751f1\u4e2a\u6216\u80052\u4e2a\u6587\u4ef6\uff1a
    - b.frm\uff1a\u63cf\u8ff0\u8868\u7ed3\u6784\u6587\u4ef6\uff0c\u5b57\u6bb5\u957f\u5ea6\u7b49
    - \u5982\u679c\u91c7\u7528 \u7cfb\u7edf\u8868\u7a7a\u95f4 \u6a21\u5f0f\u7684\uff0c\u6570\u636e\u4fe1\u606f\u548c\u7d22\u5f15\u4fe1\u606f\u90fd\u5b58\u50a8\u5728 ibdata1 \u4e2d
    - \u5982\u679c\u91c7\u7528 \u72ec\u7acb\u8868\u7a7a\u95f4 \u5b58\u50a8\u6a21\u5f0f\uff0cdata\\a\u4e2d\u8fd8\u4f1a\u4ea7\u751f b.ibd \u6587\u4ef6\uff08\u5b58\u50a8\u6570\u636e\u4fe1\u606f\u548c\u7d22\u5f15\u4fe1\u606f\uff09<\/p>\n\n\n\n
    \u6b64\u5916\uff1a
    \u2460 MySQL5.7 \u4e2d\u4f1a\u5728 data\/a \u7684\u76ee\u5f55\u4e0b\u751f\u6210 db.opt \u6587\u4ef6\u7528\u4e8e\u4fdd\u5b58\u6570\u636e\u5e93\u7684\u76f8\u5173\u914d\u7f6e\u3002\u6bd4\u5982\uff1a\u5b57\u7b26\u96c6\u3001\u6bd4\u8f83\u89c4\u5219\u3002\u800c MySQL8.0 \u4e0d\u518d\u63d0\u4f9b db.opt \u6587\u4ef6\u3002
    \u2461 MySQL8.0 \u4e2d\u4e0d\u518d\u5355\u72ec\u63d0\u4f9b b.frm\uff0c\u800c\u662f\u5408\u5e76\u5728 b.ibd \u6587\u4ef6\u4e2d\u3002<\/p>\n\n\n\n
    2\u3001\u5982\u679c\u8868b\u91c7\u7528 MyISAM\uff0cdata\\a\u4e2d\u4f1a\u4ea7\u751f3\u4e2a\u6587\u4ef6\uff1a
    - MySQL5.7 \u4e2d\uff1ab.frm\uff1a\u63cf\u8ff0\u8868\u7ed3\u6784\u6587\u4ef6\uff0c\u5b57\u6bb5\u957f\u5ea6\u7b49\u3002
    - MySQL8.0 \u4e2d b.xxx.sdi\uff1a\u63cf\u8ff0\u8868\u7ed3\u6784\u6587\u4ef6\uff0c\u5b57\u6bb5\u957f\u5ea6\u7b49
    - b.MYD (MYData)\uff1a\u6570\u636e\u4fe1\u606f\u6587\u4ef6\uff0c\u5b58\u50a8\u6570\u636e\u4fe1\u606f(\u5982\u679c\u91c7\u7528\u72ec\u7acb\u8868\u5b58\u50a8\u6a21\u5f0f)
    - b.MYI (MYIndex)\uff1a\u5b58\u653e\u7d22\u5f15\u4fe1\u606f\u6587\u4ef6<\/p>\n\n\n\n
     2.5\u89c6\u56fe\u5728\u6587\u4ef6\u7cfb\u7edf\u4e2d\u7684\u8868\u793a<\/h3>\n\n\n\n
    \u6211\u4eec\u77e5\u9053MySQL\u4e2d\u7684\u89c6\u56fe\u5176\u5b9e\u662f\u865a\u62df\u7684\u8868\uff0c\u4e5f\u5c31\u662f\u67d0\u4e2a\u67e5\u8be2\u8bed\u53e5\u7684\u4e00\u4e2a\u522b\u540d\u800c\u5df2\uff0c\u6240\u4ee5\u5728\u5b58\u50a8\u89c6\u56fe\u7684\u65f6\u5019\u662f\u4e0d\u9700\u8981\u5b58\u50a8\u771f\u5b9e\u7684\u6570\u636e\u7684\uff0c\u53ea\u9700\u8981\u628a\u5b83\u7684\u7ed3\u6784\u5b58\u50a8\u8d77\u6765\u5c31\u884c\u4e86\u3002\u548c\u8868\u4e00\u6837\uff0c\u63cf\u8ff0\u89c6\u56fe\u7ed3\u6784\u7684\u6587\u4ef6\u4e5f\u4f1a\u88ab\u5b58\u50a8\u5230\u6240\u5c5e\u6570\u636e\u5e93\u5bf9\u5e94\u7684\u5b50\u76ee\u5f55\u4e0b\u8fb9\uff0c\u53ea\u4f1a\u5b58\u50a8\u4e00\u4e2a\u89c6\u56fe\u540d.frm\u7684\u6587\u4ef6\u3002\u5982\u4e0b\u56fe\u4e2d\u7684\uff1aemp_details_view.frm\"\"<\/p>\n","protected":false},"excerpt":{"rendered":"
     \u7b2c02\u7ae0_MySQL\u7684\u6570\u636e\u76ee\u5f55 1. MySQL8\u7684\u4e3b\u8981\u76ee\u5f55\u7ed3\u6784  1.1 \u6570\u636e\u5e93\u6587\u4ef6\u7684\u5b58\u653e\u8def\u5f84 MySQL …<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"emotion":"","emotion_color":"","title_style":"","license":"","footnotes":""},"categories":[2],"tags":[16],"class_list":["post-888","post","type-post","status-publish","format-standard","hentry","category-2","tag-sql"],"_links":{"self":[{"href":"https:\/\/eve2333.top\/index.php?rest_route=\/wp\/v2\/posts\/888","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/eve2333.top\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/eve2333.top\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/eve2333.top\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/eve2333.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=888"}],"version-history":[{"count":1,"href":"https:\/\/eve2333.top\/index.php?rest_route=\/wp\/v2\/posts\/888\/revisions"}],"predecessor-version":[{"id":889,"href":"https:\/\/eve2333.top\/index.php?rest_route=\/wp\/v2\/posts\/888\/revisions\/889"}],"wp:attachment":[{"href":"https:\/\/eve2333.top\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=888"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/eve2333.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=888"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/eve2333.top\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=888"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}