{"id":2309,"date":"2025-03-04T08:31:15","date_gmt":"2025-03-04T00:31:15","guid":{"rendered":"https:\/\/www.laixuexila.com\/?p=2309"},"modified":"2025-03-04T08:31:15","modified_gmt":"2025-03-04T00:31:15","slug":"sqlite-%e5%88%86%e7%a6%bb%e6%95%b0%e6%8d%ae%e5%ba%93%ef%bc%88detach-database%ef%bc%89","status":"publish","type":"post","link":"https:\/\/www.laixuexila.com\/index.php\/2025\/03\/04\/sqlite-%e5%88%86%e7%a6%bb%e6%95%b0%e6%8d%ae%e5%ba%93%ef%bc%88detach-database%ef%bc%89\/","title":{"rendered":"SQLite \u5206\u79bb\u6570\u636e\u5e93\uff08DETACH DATABASE\uff09"},"content":{"rendered":"\n
\n

\u5728 SQLite \u4e2d\uff0c\u5206\u79bb\u6570\u636e\u5e93\uff08DETACH DATABASE\uff09<\/strong> \u7528\u4e8e\u79fb\u9664\u4f7f\u7528 ATTACH DATABASE<\/code> \u547d\u4ee4\u9644\u52a0\u7684\u6570\u636e\u5e93\u3002\u5206\u79bb\u540e\uff0c\u8be5\u6570\u636e\u5e93\u5728\u5f53\u524d\u4f1a\u8bdd\u4e2d\u4e0d\u518d\u53ef\u7528\uff0c\u4f46\u6570\u636e\u5e93\u6587\u4ef6\u4ecd\u7136\u4fdd\u7559\u3002<\/p>\n<\/blockquote>\n\n\n\n

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1. \u8bed\u6cd5<\/strong><\/h2>\n\n\n\n
DETACH DATABASE database_alias;<\/code><\/pre>\n\n\n\n
    \n
  • database_alias<\/code>\uff1a\u8981\u5206\u79bb\u7684\u6570\u636e\u5e93\u7684\u522b\u540d\uff08\u5373 ATTACH DATABASE<\/code> \u8bed\u53e5\u4e2d\u6307\u5b9a\u7684\u522b\u540d\uff09\u3002<\/li>\n<\/ul>\n\n\n\n
    \n\n\n\n
    2. \u793a\u4f8b<\/strong><\/h2>\n\n\n\n
    (1) \u9644\u52a0\u6570\u636e\u5e93<\/strong><\/h3>\n\n\n\n
    \u9996\u5148\uff0c\u9644\u52a0\u4e00\u4e2a\u6570\u636e\u5e93\uff1a<\/p>\n\n\n\n
    ATTACH DATABASE 'extra.db' AS extra;<\/code><\/pre>\n\n\n\n
    (2) \u786e\u8ba4\u6570\u636e\u5e93\u662f\u5426\u9644\u52a0<\/strong><\/h3>\n\n\n\n
    PRAGMA database_list;<\/code><\/pre>\n\n\n\n
    \u793a\u4f8b\u8f93\u51fa\uff1a<\/p>\n\n\n\n
    seq  name  file\n0    main  \/path\/to\/main.db\n1    extra \/path\/to\/extra.db<\/code><\/pre>\n\n\n\n
    extra<\/code> \u6570\u636e\u5e93\u5df2\u9644\u52a0\u3002<\/p>\n\n\n\n
    (3) \u5206\u79bb\u6570\u636e\u5e93<\/strong><\/h3>\n\n\n\n
    DETACH DATABASE extra;<\/code><\/pre>\n\n\n\n
    (4) \u786e\u8ba4\u6570\u636e\u5e93\u5df2\u5206\u79bb<\/strong><\/h3>\n\n\n\n
    \u518d\u6b21\u8fd0\u884c\uff1a<\/p>\n\n\n\n
    PRAGMA database_list;<\/code><\/pre>\n\n\n\n
    \u8f93\u51fa\uff1a<\/p>\n\n\n\n
    seq  name  file\n0    main  \/path\/to\/main.db<\/code><\/pre>\n\n\n\n
    extra<\/code> \u6570\u636e\u5e93\u5df2\u88ab\u6210\u529f\u5206\u79bb\u3002<\/p>\n\n\n\n
    \n\n\n\n
    3. Python \u4ee3\u7801\u793a\u4f8b<\/strong><\/h2>\n\n\n\n
    \u5728 Python \u4ee3\u7801\u4e2d\u6267\u884c DETACH DATABASE<\/code>\uff1a<\/p>\n\n\n\n
    import sqlite3\n\n# \u8fde\u63a5\u5230 SQLite \u4e3b\u6570\u636e\u5e93\nconn = sqlite3.connect('main.db')\ncursor = conn.cursor()\n\n# \u9644\u52a0 extra.db\ncursor.execute(\"ATTACH DATABASE 'extra.db' AS extra;\")\n\n# \u67e5\u8be2\u6570\u636e\u5e93\u5217\u8868\ncursor.execute(\"PRAGMA database_list;\")\nprint(\"\u9644\u52a0\u6570\u636e\u5e93\u524d:\", cursor.fetchall())\n\n# \u5206\u79bb extra.db\ncursor.execute(\"DETACH DATABASE extra;\")\n\n# \u518d\u6b21\u67e5\u8be2\u6570\u636e\u5e93\u5217\u8868\ncursor.execute(\"PRAGMA database_list;\")\nprint(\"\u5206\u79bb\u6570\u636e\u5e93\u540e:\", cursor.fetchall())\n\n# \u5173\u95ed\u8fde\u63a5\nconn.close()<\/code><\/pre>\n\n\n\n
    \n\n\n\n
    4. \u5173\u952e\u6ce8\u610f\u4e8b\u9879<\/strong><\/h2>\n\n\n\n
      \n
    • DETACH DATABASE<\/code> \u53ea\u5728\u5f53\u524d\u8fde\u63a5\u4e2d\u751f\u6548<\/strong>\uff0c\u5206\u79bb\u540e\u5982\u679c\u91cd\u65b0\u8fde\u63a5 SQLite\uff0c\u4ecd\u7136\u53ef\u4ee5 ATTACH<\/code> \u8be5\u6570\u636e\u5e93\u3002<\/li>\n\n\n\n
    • \u65e0\u6cd5\u5206\u79bb main<\/code> \u6570\u636e\u5e93<\/strong>\uff0c\u56e0\u4e3a\u5b83\u662f SQLite \u7684\u9ed8\u8ba4\u6570\u636e\u5e93\u3002<\/li>\n\n\n\n
    • \u5982\u679c\u6709\u672a\u63d0\u4ea4\u7684\u4e8b\u52a1<\/strong>\uff0cSQLite \u53ef\u80fd\u4f1a\u62a5\u9519\uff0c\u9700\u8981\u5148 COMMIT<\/code> \u6216 ROLLBACK<\/code> \u4e8b\u52a1\u540e\u518d DETACH<\/code>\u3002<\/li>\n<\/ul>\n\n\n\n
      \n\n\n\n
      5. \u603b\u7ed3<\/strong><\/h2>\n\n\n\n
        \n
      • DETACH DATABASE<\/code> \u7528\u4e8e\u4ece\u5f53\u524d\u4f1a\u8bdd\u4e2d\u79fb\u9664\u9644\u52a0\u6570\u636e\u5e93\u3002<\/li>\n\n\n\n
      • \u53ea\u80fd\u5206\u79bb ATTACH DATABASE<\/code> \u9644\u52a0\u7684\u6570\u636e\u5e93\uff0cmain<\/code> \u6570\u636e\u5e93\u4e0d\u80fd\u88ab\u5206\u79bb\u3002<\/li>\n\n\n\n
      • PRAGMA database_list;<\/code> \u53ef\u7528\u4e8e\u68c0\u67e5\u5f53\u524d\u8fde\u63a5\u7684\u6570\u636e\u5e93\u3002<\/li>\n\n\n\n
      • \u5728 Python \u7b49\u7f16\u7a0b\u8bed\u8a00\u4e2d\uff0c\u4e5f\u53ef\u4ee5\u4f7f\u7528 DETACH DATABASE<\/code> \u8fdb\u884c\u6570\u636e\u5e93\u7ba1\u7406\u3002<\/li>\n<\/ul>\n\n\n\n
        \u66f4\u591a\u8be6\u7ec6\u5185\u5bb9\u8bf7\u5173\u6ce8\u5176\u4ed6\u76f8\u5173\u6587\u7ae0\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
        \u5728 SQLite \u4e2d\uff0c\u5206\u79bb\u6570\u636e\u5e93\uff08DETACH DATABASE\uff09 \u7528\u4e8e\u79fb\u9664\u4f7f\u7528 ATTACH DATABAS […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[76],"tags":[],"class_list":["post-2309","post","type-post","status-publish","format-standard","hentry","category-sqlite"],"_links":{"self":[{"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/posts\/2309","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/comments?post=2309"}],"version-history":[{"count":1,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/posts\/2309\/revisions"}],"predecessor-version":[{"id":2310,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/posts\/2309\/revisions\/2310"}],"wp:attachment":[{"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/media?parent=2309"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/categories?post=2309"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/tags?post=2309"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}