{"id":8635,"date":"2023-05-12T17:35:12","date_gmt":"2023-05-12T09:35:12","guid":{"rendered":"\/?p=8635"},"modified":"2023-05-12T17:35:54","modified_gmt":"2023-05-12T09:35:54","slug":"sqlite3%e6%9f%a5%e8%af%a2%e7%bb%93%e6%9e%9c%e4%bb%a5%e5%ad%97%e5%85%b8%e5%bd%a2%e5%bc%8f%e8%bf%94%e5%9b%9e","status":"publish","type":"post","link":"\/?p=8635","title":{"rendered":"sqlite3\u67e5\u8be2\u7ed3\u679c\u4ee5\u5b57\u5178\u5f62\u5f0f\u8fd4\u56de"},"content":{"rendered":"<h2>\u4e00\u3001\u95ee\u9898\u63cf\u8ff0<\/h2>\n<p>python\u7684sqlite3\u63a5\u53e3\u76f4\u63a5\u4f7f\u7528fetchone\u6216fetchall\u8fd4\u56de\u7684\u7ed3\u679c\u662f\u5143\u7ec4\u548c\u5143\u7ec4\u5217\u8868\uff0c\u4e0d\u80fd\u76f4\u89c2\u7684\u770b\u51fa\u6bcf\u4e2a\u5143\u7d20\u5bf9\u5e94\u7684\u540d\u79f0\u662f\u4ec0\u4e48\uff0c\u5982\u4e0b\u56fe\u6240\u793a\uff1a<\/p>\n<p>\u4f7f\u7528fetchone\u8fd4\u56de\u7684\u67e5\u8be2\u7ed3\u679c\uff1a<\/p>\n<p><img src=\"https:\/\/lemon-guess.oss-cn-hangzhou.aliyuncs.com\/img\/e273d57e3ec2da5ee9bfae173eba63533a7a3865.png@942w_123h_progressive-168388385641811.webp\" alt=\"img\" \/><\/p>\n<p>\u4f7f\u7528fetchall\u8fd4\u56de\u7684\u67e5\u8be2\u7ed3\u679c\uff1a<\/p>\n<p><img src=\"https:\/\/lemon-guess.oss-cn-hangzhou.aliyuncs.com\/img\/135d535dac94384f1c98ec114a403795e463ae1f.png@942w_92h_progressive.webp\" alt=\"img\" \/><\/p>\n<h2>\u4e8c\u3001\u89e3\u51b3\u65b9\u6848<\/h2>\n<p>\u5728\u521b\u5efasqlite3\u6570\u636e\u5e93\u8fde\u63a5\u83b7\u5f97conn\u53e5\u67c4\u540e\uff0c\u8be5\u53e5\u67c4\u62e5\u6709\u4e00\u4e2a\u5c5e\u6027row_factory\uff0c\u8be5\u5c5e\u6027\u63a7\u5236\u7740\u6e38\u6807\u8fd4\u56de\u7684\u7ed3\u679c\u5f62\u5f0f<\/p>\n<p>\u90a3\u6211\u4eec\u5c31\u6309\u7167\u5b98\u65b9\u6587\u6863\u8bf4\u660e\u7684\u6837\u4f8b\u4fee\u6539\u8be5\u5c5e\u6027\uff0c\u4f7f\u5f97\u8fd4\u56de\u7ed3\u679c\u4e3a\u4e00\u4e2a\u5bf9\u8c61\uff0c\u8be5\u5bf9\u8c61\u53ef\u4ee5\u6309\u540d\u79f0\u8bbf\u95ee\u5230\u3002<\/p>\n<p>\u53c2\u8003\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n<pre><code class=\"language-python\">@staticmethod\ndef dict_factory(cursor, row):\n\n  # \u5c06\u6e38\u6807\u83b7\u53d6\u7684\u6570\u636e\u5904\u7406\u6210\u5b57\u5178\u8fd4\u56de\n\n    d = {}\n    for idx, col in enumerate(cursor.description):\n        d[col[0]] = row[idx]\n    return d\n\ndef connect(self):\n    # \u5efa\u7acb\u548c\u6570\u636e\u5e93sample.db\u7684\u8fde\u63a5\n    conn = sqlite3.connect(self.db_file)\n    # \u4f7f\u5f97\u67e5\u8be2\u7ed3\u679c\u4ee5\u5b57\u5178\u5f62\u5f0f\u8fd4\u56de\n    conn.row_factory = SqliteUtils.dict_factory\n    # \u521b\u5efa\u6e38\u6807\u4ee5\u7528\u4e8e\u6267\u884csql\n    cursor = conn.cursor()\n    return conn, cursor<\/code><\/pre>\n<p>\u67e5\u770bdict_factory\u4e2d\u7684cursor.description\u8f93\u51fa\u5185\u5bb9\uff0c\u8fd4\u56de\u7684\u662f\u6570\u636e\u5e93\u8868\u7684\u6bcf\u4e2a\u5b57\u6bb5\u672c\u8eab\u7684\u4fe1\u606f\uff1a<\/p>\n<p><img src=\"https:\/\/lemon-guess.oss-cn-hangzhou.aliyuncs.com\/img\/1f55642ae08f58eec14d137e108742a278693e70.png@942w_41h_progressive.webp\" alt=\"img\" \/><\/p>\n<p>\u518d\u6b21\u4f7f\u7528\u67e5\u8be2\u8bed\u53e5\u67e5\u770b\u8fd4\u56de\u7ed3\u679c\uff1a<\/p>\n<p>\u4f7f\u7528fetchone\u8fd4\u56de\u7684\u67e5\u8be2\u7ed3\u679c\uff0c\u53ef\u4ee5\u770b\u5230\u8fd4\u56de\u7ed3\u679c\u4ee5\u5b57\u5178\u5f62\u5f0f\u5c55\u793a\uff1a<\/p>\n<p><img src=\"https:\/\/lemon-guess.oss-cn-hangzhou.aliyuncs.com\/img\/d60f098432a82057f6f9377edc8cf9322397c79e.png@942w_107h_progressive.webp\" alt=\"img\" \/><br \/>\n\u4f7f\u7528fetchall\u8fd4\u56de\u7684\u67e5\u8be2\u7ed3\u679c\uff0cfetchall\u8fd4\u56de\u7684\u662f\u4e00\u4e2alist\u6570\u7ec4\uff0c\u6bcf\u4e2a\u5143\u7d20\u90fd\u662f\u4e00\u4e2adict\u5b57\u5178\uff1a<\/p>\n<p><img src=\"https:\/\/lemon-guess.oss-cn-hangzhou.aliyuncs.com\/img\/498e56eba2f8931e2ebeadb5ecf4ccf4f0f331f3.png@942w_467h_progressive.webp\" alt=\"img\" \/><\/p>\n<p>demo\u6837\u4f8b\uff1a<a href=\"https:\/\/gitee.com\/atiaisi\/py_learn\/blob\/master\/10_DataBaseOperation\/10_01_sqlite.py\">https:\/\/gitee.com\/atiaisi\/py_learn\/blob\/master\/10_DataBaseOperation\/10_01_sqlite.py<\/a><\/p>\n<h2>\u4e09\u3001\u53c2\u8003\u8d44\u6599<\/h2>\n<p>python sqlite3\u5b98\u65b9\u6587\u6863\uff1a<\/p>\n<p><a href=\"https:\/\/docs.python.org\/2\/library\/sqlite3.html#sqlite3.Connection.row_factory\">https:\/\/docs.python.org\/2\/library\/sqlite3.html#sqlite3.Connection.row_factory<\/a> <\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e00\u3001\u95ee\u9898\u63cf\u8ff0 python\u7684sqlite3\u63a5\u53e3\u76f4\u63a5\u4f7f\u7528fetchone\u6216fetchall\u8fd4\u56de\u7684\u7ed3\u679c\u662f\u5143\u7ec4\u548c\u5143\u7ec4\u5217\u8868\uff0c\u4e0d\u80fd\u76f4\u89c2\u7684\u770b\u51fa\u6bcf\u4e2a\u5143   \u2026 &#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"ngg_post_thumbnail":0},"categories":[156],"tags":[16,157],"_links":{"self":[{"href":"\/index.php?rest_route=\/wp\/v2\/posts\/8635"}],"collection":[{"href":"\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=8635"}],"version-history":[{"count":2,"href":"\/index.php?rest_route=\/wp\/v2\/posts\/8635\/revisions"}],"predecessor-version":[{"id":8637,"href":"\/index.php?rest_route=\/wp\/v2\/posts\/8635\/revisions\/8637"}],"wp:attachment":[{"href":"\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=8635"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=8635"},{"taxonomy":"post_tag","embeddable":true,"href":"\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=8635"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}