{"id":4990,"date":"2019-04-30T00:27:50","date_gmt":"2020-04-22T06:37:37","guid":{"rendered":"https:\/\/vip.fxxkpython.com\/?p=4990"},"modified":"2021-08-31T03:15:18","modified_gmt":"2021-08-30T19:15:18","slug":"91f36b41a8","status":"publish","type":"post","link":"https:\/\/vip.fxxkpython.com\/?p=4990","title":{"rendered":"python\u722c\u866b26 | \u628a\u6570\u636e\u722c\u53d6\u4e0b\u6765\u4e4b\u540e\u5c31\u5b58\u50a8\u5230\u4f60\u7684MySQL\u6570\u636e\u5e93\u3002"},"content":{"rendered":"
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\u5c0f\u5e05b\u8bf4\u8fc7<\/p>\n

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\u5728\u8fd9\u51e0\u7bc7\u4e2d\u4f1a\u7740\u91cd\u8bf4\u8bf4\u5c06\u722c\u53d6\u4e0b\u6765\u7684\u6570\u636e\u8fdb\u884c\u5b58\u50a8<\/p>\n

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\u4e0a\u6b21\u6211\u4eec\u8bf4\u4e86\u4e00\u79cd csv<\/a> \u7684\u5b58\u50a8\u65b9\u5f0f<\/p>\n

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\u8fd9\u6b21\u4e3b\u8981\u6765\u8bf4\u8bf4\u600e\u4e48\u5c06\u722c\u53d6\u4e0b\u6765\u7684\u6570\u636e\u4fdd\u5b58\u5230 MySQL<\/span> \u6570\u636e\u5e93<\/p>\n

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\u63a5\u4e0b\u6765\u5c31\u662f<\/p>\n

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\u5b66\u4e60python\u7684\u6b63\u786e\u59ff\u52bf<\/span><\/p>\n

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\"python\u722c\u866b26<\/p>\n

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\u771f\u9999\u5047\u8bbe<\/span><\/p>\n

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\u672c\u6587\u5047\u8bbe\u4f60\u5df2\u7ecf\u5b89\u88c5\u597dMySQL<\/p>\n

\n

\u5e76\u4e14\u61c2\u4e86\u4e00\u4e9b MySQL \u7684\u4f7f\u7528<\/p>\n

\n

\u4f8b\u5982\u7b80\u5355\u201c\u589e\u5220\u6539\u67e5\u201d\u7684\u8bed\u53e5<\/p>\n

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\u5982\u679c\u4f60\u8fd8\u6ca1\u5b89\u88c5 MySQL<\/p>\n

\n

\u53ef\u4ee5\u5230\u4ee5\u4e0b\u94fe\u63a5\u53bb\u5b89\u88c5\u4e00\u4e0b<\/p>\n

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https:\/\/www.mysql.com\/downloads\/<\/p>\n

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\"python\u722c\u866b26<\/p>\n

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\u5728\u4f60\u7684 MySQL \u4e2d\u521b\u5efa\u4e00\u4e2a\u6570\u636e\u5e93\u5427<\/p>\n

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\u5c31\u53eb…<\/p>\n

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AV-Idol<\/strong><\/p>\n

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\u7528 root \u7684\u8eab\u4efd\u8fdb\u5165\u4f60\u7684 MySQL<\/p>\n

\n
sudo<\/span>\u00a0mysql\u00a0-u\u00a0root\u00a0-p<\/span><\/code><\/pre>\n<\/section>\n
\n
\u8f93\u5165 MySQL \u7684\u7528\u6237\u540d\u5bc6\u7801\u4e4b\u540e<\/p>\n
\n
\u5c31\u53ef\u4ee5\u5f00\u59cb\u64cd\u4f5c MySQL \u5566<\/p>\n
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\u6211\u4eec\u6765\u521b\u5efa\u4e00\u4e2a\u6570\u636e\u5e93<\/p>\n
\n
\u5982\u679c avIdol \u8fd9\u4e2a\u6570\u636e\u5e93\u4e0d\u5b58\u5728\u4e8e\u6211\u4eec\u7684 MySQL \u91cc\u9762<\/p>\n
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\u90a3\u5c31\u521b\u5efa\u4e00\u4e2a\u51fa\u6765<\/p>\n
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mysql> create database if<\/span> not<\/span> exists<\/span> avIdol;\n<\/span><\/code>Query\u00a0OK,\u00a01<\/span>\u00a0row\u00a0affected\u00a0(0<\/span>.01<\/span>\u00a0sec)<\/span><\/code><\/pre>\n<\/section>\n
\n
\u8fd9\u6837<\/p>\n
\n
\u6211\u4eec\u5c31\u521b\u5efa\u51fa\u4e00\u4e2a\u6570\u636e\u5e93\u4e86<\/p>\n
\n
\n
\"python\u722c\u866b26<\/p>\n
\n
\n
\u63a5\u4e0b\u6765<\/p>\n
\n
\u6211\u4eec\u5c31\u4f7f\u7528 python \u6765\u64cd\u4f5c\u8fd9\u4e2a\u6570\u636e\u5e93\u5427<\/p>\n
\n
\u6211\u4eec\u9700\u8981\u4f7f\u7528\u5230\u00a0pymysql \u8fd9\u4e2a\u5e93<\/span><\/p>\n
\u00a0<\/span><\/p>\n
\u4e13\u95e8\u7528\u6765\u64cd\u4f5c MySQL \u7684<\/span><\/p>\n
\n
\u53ef\u4ee5\u7528 pip \u5b89\u88c5\u4e00\u4e0b<\/p>\n
\n
\n
\u00a0pip<\/span>\u00a0install\u00a0pymysql<\/span><\/code><\/pre>\n<\/section>\n
\n
\u63a5\u4e0b\u6765\u6211\u4eec\u5c31\u8fde\u63a5\u5230\u6211\u4eec\u521a\u521a\u521b\u5efa\u7684\u6570\u636e\u5e93<\/p>\n
\n
\u7136\u540e\u5728\u8fd9\u4e2a\u6570\u636e\u5e93\u91cc\u9762\u521b\u5efa\u4e00\u5f20\u00a0beautyGirls\u00a0<\/span>\u8868<\/p>\n
\n
\u4e13\u95e8\u7528\u6765\u5b58\u653e\u6f02\u4eae\u7f8e\u7709\u7684\u4fe1\u606f<\/p>\n
\n
\n
import<\/span> pymysql\n<\/span><\/code>\n<\/span><\/code>#\u00a0\u4f7f\u7528\u00a0connect\u00a0\u65b9\u6cd5\uff0c\u4f20\u5165\u6570\u636e\u5e93\u5730\u5740\uff0c\u8d26\u53f7\u5bc6\u7801\uff0c\u6570\u636e\u5e93\u540d\u5c31\u53ef\u4ee5\u5f97\u5230\u4f60\u7684\u6570\u636e\u5e93\u5bf9\u8c61<\/span><\/span><\/code>db = pymysql.connect(\"\u4f60\u7684\u6570\u636e\u5e93\u5730\u5740\"<\/span>, \"\u6570\u636e\u5e93\u8d26\u53f7\"<\/span>, \n<\/span><\/code>\"\u6570\u636e\u5e93\u5bc6\u7801\"<\/span>, \"avIdol\"<\/span>)\n<\/span><\/code>\n<\/span><\/code># \u63a5\u7740\u6211\u4eec\u83b7\u53d6 cursor \u6765\u64cd\u4f5c\u6211\u4eec\u7684 avIdol \u8fd9\u4e2a\u6570\u636e\u5e93\n<\/span><\/span><\/code>cursor = db.cursor()\n<\/span><\/code>\n<\/span><\/code># \u6bd4\u5982\u6211\u4eec\u6765\u521b\u5efa\u4e00\u5f20\u6570\u636e\u8868\n<\/span><\/span><\/code>sql = \"\"\"create table beautyGirls (\n<\/span><\/span><\/code>   name char(20) not null,\n<\/span><\/code>   age int)\"\"\"<\/span><\/code>cursor.execute(sql)\n<\/span><\/code>\n<\/span><\/code># \u6700\u540e\u6211\u4eec\u5173\u95ed\u8fd9\u4e2a\u6570\u636e\u5e93\u7684\u8fde\u63a5\n<\/span><\/span><\/code>db.close()<\/span><\/code><\/pre>\n<\/section>\n
\n
\u8fd0\u884c\u4e00\u4e0b<\/p>\n
\n
\u6ca1\u62a5\u4ec0\u4e48\u9519\u5c31\u8bf4\u660e\u6211\u4eec\u6210\u529f\u521b\u5efa\u6570\u636e\u8868\u4e86<\/p>\n
\n
\u6211\u4eec\u56de\u5230\u6570\u636e\u5e93\u770b\u4e0b\u662f\u5426\u521b\u5efa\u6210\u529f<\/p>\n
\n
\"python\u722c\u866b26<\/p>\n
\n
\u901a\u8fc7 show tables<\/p>\n
\n
\u53ef\u4ee5\u770b\u5230\u6211\u4eec\u6570\u636e\u5e93\u6210\u529f\u521b\u5efa\u4e86\u00a0beautyGirls \u8fd9\u5f20\u5a4a\uff0c\u54e6\u4e0d\uff0c\u8868<\/span><\/p>\n
\u00a0<\/span><\/p>\n
\u901a\u8fc7\u00a0show full columns from beautyGirls;<\/span><\/p>\n
\u00a0<\/span><\/p>\n
\u53ef\u4ee5\u770b\u5230\u6211\u4eec\u5728\u8fd9\u5f20\u8868\u4e2d\u521b\u5efa\u4e86 name \u548c age \u8fd9\u4e24\u4e2a\u5b57\u6bb5<\/span><\/p>\n
\u00a0<\/span><\/p>\n
\"python\u722c\u866b26<\/p>\n
\u00a0<\/span><\/p>\n
\u6709\u4e86\u6570\u636e\u5e93\u548c\u6570\u636e\u8868\u4e86<\/span><\/p>\n
\u00a0<\/span><\/p>\n
\u90a3\u4e48\u63a5\u4e0b\u6765\u6211\u4eec\u5c31\u5f80\u6570\u636e\u5e93\u63d2\u5165\u6570\u636e\u770b\u770b<\/span><\/p>\n
\n
\n
import pymysql\n<\/span><\/code>\n<\/span><\/code># \u4f7f\u7528 connect \u65b9\u6cd5\uff0c\u4f20\u5165\u6570\u636e\u5e93\u5730\u5740\uff0c\u8d26\u53f7\u5bc6\u7801\uff0c\u6570\u636e\u5e93\u540d\u5c31\u53ef\u4ee5\u5f97\u5230\u4f60\u7684\u6570\u636e\u5e93\u5bf9\u8c61\n<\/span><\/span><\/code>db = pymysql.connect(\"localhost\"<\/span>, \"root\"<\/span>, \"root\"<\/span>, \"avIdol\"<\/span>)\n<\/span><\/code>\n<\/span><\/code># \u63a5\u7740\u6211\u4eec\u83b7\u53d6 cursor \u6765\u64cd\u4f5c\u6211\u4eec\u7684 avIdol \u8fd9\u4e2a\u6570\u636e\u5e93\n<\/span><\/span><\/code>cursor = db.cursor()\n<\/span><\/code>\n<\/span><\/code># \u63d2\u5165\u4e00\u6761\u8bb0\u5f55<\/span><\/span><\/code>sql = \"insert into beautyGirls(name, age) values ('Mrs.cang', 18)\"\n<\/span><\/span><\/code>\n<\/span><\/code>try:\n<\/span><\/span><\/code>    cursor.execute(sql)\n<\/span><\/code>    db.commit()\n<\/span><\/code>except:\n<\/span><\/span><\/code>    # \u56de\u6eda\n<\/span><\/span><\/code>    db.rollback()\n<\/span><\/code>\n<\/span><\/code># \u6700\u540e\u6211\u4eec\u5173\u95ed\u8fd9\u4e2a\u6570\u636e\u5e93\u7684\u8fde\u63a5\n<\/span><\/span><\/code>db.close()<\/span><\/code><\/pre>\n<\/section>\n
\n
\u00a0<\/span><\/p>\n
\u518d\u6765\u6570\u636e\u5e93\u67e5\u8be2\u4e00\u4e0b\u8fd9\u5f20\u8868<\/p>\n
\n
\"python\u722c\u866b26<\/p>\n
\n
\u53ef\u4ee5\u770b\u5230<\/p>\n
\n
\u82cd\u8001\u5e08\u7684\u6570\u636e\u5c31\u88ab\u6211\u4eec\u63d2\u8fdb\u6765\u4e86<\/p>\n
\n
\"python\u722c\u866b26<\/p>\n
\n
\u5f53\u4f60\u4f7f\u7528 pymysql \u5bf9\u6570\u636e\u8fdb\u884c\u66f4\u65b0\u7684\u65f6\u5019<\/p>\n
\n
\u8bb0\u5f97\u8c03\u7528<\/p>\n
\n
db.commit()<\/pre>\n
\n
\u8fd9\u6837\u624d\u4f1a\u6267\u884c\u5230\u54e6<\/p>\n
\n
\u77e5\u9053\u5982\u4f55\u521b\u5efa\u6570\u636e\u8868\u3001\u63d2\u5165\u6570\u636e<\/p>\n
\n
\u90a3\u4e48\u5bf9\u4e8e\u66f4\u65b0\u6570\u636e\u4ee5\u53ca\u5220\u9664\u6570\u636e<\/p>\n
\n
\u4e5f\u662f\u540c\u6837\u7684\u9053\u7406<\/p>\n
\n
\u53ea\u662f sql \u8bed\u53e5\u4e0d\u540c\u800c\u5df2<\/p>\n
\n
\u6bd4\u5982\u5220\u9664 18 \u5c81\u7684\u82cd\u8001\u5e08<\/p>\n
\n
\n
sql = \"delete from beautyGirls where age = '%d'\"<\/span> % (18)\n<\/span><\/code>try:\n<\/span><\/span><\/code>\u00a0\u00a0\u00a0cursor.execute(sql)\n<\/span><\/code>   db.commit()\n<\/span><\/code>except:\n<\/span><\/span><\/code>   db.rollback()<\/span><\/code><\/pre>\n<\/section>\n
\n
\u53ef\u80fd\u4f60\u5728\u64cd\u4f5c\u6570\u636e\u5e93\u7684\u65f6\u5019<\/p>\n
\n
\u505a\u4e00\u4e9b\u6570\u636e\u7684\u66f4\u65b0\u6216\u8005\u6dfb\u52a0<\/p>\n
\n
\u6709\u4e9b\u6570\u636e\u5728\u6dfb\u52a0\u8fc7\u7a0b\u53ef\u80fd\u51fa\u73b0\u5f02\u5e38<\/p>\n
\n
\u4e3a\u4e86\u8ba9\u6211\u4eec\u7684\u6570\u636e\u80fd\u591f\u5b8c\u5168\u7684\u6dfb\u52a0<\/p>\n
\n
\u53ef\u4ee5\u4f7f\u7528<\/p>\n
\n
db.rollback()<\/p>\n
\n
\u56de\u6eda\u64cd\u4f5c<\/p>\n
\n
\u8fd9\u6837\u624d\u80fd\u8ba9\u6211\u4eec\u7684\u4e8b\u52a1\u5177\u6709\u4e00\u81f4\u6027<\/p>\n
\n
\"python\u722c\u866b26<\/p>\n
\n
\u5f53\u7136<\/p>\n
\n
\u6211\u4eec\u4e5f\u53ef\u4ee5\u5c06 csv \u4e2d\u7684\u5185\u5bb9\u63d2\u5165\u5230 MySQL \u4e2d<\/p>\n
\n
\u5c31\u62ff\u4e0a\u6b21\u6211\u4eec\u751f\u6210\u7684 xsb.csv \u6587\u4ef6\u6765\u8bf4<\/p>\n
\n
\"python\u722c\u866b26<\/p>\n
\n
\u6211\u4eec\u628a\u8fd9\u91cc\u9762\u7684\u5185\u5bb9\u63d2\u5230 xsb \u6570\u636e\u5e93\u5427<\/p>\n
\n
\u8fd8\u662f\u4e00\u6837\uff0c\u6211\u4eec\u6765\u521b\u5efa\u4e00\u4e2a\u53eb\u505a xsb \u7684\u6570\u636e\u5e93<\/p>\n
\n
\u5e76\u4e14\u628a\u5b57\u7b26\u96c6\u8bbe\u7f6e\u4e3a UFT-8 \uff0c\u9632\u6b62\u4e2d\u6587\u4e71\u7801<\/p>\n
\n
\n
mysql><\/span>\u00a0CREATE\u00a0DATABASE\u00a0xsb\u00a0CHARACTER\u00a0SET\u00a0utf8\u00a0COLLATE\u00a0utf8_general_ci;<\/span><\/span><\/code><\/pre>\n<\/section>\n
\n
\u63a5\u7740\u521b\u5f20\u5e05b\u8868<\/p>\n
\n
\n
mysql> CREATE TABLE xsb<\/span> (name char<\/span>(20<\/span>), age char<\/span>(20<\/span>), length char<\/span>(20<\/span>))<\/span><\/span>;\n<\/span><\/code>Query\u00a0OK,\u00a00<\/span>\u00a0rows\u00a0affected<\/span>\u00a0(0.34<\/span>\u00a0sec)<\/span><\/span><\/span><\/code><\/pre>\n<\/section>\n
\n
\u56de\u5230\u4ee3\u7801\u6765<\/p>\n
\n
\u8fd9\u6b21\u6211\u4eec\u5b89\u88c5\u4e00\u4e0b mysql \u7684 python \u5ba2\u6237\u7aef<\/p>\n
\n
\n
pip<\/span> install mysqlclient <\/span><\/code><\/pre>\n<\/section>\n
\n
\u4f7f\u7528\u00a0sqlalchemy \u6765\u8fde\u63a5\u6211\u4eec\u7684\u6570\u636e\u5e93<\/p>\n
\n
\u7136\u540e\u5c31\u53ef\u4ee5\u4f7f\u7528\u4ee3\u7801\u5c06 csv \u6587\u4ef6\u7684\u5185\u5bb9\u63d2\u5230 xsb \u8fd9\u5f20\u8868\u4e86<\/p>\n
\n
\n
import<\/span> pandas as<\/span> pd\n<\/span><\/code>from<\/span> sqlalchemy import<\/span> create_engine\n<\/span><\/code>\n<\/span><\/code>df = pd.read_csv('xsb.csv'<\/span>)\n<\/span><\/code>\n<\/span><\/code># \u5f53engine\u8fde\u63a5\u7684\u65f6\u5019\u6211\u4eec\u5c31\u63d2\u5165\u6570\u636e\n<\/span><\/span><\/code>engine = create_engine('mysql:\/\/root@localhost\/xsb?charset=utf8'<\/span>)\n<\/span><\/code>with<\/span> engine.connect() as<\/span> conn, conn.begin():\n<\/span><\/code>    df.to_sql('xsb'<\/span>, conn, if_exists='replace'<\/span>)<\/span><\/code><\/pre>\n<\/section>\n
\n
\u8fd0\u884c\u4e00\u4e0b<\/p>\n
\n
\u7136\u540e\u6253\u5f00\u6211\u4eec\u521a\u521a\u521b\u5efa\u7684 xsb \u6570\u636e\u5e93\u67e5\u8be2\u4e00\u4e0b<\/p>\n
\n
\"python\u722c\u866b26<\/p>\n
\n
\u53ef\u4ee5\u770b\u5230<\/p>\n
\n
\u6211\u4eec\u5c31\u5c06 csv \u4e2d\u7684\u5185\u5bb9\u63d2\u5165\u5230\u6570\u636e\u5e93\u5566<\/p>\n
\n
\"python\u722c\u866b26<\/p>\n
\n
ok<\/p>\n
\n
\u4ee5\u4e0a\u5c31\u662f\u4f7f\u7528 python \u64cd\u4f5c\u6570\u636e\u5e93\u7684\u5177\u4f53\u64cd\u4f5c<\/p>\n
\n
\u4ee5\u540e\u5c0f\u5e05b\u5728\u722c\u866b\u9879\u76ee\u4f8b\u5b50\u4e2d\u8fd8\u4f1a\u63d0\u53ca MySQL<\/p>\n
\n
\u90a3\u4e48<\/p>\n
\n
\u6211\u4eec\u4e0b\u56de\u89c1<\/p>\n
\n
peace<\/span><\/p>\n
\n
\"python\u722c\u866b26<\/span><\/a><\/p>\n
\u539f\u6587\u59cb\u53d1\u4e8e\u5fae\u4fe1\u516c\u4f17\u53f7\uff08\u5b66\u4e60python\u7684\u6b63\u786e\u59ff\u52bf\uff09\uff1apython\u722c\u866b26 | \u628a\u6570\u636e\u722c\u53d6\u4e0b\u6765\u4e4b\u540e\u5c31\u5b58\u50a8\u5230\u4f60\u7684MySQL\u6570\u636e\u5e93\u3002<\/a><\/p><\/blockquote>\n<\/div>\n","protected":false},"excerpt":{"rendered":"
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