{"id":28703,"date":"2024-02-05T11:39:24","date_gmt":"2023-10-16T23:58:55","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/%e4%b8%ba%e4%ba%86%e5%9c%a8%e5%a4%96%e6%b1%87%e4%ba%a4%e6%98%93%e4%b8%ad%e8%8e%b7%e8%83%9c%ef%bc%8c%e7%ac%ac%e4%ba%8c%e9%83%a8%e5%88%86%ef%bc%9amysql%e8%bf%9e%e6%8e%a5\/"},"modified":"2025-08-12T09:38:02","modified_gmt":"2025-08-12T01:38:02","slug":"%e4%b8%ba%e4%ba%86%e5%9c%a8%e5%a4%96%e6%b1%87%e4%ba%a4%e6%98%93%e4%b8%ad%e8%8e%b7%e8%83%9c%ef%bc%8c%e7%ac%ac%e4%ba%8c%e9%83%a8%e5%88%86%ef%bc%9amysql%e8%bf%9e%e6%8e%a5","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/%e4%b8%ba%e4%ba%86%e5%9c%a8%e5%a4%96%e6%b1%87%e4%ba%a4%e6%98%93%e4%b8%ad%e8%8e%b7%e8%83%9c%ef%bc%8c%e7%ac%ac%e4%ba%8c%e9%83%a8%e5%88%86%ef%bc%9amysql%e8%bf%9e%e6%8e%a5\/","title":{"rendered":"\u4e3a\u4e86\u5728\u5916\u6c47\u4ea4\u6613\u4e2d\u83b7\u80dc\uff0c\u7b2c\u4e8c\u90e8\u5206\uff1aMySQL\u8fde\u63a5"},"content":{"rendered":"<p>\u8fd9\u662f\u524d\u4e00\u7bc7\u300a\u5982\u4f55\u5728\u5916\u6c47\u4ea4\u6613\u4e2d\u53d6\u80dc\uff08\u7b2c\u4e00\u90e8\u5206\uff09\u300b\u7684\u7eed\u7bc7\u3002<\/p>\n<p>\u6211\u627e\u5230\u4e86\u6c47\u7387\u4fe1\u606f\uff0c\u60f3\u8981\u5c06\u5176\u5b58\u5165\u6570\u636e\u5e93\u3002<br \/>\n\u6211\u51e0\u4e4e\u7167\u642c\u4e86\u4ee5\u4e0b\u9875\u9762\u4f5c\u4e3a\u53c2\u8003\uff0c\u5bf9\u6b64\u8868\u793a\u5f88\u62b1\u6b49\u3002<\/p>\n<p>\u3010\u53c2\u8003\u3011\u5b89\u88c5Mariadb\u5230\u6811\u8393\u6d3e\u7684\u7b14\u8bb0<br \/>\nPython3\u8fde\u63a5MySQL\u6709\u5f88\u591a\u65b9\u6cd5\uff0c\u4f46\u9996\u5148\u5c1d\u8bd5\u4f7f\u7528PyMySQL\u3002<\/p>\n<h2>\u5b89\u88c5\u8f6f\u4ef6\u5305<\/p>\n<p>\u5b89\u88c5\u5fc5\u8981\u7684\u8f6f\u4ef6\u5305\u6765\u6784\u5efaMySQL\u73af\u5883\u3002<\/p>\n<pre class=\"post-pre\"><code>pi@raspberrypi:~ $ sudo apt-get update\r\npi@raspberrypi:~ $ sudo apt-get install mysql-server\r\npi@raspberrypi:~ $ pip3 install PyMySQL\r\n<\/code><\/pre>\n<p>\u6700\u540e\uff0c\u6211\u4e0d\u592a\u786e\u5b9a\u662f\u5b89\u88c5\u4e86MySQL\u8fd8\u662f\u6700\u7ec8\u88ab\u8feb\u4f7f\u7528\u4e86MariaDB\uff0c\u4f46\u901a\u8fc7\u8fd9\u6837\u505a\uff0c\u6211\u88ab\u81ea\u5df1\u8bf4\u670d\u4e86\u8fd9\u6837\u5c31\u5b8c\u6210\u4e86MySQL\u7684\u8fd0\u884c\u73af\u5883\u3002<\/p>\n<h2>\u8bbe\u7f6e\u6839\u5bc6\u7801<\/p>\n<p>\u9806\u4fbf\u63d0\u4e00\u53e5\uff0c\u5728\u6a39\u8393\u6d3e\u4e0a\u4ece\u6765\u6ca1\u6709\u6ce8\u610f\u8fc7root\u5bc6\u7801\u7684\u4e8b\u60c5\u3002<br \/>\n\u4e3a\u4e86\u521b\u5efa\u6570\u636e\u5e93\uff0c\u6211\u4f1a\u5feb\u901f\u8fdb\u884c\u8bbe\u7f6e\u3002<\/p>\n<pre class=\"post-pre\"><code>pi@raspberrypi:~ $ sudo -i\r\nroot@raspberrypi:~# sudo \/usr\/bin\/mysql_secure_installation\r\n\r\n# root\u306b\u5bfe\u3057\u3066\u30d1\u30b9\u30ef\u30fc\u30c9\u3092\u8a2d\u5b9a\u3057\u3066\u3044\u306a\u3044\u5834\u5408\u306fEnter\u3067\u9032\u3080\r\nEnter current password for root (enter for none): \r\n\r\n# root\u306b\u5bfe\u3057\u3066\u65b0\u3057\u3044\u30d1\u30b9\u30ef\u30fc\u30c9\u3092\u8a2d\u5b9a\u3059\u308b\r\nSet root password? [Y\/n] y\r\nNew password: (root \u306e\u30d1\u30b9\u30ef\u30fc\u30c9\u3092\u8a2d\u5b9a)\r\nRe-enter new password: (root \u306e\u30d1\u30b9\u30ef\u30fc\u30c9\u3092\u8a2d\u5b9a)\r\n\r\nRemove anonymous users? [Y\/n] y\r\nDisallow root login remotely? [Y\/n] y\r\nRemove test database and access to it? [Y\/n] y\r\nReload privilege tables now? [Y\/n] y\r\n<\/code><\/pre>\n<h2>\u521b\u5efa\u6570\u636e\u5e93\u548c\u7528\u6237<\/p>\n<p>\u542c\u8bf4\u8fd9\u662f\u8981\u4f7f\u7528root\u5e10\u6237\u521b\u5efa\u7684\uff0c\u9700\u8981\u8f93\u5165root\u5bc6\u7801\u3002<\/p>\n<pre class=\"post-pre\"><code>root@raspberrypi:~# mysql\r\nMariaDB [(none)]&gt; USE mysql;\r\nMariaDB [mysql]&gt; SELECT user,password,plugin FROM user;\r\n+------+-------------------------------------------+-------------+\r\n| user | password                                  | plugin      |\r\n+------+-------------------------------------------+-------------+\r\n| root | ***************************************** | unix_socket |\r\n+------+-------------------------------------------+-------------+\r\n1 row in set (0.00 sec)\r\n\r\n# unix_socket \u30d7\u30e9\u30b0\u30a4\u30f3\u306f\u5916\u3059\r\nMariaDB [mysql]&gt; UPDATE USER SET plugin='' WHERE user='root';\r\nQuery OK, 1 row affected (0.00 sec)\r\nRows matched: 1  Changed: 1  Warnings: 0\r\n\r\nMariaDB [mysql]&gt; FLUSH PRIVILEGES;\r\nQuery OK, 0 rows affected (0.00 sec)\r\n\r\nMariaDB [mysql]&gt; QUIT;\r\nroot@raspberrypi:~# exit\r\n\r\npi@raspberrypi:~ $ mysql -u root -p\r\nEnter password: (root \u306e\u30d1\u30b9\u30ef\u30fc\u30c9\u3092\u5165\u529b)\r\n\r\nMariaDB [(none)]&gt; USE mysql;\r\nMariaDB [mysql]&gt; CREATE DATABASE fx;\r\nQuery OK, 1 row affected (0.00 sec)\r\n\r\nMariaDB [mysql]&gt; CREATE USER 'fxpi'@'localhost' IDENTIFIED BY '(fxpi \u306e\u30d1\u30b9\u30ef\u30fc\u30c9\u3092\u8a2d\u5b9a)';\r\nQuery OK, 0 rows affected (0.00 sec)\r\n\r\nMariaDB [mysql]&gt; GRANT ALL PRIVILEGES ON fx.* TO 'fxpi'@'localhost';\r\nQuery OK, 0 rows affected (0.01 sec)\r\n\r\nMariaDB [mysql]&gt; FLUSH PRIVILEGES;\r\nQuery OK, 0 rows affected (0.00 sec)\r\n\r\nMariaDB [mysql]&gt; SELECT user,password,plugin FROM user;\r\n+------+-------------------------------------------+--------+\r\n| user | password                                  | plugin |\r\n+------+-------------------------------------------+--------+\r\n| root | ***************************************** |        |\r\n| fxpi | ***************************************** |        |\r\n+------+-------------------------------------------+--------+\r\n2 rows in set (0.00 sec)\r\n\r\nMariaDB [mysql]&gt; QUIT;\r\n<\/code><\/pre>\n<p>\u6211\u4f1a\u521b\u5efa\u6570\u636e\u5e93\u201cfx\u201d\u548c\u7528\u6237\u201cfxpi\u201d\u3002\u67e5\u8be2 OK\uff0c0 \u884c\u53d7\u5f71\u54cd\uff0c\u4f46\u7ed3\u679c\u5df2\u7ecf\u6b63\u786e\u53cd\u6620\u4e86\u3002<\/p>\n<h2>\u521b\u5efa\u8868\u683c<\/p>\n<p>\u6211\u5011\u5c07\u5efa\u7acb\u4e00\u500b\u8a18\u9304\u532f\u7387\u7684\u8868\u683c\u3002<\/p>\n<ul class=\"post-ul\">\ntime \u65e5\u6642\uff08\u65e5\u6642\u578b\uff09<br \/>\ninstrument \u901a\u8ca8\u30da\u30a2\uff08\u53ef\u5909\u9577\u6587\u5b57\u5217\u578b\uff09<br \/>\nopen \u59cb\u5024\uff08\u4e0d\u52d5\u5c0f\u6570\u70b9\u578b\uff09<br \/>\nhigh \u9ad8\u5024\uff08\u4e0d\u52d5\u5c0f\u6570\u70b9\u578b\uff09<br \/>\nlow \u5b89\u5024\uff08\u4e0d\u52d5\u5c0f\u6570\u70b9\u578b\uff09<br \/>\nclose \u7d42\u5024\uff08\u4e0d\u52d5\u5c0f\u6570\u70b9\u578b\uff09\n<\/ul>\n<p>\u9996\u5148\uff0c\u5141\u8bb8\u6240\u6709\u5217\u4e3a\u7a7a\u3002<\/p>\n<pre class=\"post-pre\"><code>pi@raspberrypi:~ $ mysql -u fxpi -p\r\nEnter password: (fxpi \u306e\u30d1\u30b9\u30ef\u30fc\u30c9\u3092\u5165\u529b)\r\n\r\nMariaDB [(none)]&gt; USE fx;\r\nMariaDB [fx]&gt; CREATE TABLE tbl_candle (time DATETIME, instrument VARCHAR(7), open FLOAT, high FLOAT, low FLOAT, close FLOAT);\r\nQuery OK, 0 rows affected (0.07 sec)\r\n\r\nMariaDB [fx]&gt; DESCRIBE tbl_candle;\r\n+------------+------------+------+-----+---------+-------+\r\n| Field      | Type       | Null | Key | Default | Extra |\r\n+------------+------------+------+-----+---------+-------+\r\n| time       | datetime   | YES  |     | NULL    |       |\r\n| instrument | varchar(7) | YES  |     | NULL    |       |\r\n| open       | float      | YES  |     | NULL    |       |\r\n| high       | float      | YES  |     | NULL    |       |\r\n| low        | float      | YES  |     | NULL    |       |\r\n| close      | float      | YES  |     | NULL    |       |\r\n+------------+------------+------+-----+---------+-------+\r\n6 rows in set (0.01 sec)\r\n<\/code><\/pre>\n<h2>Python \u4ee3\u7801<\/p>\n<p>\u53ea\u63d0\u4f9b\u5dee\u5f02\u90e8\u5206\u3002<br \/>\n\u8bf7\u53c2\u8003\u6211\u4eec\u516c\u5f00\u7684 GitHub \u83b7\u53d6\u5b8c\u6574\u7684\u4ee3\u7801\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"kn\">import<\/span> <span class=\"nn\">pymysql.cursors<\/span>\r\n<\/code><\/pre>\n<p>import the module to connect to the database.<\/p>\n<pre class=\"post-pre\"><code><span class=\"c1\"># MySQL settings\r\n<\/span><span class=\"n\">host<\/span><span class=\"o\">=<\/span><span class=\"s\">\"localhost\"<\/span>\r\n<span class=\"n\">user<\/span><span class=\"o\">=<\/span><span class=\"s\">\"fxpi\"<\/span>\r\n<span class=\"n\">password<\/span><span class=\"o\">=<\/span><span class=\"s\">\"## fxpi's password ##\"<\/span>\r\n<span class=\"n\">db<\/span><span class=\"o\">=<\/span><span class=\"s\">\"fx\"<\/span>\r\n<span class=\"n\">charset<\/span><span class=\"o\">=<\/span><span class=\"s\">\"utf8mb4\"<\/span>\r\n<\/code><\/pre>\n<p>\u6211\u5c06\u8bbe\u7f6e\u6240\u9700\u7684\u8fde\u63a5\u4fe1\u606f\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"c1\"># DB connection\r\n<\/span><span class=\"n\">conn<\/span> <span class=\"o\">=<\/span> <span class=\"n\">pymysql<\/span><span class=\"p\">.<\/span><span class=\"n\">connect<\/span><span class=\"p\">(<\/span>\r\n    <span class=\"n\">host<\/span><span class=\"o\">=<\/span><span class=\"n\">host<\/span><span class=\"p\">,<\/span>\r\n    <span class=\"n\">user<\/span><span class=\"o\">=<\/span><span class=\"n\">user<\/span><span class=\"p\">,<\/span>\r\n    <span class=\"n\">password<\/span><span class=\"o\">=<\/span><span class=\"n\">password<\/span><span class=\"p\">,<\/span>\r\n    <span class=\"n\">db<\/span><span class=\"o\">=<\/span><span class=\"n\">db<\/span><span class=\"p\">,<\/span>\r\n    <span class=\"n\">charset<\/span><span class=\"o\">=<\/span><span class=\"n\">charset<\/span><span class=\"p\">,<\/span>\r\n    <span class=\"n\">cursorclass<\/span><span class=\"o\">=<\/span><span class=\"n\">pymysql<\/span><span class=\"p\">.<\/span><span class=\"n\">cursors<\/span><span class=\"p\">.<\/span><span class=\"n\">DictCursor<\/span>\r\n<span class=\"p\">)<\/span>\r\n\r\n<span class=\"c1\"># Insert DB\r\n<\/span><span class=\"k\">try<\/span><span class=\"p\">:<\/span>\r\n    <span class=\"k\">for<\/span> <span class=\"n\">raw<\/span> <span class=\"ow\">in<\/span> <span class=\"n\">response<\/span><span class=\"p\">[<\/span><span class=\"s\">\"candles\"<\/span><span class=\"p\">]:<\/span>\r\n        <span class=\"k\">with<\/span> <span class=\"n\">conn<\/span><span class=\"p\">.<\/span><span class=\"n\">cursor<\/span><span class=\"p\">()<\/span> <span class=\"k\">as<\/span> <span class=\"n\">cursor<\/span><span class=\"p\">:<\/span>\r\n            <span class=\"n\">sql<\/span>  <span class=\"o\">=<\/span> <span class=\"s\">\"INSERT INTO tbl_candle (time, instrument, open, high, low, close) \"<\/span>\r\n            <span class=\"n\">sql<\/span> <span class=\"o\">+=<\/span> <span class=\"s\">\"VALUES(%s, %s, %s, %s, %s, %s)\"<\/span>\r\n\r\n            <span class=\"n\">cursor<\/span><span class=\"p\">.<\/span><span class=\"n\">execute<\/span><span class=\"p\">(<\/span><span class=\"n\">sql<\/span><span class=\"p\">,<\/span> <span class=\"p\">(<\/span>\r\n                <span class=\"n\">raw<\/span><span class=\"p\">[<\/span><span class=\"s\">\"time\"<\/span><span class=\"p\">].<\/span><span class=\"n\">replace<\/span><span class=\"p\">(<\/span><span class=\"s\">\"000Z\"<\/span><span class=\"p\">,<\/span> <span class=\"s\">\"\"<\/span><span class=\"p\">).<\/span><span class=\"n\">replace<\/span><span class=\"p\">(<\/span><span class=\"s\">\"T\"<\/span><span class=\"p\">,<\/span> <span class=\"s\">\" \"<\/span><span class=\"p\">),<\/span>\r\n                <span class=\"n\">response<\/span><span class=\"p\">[<\/span><span class=\"s\">\"instrument\"<\/span><span class=\"p\">],<\/span>\r\n                <span class=\"n\">raw<\/span><span class=\"p\">[<\/span><span class=\"n\">price<\/span><span class=\"p\">][<\/span><span class=\"s\">\"o\"<\/span><span class=\"p\">],<\/span>\r\n                <span class=\"n\">raw<\/span><span class=\"p\">[<\/span><span class=\"n\">price<\/span><span class=\"p\">][<\/span><span class=\"s\">\"h\"<\/span><span class=\"p\">],<\/span>\r\n                <span class=\"n\">raw<\/span><span class=\"p\">[<\/span><span class=\"n\">price<\/span><span class=\"p\">][<\/span><span class=\"s\">\"l\"<\/span><span class=\"p\">],<\/span>\r\n                <span class=\"n\">raw<\/span><span class=\"p\">[<\/span><span class=\"n\">price<\/span><span class=\"p\">][<\/span><span class=\"s\">\"c\"<\/span><span class=\"p\">]<\/span>\r\n            <span class=\"p\">))<\/span>\r\n        <span class=\"n\">conn<\/span><span class=\"p\">.<\/span><span class=\"n\">commit<\/span><span class=\"p\">()<\/span>\r\n<span class=\"k\">finally<\/span><span class=\"p\">:<\/span>\r\n    <span class=\"n\">conn<\/span><span class=\"p\">.<\/span><span class=\"n\">close<\/span><span class=\"p\">()<\/span>\r\n<\/code><\/pre>\n<p>\u5b9e\u9645\u4e0a\u4f1a\u5efa\u7acb\u8fde\u63a5\u5e76\u6267\u884c INSERT \u8bed\u53e5\u3002<br \/>\n\u5373\u4f7f\u5728\u6267\u884c\u8fc7\u7a0b\u4e2d\u51fa\u73b0\u9519\u8bef\uff0c\u5f53\u524d\u7684\u4ee3\u7801\u5c06\u4f1a\u5ffd\u7565\u5e76\u7ee7\u7eed\u6267\u884c finally \u5757\u3002<br \/>\n\u6700\u540e\u4f1a\u4ece\u6570\u636e\u5e93\u65ad\u5f00\u8fde\u63a5\u3002<\/p>\n<p>\u6bcf\u6b21\u63d2\u5165\u4e00\u884c\u6570\u636e\u65f6\u90fd\u8981\u8fde\u63a5\u548c\u65ad\u5f00\u6570\u636e\u5e93\uff0c\u6240\u4ee5\u6709\u4e9b\u4f4e\u6548\uff0c\u4f46\u662f\u76f8\u6bd4\u4e8e\u4e00\u4e2a\u884c\u51fa\u73b0\u95ee\u9898\u5bfc\u81f4\u6240\u6709\u540e\u7eed\u884c\u90fd\u672a\u5904\u7406\uff0c\u6211\u8ba4\u4e3a\u8fd9\u8fd8\u662f\u597d\u4e00\u4e9b\u3002<\/p>\n<p>\u6211\u5df2\u7ecf\u66f4\u6539\u4e86 `raw[&#8220;time&#8221;]` \u7684\u4e24\u4e2a\u4f4d\u7f6e\uff0c\u56e0\u4e3a MySQL \u53d1\u51fa\u4e86\u4e00\u4e2a\u8b66\u544a\uff1a\u201c\u65e5\u671f\u65f6\u95f4\u683c\u5f0f\u6211\u4eec\u6682\u4e14\u81ea\u884c\u89e3\u91ca\u597d\u4e86\u201d\uff0c\u6240\u4ee5\u8fd9\u662f\u4e3a\u4e86\u5e94\u5bf9\u8fd9\u4e2a\u8b66\u544a\u3002\u867d\u7136\u6211\u4e0d\u786e\u5b9a\u8fd9\u662f\u5426\u6b63\u786e\uff0c\u4f46\u65e0\u8bba\u5982\u4f55\uff0c\u8b66\u544a\u5df2\u7ecf\u6d88\u5931\u4e86\u3002<\/p>\n<h2>\u8f93\u51fa\u7ed3\u679c (Ch\u016b l\u00ec ji\u00e9 gu\u01d2)<\/p>\n<pre class=\"post-pre\"><code>pi@raspberrypi:~ $ mysql -u fxpi -p\r\nEnter password: \r\nWelcome to the MariaDB monitor.  Commands end with ; or \\g.\r\nYour MariaDB connection id is 284\r\nServer version: 10.1.38-MariaDB-0+deb9u1 Raspbian 9.0\r\n\r\nCopyright (c) 2000, 2018, Oracle, MariaDB Corporation Ab and others.\r\n\r\nType 'help;' or '\\h' for help. Type '\\c' to clear the current input statement.\r\n\r\nMariaDB [(none)]&gt; USE fx;\r\nReading table information for completion of table and column names\r\nYou can turn off this feature to get a quicker startup with -A\r\n\r\nDatabase changed\r\nMariaDB [fx]&gt; SELECT * FROM tbl_candle WHERE instrument=\"USD_JPY\";\r\n+---------------------+------------+---------+---------+---------+---------+\r\n| time                | instrument | open    | high    | low     | close   |\r\n+---------------------+------------+---------+---------+---------+---------+\r\n| 2019-12-06 14:30:00 | USD_JPY    | 108.821 | 108.856 |   108.8 | 108.802 |\r\n| 2019-12-06 14:35:00 | USD_JPY    | 108.805 | 108.815 | 108.777 | 108.796 |\r\n| 2019-12-06 14:40:00 | USD_JPY    | 108.799 | 108.809 | 108.777 | 108.784 |\r\n+---------------------+------------+---------+---------+---------+---------+\r\n3 rows in set (0.01 sec)\r\n<\/code><\/pre>\n<p>\u65e0\u9700\u64cd\u5fc3\uff0c\u8721\u70db\u5f62\u6001\u4fe1\u606f\u5df2\u6210\u529f\u5199\u5165\u6570\u636e\u5e93\u3002<br \/>\n\u770b\u6765\u53ea\u80fd\u521b\u5efa\u4e00\u4e2a\u7f51\u7ad9\u6765\u5c55\u793a\u8721\u70db\u5f62\u6001\u4e86\u3002<\/p>\n<p>\u7ee7\u7eed\u4e0b\u53bb\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u8fd9\u662f\u524d\u4e00\u7bc7\u300a\u5982\u4f55\u5728\u5916\u6c47\u4ea4\u6613\u4e2d\u53d6\u80dc\uff08\u7b2c\u4e00\u90e8\u5206\uff09\u300b\u7684\u7eed\u7bc7\u3002 \u6211\u627e\u5230\u4e86\u6c47\u7387\u4fe1\u606f\uff0c\u60f3\u8981\u5c06\u5176\u5b58\u5165\u6570\u636e\u5e93\u3002 \u6211\u51e0\u4e4e\u7167\u642c\u4e86\u4ee5 [&hellip;]<\/p>\n","protected":false},"author":4,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[227],"class_list":["post-28703","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-227"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.5 (Yoast SEO v21.5) - 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