{"id":5394,"date":"2024-11-14T08:28:48","date_gmt":"2024-11-14T00:28:48","guid":{"rendered":"https:\/\/fwq.ai\/blog\/5394\/"},"modified":"2024-11-14T08:28:48","modified_gmt":"2024-11-14T00:28:48","slug":"mysql%e6%80%8e%e4%b9%88%e6%9f%a5%e6%89%be%e8%a1%a8%e7%bb%93%e6%9e%84","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/5394\/","title":{"rendered":"mysql\u600e\u4e48\u67e5\u627e\u8868\u7ed3\u6784"},"content":{"rendered":"<blockquote><p>\n  \u6700\u76f4\u63a5\u7684 mysql \u8868\u7ed3\u6784\u67e5\u627e\u65b9\u6cd5\u662f\u4f7f\u7528 desc \u547d\u4ee4\uff0c\u5b83\u663e\u793a\u5217\u540d\u3001\u6570\u636e\u7c7b\u578b\u3001\u7ea6\u675f\u548c\u9ed8\u8ba4\u503c\u7b49\u7ed3\u6784\u4fe1\u606f\u3002\u6b64\u5916\uff0c\u8fd8\u53ef\u4ee5\u4f7f\u7528 information_schema \u8868\uff08columns \u548c tables\uff09\u3001show create table \u547d\u4ee4\u6216 get_metadata \u51fd\u6570\u6765\u83b7\u53d6\u8868\u7684\u5143\u6570\u636e\uff0c\u5305\u62ec\u5217\u540d\u548c\u6570\u636e\u7c7b\u578b\u3002\n<\/p><\/blockquote>\n<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/202405\/28\/2024052810362317347.jpg\" class=\"aligncenter\" title=\"mysql\u600e\u4e48\u67e5\u627e\u8868\u7ed3\u6784\u63d2\u56fe\" alt=\"mysql\u600e\u4e48\u67e5\u627e\u8868\u7ed3\u6784\u63d2\u56fe\" \/><\/p>\n<p><strong>\u5982\u4f55\u67e5\u627e MySQL \u8868\u7ed3\u6784<\/strong><\/p>\n<p>\u67e5\u627e MySQL \u8868\u7ed3\u6784\u7684\u5e38\u89c1\u65b9\u6cd5\u5982\u4e0b\uff1a<\/p>\n<p><strong>1. DESC \u547d\u4ee4<\/strong><\/p>\n<p>DESC \u547d\u4ee4\u662f\u6700\u76f4\u63a5\u7684\u65b9\u6cd5\uff0c\u5b83\u5c06\u663e\u793a\u8868\u7684\u7ed3\u6784\u4fe1\u606f\uff0c\u5305\u62ec\u5217\u540d\u3001\u6570\u636e\u7c7b\u578b\u3001\u957f\u5ea6\u3001\u7ea6\u675f\u548c\u9ed8\u8ba4\u503c\u3002<\/p>\n<p>\u7528\u6cd5\uff1a<\/p>\n<pre>DESC table_name;<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>2. INFORMATION_SCHEMA \u8868<\/strong><\/p>\n<p>INFORMATION_SCHEMA \u6570\u636e\u5e93\u5305\u542b\u6709\u5173\u6570\u636e\u5e93\u5bf9\u8c61\uff08\u5305\u62ec\u8868\uff09\u7684\u4fe1\u606f\u3002COLUMNS \u8868\u5b58\u50a8\u6240\u6709\u5217\u7684\u4fe1\u606f\uff0cTABLES \u8868\u5b58\u50a8\u8868\u7ea7\u4fe1\u606f\u3002<\/p>\n<p>\u7528\u6cd5\uff1a<\/p>\n<pre>SELECT * FROM INFORMATION_SCHEMA.COLUMNS WHERE TABLE_NAME = 'table_name';\nSELECT * FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_NAME = 'table_name';<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>3. SHOW CREATE TABLE<\/strong><\/p>\n<p>SHOW CREATE TABLE \u547d\u4ee4\u5c06\u663e\u793a\u8868\u7684\u521b\u5efa\u8bed\u53e5\uff0c\u5176\u4e2d\u5305\u542b\u8868\u7684\u7ed3\u6784\u4fe1\u606f\u3002<\/p>\n<p>\u7528\u6cd5\uff1a<\/p>\n<pre>SHOW CREATE TABLE table_name;<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>4. \u83b7\u53d6\u5143\u6570\u636e<\/strong><\/p>\n<p>\u53ef\u4ee5\u4f7f\u7528 get_metadata \u51fd\u6570\u6765\u83b7\u53d6\u8868\u7684\u5143\u6570\u636e\uff0c\u5305\u62ec\u5217\u540d\u3001\u6570\u636e\u7c7b\u578b\u548c\u5176\u4ed6\u4fe1\u606f\u3002<\/p>\n<p>\u7528\u6cd5\uff08Python\uff09\uff1a<\/p>\n<pre>import mysql.connector\n\nmydb = mysql.connector.connect(\n    host=\"localhost\",\n    user=\"username\",\n    password=\"password\",\n    database=\"database_name\"\n)\n\nmycursor = mydb.cursor()\n\nmycursor.execute(\"SHOW FULL COLUMNS FROM table_name\")\ncolumns = mycursor.fetchall()\n\nfor column in columns:\n    print(column)<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u4ee5\u4e0a\u5c31\u662f\u600e\u4e48\u67e5\u627e\u8868\u7ed3\u6784\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8\u7c73\u4e91\u7f51\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6700\u76f4\u63a5\u7684 mysql \u8868\u7ed3\u6784\u67e5\u627e\u65b9\u6cd5\u662f\u4f7f\u7528 desc \u547d\u4ee4\uff0c\u5b83\u663e\u793a\u5217\u540d\u3001\u6570\u636e\u7c7b\u578b\u3001\u7ea6\u675f\u548c\u9ed8\u8ba4\u503c\u7b49\u7ed3\u6784\u4fe1\u606f\u3002\u6b64\u5916\uff0c\u8fd8\u53ef\u4ee5\u4f7f\u7528 information_schema \u8868\uff08columns \u548c tables\uff09\u3001show create table \u547d\u4ee4\u6216 get_metadata \u51fd\u6570\u6765\u83b7\u53d6\u8868\u7684\u5143\u6570\u636e\uff0c\u5305\u62ec\u5217\u540d\u548c\u6570\u636e\u7c7b\u578b\u3002 \u5982\u4f55\u67e5\u627e MySQL \u8868\u7ed3\u6784 \u67e5\u627e MySQL \u8868\u7ed3\u6784\u7684\u5e38\u89c1\u65b9\u6cd5\u5982\u4e0b\uff1a 1. DESC \u547d\u4ee4 DESC \u547d\u4ee4\u662f\u6700\u76f4\u63a5\u7684\u65b9\u6cd5\uff0c\u5b83\u5c06\u663e\u793a\u8868\u7684\u7ed3\u6784\u4fe1\u606f\uff0c\u5305\u62ec\u5217\u540d\u3001\u6570\u636e\u7c7b\u578b\u3001\u957f\u5ea6\u3001\u7ea6\u675f\u548c\u9ed8\u8ba4\u503c\u3002 \u7528\u6cd5\uff1a DESC table_name; \u767b\u5f55\u540e\u590d\u5236 2. INFORMATION_SCHEMA \u8868 INFORMATION_SCHEMA \u6570\u636e\u5e93\u5305\u542b\u6709\u5173\u6570\u636e\u5e93\u5bf9\u8c61\uff08\u5305\u62ec\u8868\uff09\u7684\u4fe1\u606f\u3002COLUMNS \u8868\u5b58\u50a8\u6240\u6709\u5217\u7684\u4fe1\u606f\uff0cTABLES \u8868\u5b58\u50a8\u8868\u7ea7\u4fe1\u606f\u3002 \u7528\u6cd5\uff1a SELECT * FROM INFORMATION_SCHEMA.COLUMNS WHERE TABLE_NAME = &#8216;table_name&#8217;; SELECT * FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_NAME = &#8216;table_name&#8217;; \u767b\u5f55\u540e\u590d\u5236 3. [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[16],"tags":[],"class_list":["post-5394","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/5394","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/comments?post=5394"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/5394\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=5394"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=5394"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=5394"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}