{"id":810,"date":"2025-01-11T00:28:45","date_gmt":"2025-01-10T16:28:45","guid":{"rendered":"https:\/\/www.laixuexila.com\/?p=810"},"modified":"2025-01-11T00:28:45","modified_gmt":"2025-01-10T16:28:45","slug":"%e5%a6%82%e4%bd%95%e4%bf%ae%e5%a4%8d-mysql-%e4%b8%ad%e7%9a%84%e6%8e%92%e5%ba%8f%e8%a7%84%e5%88%99%e9%94%99%e8%af%af%ef%bc%8c%e5%b9%b6%e7%a1%ae%e4%bf%9d%e6%95%b0%e6%8d%ae%e6%ad%a3%e7%a1%ae%e6%8e%92","status":"publish","type":"post","link":"https:\/\/www.laixuexila.com\/index.php\/2025\/01\/11\/%e5%a6%82%e4%bd%95%e4%bf%ae%e5%a4%8d-mysql-%e4%b8%ad%e7%9a%84%e6%8e%92%e5%ba%8f%e8%a7%84%e5%88%99%e9%94%99%e8%af%af%ef%bc%8c%e5%b9%b6%e7%a1%ae%e4%bf%9d%e6%95%b0%e6%8d%ae%e6%ad%a3%e7%a1%ae%e6%8e%92\/","title":{"rendered":"\u5982\u4f55\u4fee\u590d MySQL \u4e2d\u7684\u6392\u5e8f\u89c4\u5219\u9519\u8bef\uff0c\u5e76\u786e\u4fdd\u6570\u636e\u6b63\u786e\u6392\u5e8f\u548c\u6bd4\u8f83"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">\u4fee\u590d MySQL \u6570\u636e\u5e93\u4e2d\u7684\u6392\u5e8f\u89c4\u5219\u9519\u8bef\uff0c\u901a\u5e38\u662f\u56e0\u4e3a\u6570\u636e\u5e93\u3001\u8868\u6216\u5217\u7684\u6392\u5e8f\u89c4\u5219\uff08collation\uff09\u4e0e\u5b9e\u9645\u7684\u6570\u636e\u7c7b\u578b\u6216\u5e94\u7528\u9700\u6c42\u4e0d\u5339\u914d\u3002\u8fd9\u79cd\u4e0d\u5339\u914d\u53ef\u80fd\u5bfc\u81f4\u5b57\u7b26\u6bd4\u8f83\u3001\u6392\u5e8f\u7b49\u64cd\u4f5c\u51fa\u73b0\u610f\u5916\u884c\u4e3a\uff0c\u6216\u8005\u5bfc\u81f4\u5b57\u7b26\u663e\u793a\u95ee\u9898\uff08\u5982\u4e71\u7801\uff09\u3002\u6392\u5e8f\u89c4\u5219\u9519\u8bef\u901a\u5e38\u8868\u73b0\u4e3a\u6570\u636e\u63d2\u5165\u6216\u67e5\u8be2\u65f6\u5b57\u7b26\u6392\u5e8f\u4e0d\u6b63\u786e\uff0c\u6216\u8005\u5728\u4e0d\u540c\u8bed\u8a00\u73af\u5883\u4e0b\u7684\u67e5\u8be2\u7ed3\u679c\u4e0d\u7b26\u5408\u9884\u671f\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e3a\u4e86\u4fee\u590d\u6392\u5e8f\u89c4\u5219\u9519\u8bef\uff0c\u53ef\u4ee5\u6309\u7167\u4ee5\u4e0b\u6b65\u9aa4\u64cd\u4f5c\uff1a<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">1. <strong>\u68c0\u67e5\u6570\u636e\u5e93\u3001\u8868\u548c\u5217\u7684\u5f53\u524d\u6392\u5e8f\u89c4\u5219<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u9996\u5148\uff0c\u60a8\u9700\u8981\u67e5\u770b\u6570\u636e\u5e93\u3001\u8868\u548c\u5217\u5f53\u524d\u7684\u6392\u5e8f\u89c4\u5219\uff0c\u4ee5\u4fbf\u786e\u5b9a\u95ee\u9898\u6240\u5728\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">1.1 \u67e5\u770b\u5f53\u524d\u6570\u636e\u5e93\u7684\u6392\u5e8f\u89c4\u5219<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">\u53ef\u4ee5\u901a\u8fc7\u4ee5\u4e0b SQL \u67e5\u8be2\u6765\u67e5\u770b\u5f53\u524d\u6570\u636e\u5e93\u7684\u6392\u5e8f\u89c4\u5219\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>SELECT DEFAULT_COLLATION_NAME \nFROM information_schema.SCHEMATA \nWHERE SCHEMA_NAME = 'your_database_name';<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u8fd9\u5c06\u8fd4\u56de\u6307\u5b9a\u6570\u636e\u5e93\u7684\u9ed8\u8ba4\u6392\u5e8f\u89c4\u5219\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">1.2 \u67e5\u770b\u5f53\u524d\u8868\u7684\u6392\u5e8f\u89c4\u5219<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">\u67e5\u770b\u67d0\u4e2a\u8868\u7684\u6392\u5e8f\u89c4\u5219\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>SHOW TABLE STATUS WHERE Name = 'your_table_name';<\/code><\/pre>\n\n\n\n<h4 class=\"wp-block-heading\">1.3 \u67e5\u770b\u67d0\u4e2a\u5217\u7684\u6392\u5e8f\u89c4\u5219<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">\u5982\u679c\u60a8\u60f3\u67e5\u770b\u67d0\u4e2a\u7279\u5b9a\u5217\u7684\u6392\u5e8f\u89c4\u5219\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>SHOW FULL COLUMNS FROM your_table_name;<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u8be5\u547d\u4ee4\u5c06\u663e\u793a\u6bcf\u5217\u7684\u8be6\u7ec6\u4fe1\u606f\uff0c\u5305\u62ec\u5176\u5b57\u7b26\u96c6\u548c\u6392\u5e8f\u89c4\u5219\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">2. <strong>\u66f4\u6539\u6570\u636e\u5e93\u7684\u6392\u5e8f\u89c4\u5219<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u5982\u679c\u6570\u636e\u5e93\u7684\u9ed8\u8ba4\u6392\u5e8f\u89c4\u5219\u4e0d\u6b63\u786e\uff0c\u60a8\u53ef\u4ee5\u901a\u8fc7 <code>ALTER DATABASE<\/code> \u547d\u4ee4\u66f4\u6539\u5b83\u3002\u4ee5\u4e0b\u547d\u4ee4\u5c06\u66f4\u6539\u6570\u636e\u5e93\u7684\u9ed8\u8ba4\u6392\u5e8f\u89c4\u5219\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>ALTER DATABASE your_database_name\n    COLLATE utf8mb4_unicode_ci;<\/code><\/pre>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>utf8mb4_unicode_ci<\/code> \u662f\u4e00\u79cd\u5e38\u7528\u7684 Unicode \u6392\u5e8f\u89c4\u5219\uff0c\u652f\u6301\u591a\u8bed\u8a00\u5b57\u7b26\u7684\u6392\u5e8f\u3002<\/li>\n\n\n\n<li><code>utf8mb4_general_ci<\/code> \u662f\u53e6\u4e00\u79cd\u5e38\u7528\u7684 Unicode \u6392\u5e8f\u89c4\u5219\uff0c\u4f46\u76f8\u8f83\u4e8e <code>utf8mb4_unicode_ci<\/code>\uff0c\u5b83\u7684\u6392\u5e8f\u89c4\u5219\u8f83\u4e3a\u7b80\u5355\uff0c\u53ef\u80fd\u4f1a\u4e0d\u90a3\u4e48\u7cbe\u786e\u3002<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u66f4\u6539\u6570\u636e\u5e93\u7684\u6392\u5e8f\u89c4\u5219\u540e\uff0c\u6240\u6709\u65b0\u521b\u5efa\u7684\u8868\u5c06\u4f1a\u4f7f\u7528\u65b0\u7684\u6392\u5e8f\u89c4\u5219\uff0c\u4f46\u73b0\u6709\u8868\u7684\u6392\u5e8f\u89c4\u5219\u4e0d\u4f1a\u81ea\u52a8\u66f4\u6539\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">3. <strong>\u66f4\u6539\u8868\u7684\u6392\u5e8f\u89c4\u5219<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u5982\u679c\u53ea\u662f\u67d0\u4e9b\u8868\u7684\u6392\u5e8f\u89c4\u5219\u4e0d\u5339\u914d\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u66f4\u6539\u6574\u4e2a\u8868\u7684\u6392\u5e8f\u89c4\u5219\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>ALTER TABLE your_table_name\n    CONVERT TO CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u8fd9\u5c06\u4fee\u6539\u8868\u4e2d\u7684\u6240\u6709\u5b57\u7b26\u5217\u7684\u5b57\u7b26\u96c6\u548c\u6392\u5e8f\u89c4\u5219\uff0c\u786e\u4fdd\u8868\u5185\u7684\u6240\u6709\u6570\u636e\u90fd\u4f7f\u7528\u4e00\u81f4\u7684\u6392\u5e8f\u89c4\u5219\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">4. <strong>\u66f4\u6539\u5217\u7684\u6392\u5e8f\u89c4\u5219<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u5982\u679c\u53ea\u662f\u67d0\u4e2a\u7279\u5b9a\u5217\u7684\u6392\u5e8f\u89c4\u5219\u4e0d\u5339\u914d\uff0c\u60a8\u53ef\u4ee5\u901a\u8fc7 <code>ALTER TABLE<\/code> \u547d\u4ee4\u5355\u72ec\u66f4\u6539\u8be5\u5217\u7684\u6392\u5e8f\u89c4\u5219\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>ALTER TABLE your_table_name\n    MODIFY COLUMN your_column_name VARCHAR(255)\n    CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u8fd9\u5c06\u4fee\u6539\u6307\u5b9a\u5217\u7684\u5b57\u7b26\u96c6\u548c\u6392\u5e8f\u89c4\u5219\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">5. <strong>\u6279\u91cf\u4fee\u6539\u591a\u4e2a\u8868\u6216\u5217\u7684\u6392\u5e8f\u89c4\u5219<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u5982\u679c\u6570\u636e\u5e93\u4e2d\u6709\u591a\u4e2a\u8868\u548c\u5217\u9700\u8981\u4fee\u6539\uff0c\u53ef\u4ee5\u7f16\u5199 SQL \u811a\u672c\u6279\u91cf\u66f4\u65b0\u8fd9\u4e9b\u8868\u548c\u5217\u7684\u5b57\u7b26\u96c6\u548c\u6392\u5e8f\u89c4\u5219\u3002\u9996\u5148\uff0c\u60a8\u53ef\u4ee5\u67e5\u8be2\u6240\u6709\u8868\u548c\u5217\u7684\u5b57\u7b26\u96c6\u548c\u6392\u5e8f\u89c4\u5219\uff0c\u7136\u540e\u751f\u6210\u76f8\u5e94\u7684 <code>ALTER<\/code> \u8bed\u53e5\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">\u67e5\u8be2\u6240\u6709\u8868\u7684\u5b57\u7b26\u96c6\u548c\u6392\u5e8f\u89c4\u5219\uff1a<\/h4>\n\n\n\n<pre class=\"wp-block-code\"><code>SELECT TABLE_NAME, CCSA.character_set_name AS character_set_name, CCSA.collation_name\nFROM information_schema.tables T, information_schema.collation_character_set_applicability CCSA\nWHERE CCSA.collation_name = T.table_collation\n  AND T.table_schema = 'your_database_name';<\/code><\/pre>\n\n\n\n<h4 class=\"wp-block-heading\">\u67e5\u8be2\u6240\u6709\u5217\u7684\u5b57\u7b26\u96c6\u548c\u6392\u5e8f\u89c4\u5219\uff1a<\/h4>\n\n\n\n<pre class=\"wp-block-code\"><code>SELECT TABLE_NAME, COLUMN_NAME, CHARACTER_SET_NAME, COLLATION_NAME\nFROM information_schema.columns\nWHERE TABLE_SCHEMA = 'your_database_name'\n  AND CHARACTER_SET_NAME IS NOT NULL;<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u60a8\u53ef\u4ee5\u57fa\u4e8e\u8fd9\u4e9b\u67e5\u8be2\u7ed3\u679c\uff0c\u751f\u6210\u4e00\u6279 <code>ALTER<\/code> \u8bed\u53e5\u6765\u6279\u91cf\u66f4\u65b0\u6240\u6709\u76f8\u5173\u8868\u548c\u5217\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">6. <strong>\u4fee\u590d\u4e71\u7801\u6570\u636e<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u5982\u679c\u60a8\u9047\u5230\u6570\u636e\u4e71\u7801\u95ee\u9898\uff0c\u53ef\u80fd\u662f\u7531\u4e8e\u5b57\u7b26\u96c6\u548c\u6392\u5e8f\u89c4\u5219\u4e0d\u5339\u914d\u5bfc\u81f4\u7684\u3002\u5728\u8fd9\u79cd\u60c5\u51b5\u4e0b\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528 <code>CONVERT()<\/code> \u51fd\u6570\u5c06\u4e71\u7801\u6570\u636e\u4ece\u4e00\u4e2a\u5b57\u7b26\u96c6\u8f6c\u6362\u5230\u53e6\u4e00\u4e2a\u5b57\u7b26\u96c6\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4f8b\u5982\uff0c\u5047\u8bbe\u6570\u636e\u8868\u7684\u5b57\u7b26\u96c6\u548c\u6392\u5e8f\u89c4\u5219\u8bbe\u7f6e\u4e0d\u6b63\u786e\uff0c\u5bfc\u81f4\u67d0\u4e9b\u6570\u636e\u53d8\u6210\u4e71\u7801\uff0c\u53ef\u4ee5\u901a\u8fc7\u4ee5\u4e0b\u65b9\u5f0f\u4fee\u590d\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>UPDATE your_table_name\nSET your_column_name = CONVERT(your_column_name USING utf8mb4)\nWHERE your_column_name LIKE '%\u4e71\u7801%';<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">7. <strong>\u786e\u4fdd\u6570\u636e\u5e93\u8fde\u63a5\u4f7f\u7528\u6b63\u786e\u7684\u5b57\u7b26\u96c6<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u6570\u636e\u5e93\u8fde\u63a5\u65f6\u4f7f\u7528\u7684\u5b57\u7b26\u96c6\u548c\u6392\u5e8f\u89c4\u5219\u53ef\u80fd\u4e0e\u6570\u636e\u5e93\u7684\u9ed8\u8ba4\u8bbe\u7f6e\u4e0d\u4e00\u81f4\uff0c\u5bfc\u81f4\u5b57\u7b26\u63d2\u5165\u65f6\u51fa\u73b0\u95ee\u9898\u3002\u4e3a\u4e86\u786e\u4fdd\u8fde\u63a5\u4f7f\u7528\u6b63\u786e\u7684\u5b57\u7b26\u96c6\uff0c\u60a8\u53ef\u4ee5\u5728\u6570\u636e\u5e93\u8fde\u63a5\u65f6\u6307\u5b9a\u5b57\u7b26\u96c6\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4f8b\u5982\uff0c\u5728 MySQL \u5ba2\u6237\u7aef\u4e2d\uff0c\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u8bbe\u7f6e\u5b57\u7b26\u96c6\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>SET NAMES 'utf8mb4';<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u5728\u4e00\u4e9b\u7f16\u7a0b\u8bed\u8a00\u4e2d\uff08\u4f8b\u5982 PHP\u3001Java\u3001Python\uff09\uff0c\u60a8\u53ef\u4ee5\u901a\u8fc7\u76f8\u5e94\u7684\u914d\u7f6e\u6765\u786e\u4fdd\u6570\u636e\u5e93\u8fde\u63a5\u4f7f\u7528\u6b63\u786e\u7684\u5b57\u7b26\u96c6\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">\u5728 PHP \u4e2d\uff1a<\/h4>\n\n\n\n<pre class=\"wp-block-code\"><code>mysqli_set_charset($connection, 'utf8mb4');<\/code><\/pre>\n\n\n\n<h4 class=\"wp-block-heading\">\u5728 Java \u4e2d\uff1a<\/h4>\n\n\n\n<pre class=\"wp-block-code\"><code>String url = \"jdbc:mysql:\/\/localhost:3306\/your_database?useUnicode=true&amp;characterEncoding=utf8mb4\";\nConnection conn = DriverManager.getConnection(url, \"username\", \"password\");<\/code><\/pre>\n\n\n\n<h4 class=\"wp-block-heading\">\u5728 Python \u4e2d\uff1a<\/h4>\n\n\n\n<pre class=\"wp-block-code\"><code>import mysql.connector\n\nconn = mysql.connector.connect(\n    host='localhost',\n    database='your_database',\n    user='root',\n    password='password',\n    charset='utf8mb4'\n)<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">8. <strong>\u4fee\u6539 MySQL \u914d\u7f6e\u6587\u4ef6\uff08\u53ef\u9009\uff09<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u5982\u679c\u60a8\u7684\u670d\u52a1\u5668\u5728\u591a\u4e2a\u6570\u636e\u5e93\u4e4b\u95f4\u5171\u4eab\u76f8\u540c\u7684\u5b57\u7b26\u96c6\u548c\u6392\u5e8f\u89c4\u5219\uff0c\u53ef\u4ee5\u901a\u8fc7\u4fee\u6539 MySQL \u7684\u914d\u7f6e\u6587\u4ef6\uff08\u5982 <code>my.cnf<\/code> \u6216 <code>my.ini<\/code>\uff09\u6765\u6307\u5b9a\u5168\u5c40\u9ed8\u8ba4\u5b57\u7b26\u96c6\u548c\u6392\u5e8f\u89c4\u5219\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5728 <code>[mysqld]<\/code> \u548c <code>[client]<\/code> \u90e8\u5206\u6dfb\u52a0\u4ee5\u4e0b\u914d\u7f6e\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>&#91;mysqld]\ncharacter-set-server = utf8mb4\ncollation-server = utf8mb4_unicode_ci<\/code><\/pre>\n\n\n<p>[client]<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">default-character-set = utf8mb4<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4fee\u6539\u914d\u7f6e\u6587\u4ef6\u540e\uff0c\u91cd\u65b0\u542f\u52a8 MySQL \u670d\u52a1\u4f7f\u66f4\u6539\u751f\u6548\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">9. <strong>\u5907\u4efd\u4e0e\u6062\u590d<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u5728\u8fdb\u884c\u5927\u89c4\u6a21\u7684\u5b57\u7b26\u96c6\u548c\u6392\u5e8f\u89c4\u5219\u4fee\u6539\u65f6\uff0c\u5f3a\u70c8\u5efa\u8bae\u60a8\u5148\u5907\u4efd\u6570\u636e\u5e93\uff0c\u4ee5\u9632\u6b62\u6570\u636e\u4e22\u5931\u6216\u4e0d\u4e00\u81f4\u3002\u53ef\u4ee5\u4f7f\u7528 MySQL \u7684 <code>mysqldump<\/code> \u5de5\u5177\u8fdb\u884c\u5907\u4efd\uff0c\u5e76\u5728\u9700\u8981\u65f6\u6062\u590d\u6570\u636e\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">\u5907\u4efd\uff1a<\/h4>\n\n\n\n<pre class=\"wp-block-code\"><code>mysqldump -u username -p your_database_name &gt; backup.sql<\/code><\/pre>\n\n\n\n<h4 class=\"wp-block-heading\">\u6062\u590d\uff1a<\/h4>\n\n\n\n<pre class=\"wp-block-code\"><code>mysql -u username -p your_database_name &lt; backup.sql<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<h3 class=\"wp-block-heading\">10. <strong>\u4f7f\u7528 <code>utf8mb4<\/code> \u8fdb\u884c\u8de8\u8bed\u8a00\u652f\u6301<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u5bf9\u4e8e\u591a\u8bed\u8a00\u652f\u6301\u7684\u5e94\u7528\u7a0b\u5e8f\uff0c\u786e\u4fdd\u9009\u62e9 <code>utf8mb4<\/code> \u800c\u975e <code>utf8<\/code> \u662f\u975e\u5e38\u91cd\u8981\u7684\u3002<code>utf8mb4<\/code> \u662f MySQL \u4e2d\u5b8c\u6574\u652f\u6301 Unicode \u7684\u5b57\u7b26\u96c6\uff0c\u80fd\u591f\u5b58\u50a8\u6240\u6709 Unicode \u5b57\u7b26\uff0c\u5305\u62ec\u8868\u60c5\u7b26\u53f7\u548c\u4e00\u4e9b\u7279\u6b8a\u5b57\u7b26\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u4e3a\u4ec0\u4e48\u9700\u8981 <code>utf8mb4<\/code>\uff1f<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>utf8<\/code> \u5b57\u7b26\u96c6\u5e76\u6ca1\u6709\u5b8c\u5168\u652f\u6301\u6240\u6709 Unicode \u5b57\u7b26\uff0c\u53ea\u652f\u6301\u6700\u591a\u4e09\u4e2a\u5b57\u8282\u7684\u5b57\u7b26\u3002<\/li>\n\n\n\n<li><code>utf8mb4<\/code> \u53ef\u4ee5\u652f\u6301\u6240\u6709 Unicode \u5b57\u7b26\uff0c\u5305\u62ec\u56db\u5b57\u8282\u5b57\u7b26\uff08\u5982 emoji \u8868\u60c5\u3001\u5404\u79cd\u7279\u6b8a\u7b26\u53f7\u7b49\uff09\u3002<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">11. <strong>\u66f4\u6539\u8fde\u63a5\u5b57\u7b26\u96c6<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u6570\u636e\u5e93\u5ba2\u6237\u7aef\u5728\u8fde\u63a5\u65f6\u4f7f\u7528\u7684\u5b57\u7b26\u96c6\u4e5f\u53ef\u80fd\u5bfc\u81f4\u5b57\u7b26\u663e\u793a\u95ee\u9898\u3002\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0cMySQL \u5ba2\u6237\u7aef\u8fde\u63a5\u65f6\u4f7f\u7528 <code>latin1<\/code> \u5b57\u7b26\u96c6\uff0c\u8fd9\u53ef\u80fd\u4f1a\u5bfc\u81f4\u5b57\u7b26\u4e22\u5931\u6216\u4e71\u7801\u3002\u786e\u4fdd\u5ba2\u6237\u7aef\u8fde\u63a5\u65f6\u4f7f\u7528 <code>utf8mb4<\/code> \u5b57\u7b26\u96c6\uff0c\u4ee5\u907f\u514d\u4e71\u7801\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u8bbe\u7f6e\u8fde\u63a5\u5b57\u7b26\u96c6\uff1a<\/strong><\/p>\n\n\n\n<h4 class=\"wp-block-heading\">\u5728 MySQL \u5ba2\u6237\u7aef\u4e2d\uff1a<\/h4>\n\n\n\n<pre class=\"wp-block-code\"><code>SET NAMES 'utf8mb4';<\/code><\/pre>\n\n\n\n<h4 class=\"wp-block-heading\">\u5728 Java \u4e2d\u4f7f\u7528 JDBC\uff1a<\/h4>\n\n\n\n<pre class=\"wp-block-code\"><code>String url = \"jdbc:mysql:\/\/localhost:3306\/your_database?useUnicode=true&amp;characterEncoding=utf8mb4\";\nConnection conn = DriverManager.getConnection(url, \"username\", \"password\");<\/code><\/pre>\n\n\n\n<h4 class=\"wp-block-heading\">\u5728 PHP \u4e2d\uff1a<\/h4>\n\n\n\n<pre class=\"wp-block-code\"><code>mysqli_set_charset($connection, 'utf8mb4');<\/code><\/pre>\n\n\n\n<h4 class=\"wp-block-heading\">\u5728 Python \u4e2d\uff1a<\/h4>\n\n\n\n<pre class=\"wp-block-code\"><code>import mysql.connector\n\nconn = mysql.connector.connect(\n    host='localhost',\n    database='your_database',\n    user='root',\n    password='password',\n    charset='utf8mb4'\n)<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">12. <strong>\u4fee\u590d\u5b57\u7b26\u96c6\u4e0d\u4e00\u81f4\u5bfc\u81f4\u7684\u4e71\u7801<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u5982\u679c\u7531\u4e8e\u5b57\u7b26\u96c6\u4e0d\u4e00\u81f4\u5bfc\u81f4\u4e86\u6570\u636e\u4e71\u7801\uff08\u4f8b\u5982\uff0c\u7531\u4e8e\u5ba2\u6237\u7aef\u5b57\u7b26\u96c6\u4e0e\u6570\u636e\u5e93\u5b57\u7b26\u96c6\u4e0d\u4e00\u81f4\uff09\uff0c\u4f60\u53ef\u80fd\u9700\u8981\u4fee\u590d\u8fd9\u4e9b\u4e71\u7801\u6570\u636e\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u53ef\u4ee5\u4f7f\u7528 MySQL \u7684 <code>CONVERT()<\/code> \u51fd\u6570\u5c06\u4e71\u7801\u7684\u6570\u636e\u8f6c\u6362\u4e3a\u6b63\u786e\u7684\u5b57\u7b26\u96c6\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">\u793a\u4f8b\uff1a<\/h4>\n\n\n\n<pre class=\"wp-block-code\"><code>UPDATE your_table_name\nSET your_column_name = CONVERT(your_column_name USING utf8mb4)\nWHERE your_column_name LIKE '%\u4e71\u7801%';<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u8fd9\u79cd\u65b9\u6cd5\u6709\u52a9\u4e8e\u4fee\u590d\u5df2\u7ecf\u63d2\u5165\u5230\u6570\u636e\u5e93\u4e2d\u7684\u4e71\u7801\u6570\u636e\uff0c\u7279\u522b\u662f\u5728\u6570\u636e\u63d2\u5165\u65f6\u4f7f\u7528\u4e86\u9519\u8bef\u7684\u5b57\u7b26\u96c6\u6216\u6392\u5e8f\u89c4\u5219\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">13. <strong>\u4f7f\u7528 <code>BINARY<\/code> \u7c7b\u578b\u8fdb\u884c\u7cbe\u786e\u6392\u5e8f<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u5728\u67d0\u4e9b\u60c5\u51b5\u4e0b\uff0c\u60a8\u53ef\u80fd\u9700\u8981\u907f\u514d\u5b57\u7b26\u96c6\u6392\u5e8f\u89c4\u5219\uff08collation\uff09\u5bf9\u67e5\u8be2\u7ed3\u679c\u7684\u5f71\u54cd\uff0c\u7279\u522b\u662f\u5bf9\u4e8e\u654f\u611f\u7684\u6392\u5e8f\u64cd\u4f5c\u6216\u4e8c\u8fdb\u5236\u6570\u636e\u5904\u7406\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5728 MySQL \u4e2d\uff0c<code>BINARY<\/code> \u6570\u636e\u7c7b\u578b\u80fd\u591f\u6309\u7167\u5b57\u8282\u503c\u8fdb\u884c\u6392\u5e8f\uff0c\u5ffd\u7565\u5b57\u7b26\u96c6\u548c\u6392\u5e8f\u89c4\u5219\u3002\u8fd9\u6837\u53ef\u4ee5\u786e\u4fdd\u7cbe\u786e\u7684\u6392\u5e8f\u548c\u6bd4\u8f83\uff0c\u5c24\u5176\u662f\u5728\u5904\u7406\u4e8c\u8fdb\u5236\u6570\u636e\u6216\u9700\u8981\u539f\u59cb\u5b57\u8282\u6392\u5e8f\u65f6\u975e\u5e38\u6709\u7528\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">\u793a\u4f8b\uff1a<\/h4>\n\n\n\n<pre class=\"wp-block-code\"><code>SELECT * FROM your_table_name\nWHERE BINARY your_column_name = 'some_value';<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">14. <strong>\u5728\u8868\u4e2d\u4f7f\u7528\u591a\u79cd\u5b57\u7b26\u96c6\uff08\u907f\u514d\u6df7\u7528\u5b57\u7b26\u96c6\uff09<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u5728\u67d0\u4e9b\u60c5\u51b5\u4e0b\uff0c\u8868\u4e2d\u4e0d\u540c\u5217\u4f7f\u7528\u4e0d\u540c\u7684\u5b57\u7b26\u96c6\uff08\u4f8b\u5982\uff0c\u90e8\u5206\u5217\u4f7f\u7528 <code>utf8<\/code>\uff0c\u5176\u4ed6\u5217\u4f7f\u7528 <code>latin1<\/code>\uff09\u53ef\u80fd\u5bfc\u81f4\u5b57\u7b26\u96c6\u51b2\u7a81\u548c\u9519\u8bef\u3002\u4e3a\u4e86\u907f\u514d\u8fd9\u79cd\u60c5\u51b5\uff0c\u5efa\u8bae\u7edf\u4e00\u4f7f\u7528\u76f8\u540c\u7684\u5b57\u7b26\u96c6\uff08\u5982 <code>utf8mb4<\/code>\uff09\u4ee5\u786e\u4fdd\u4e00\u81f4\u6027\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">\u907f\u514d\u5728\u540c\u4e00\u8868\u4e2d\u6df7\u7528\u5b57\u7b26\u96c6\uff1a<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">\u59cb\u7ec8\u786e\u4fdd\u8868\u548c\u5217\u7684\u5b57\u7b26\u96c6\u8bbe\u7f6e\u4e00\u81f4\u3002\u4f8b\u5982\uff0c\u5982\u679c\u8868\u4f7f\u7528 <code>utf8mb4<\/code> \u5b57\u7b26\u96c6\uff0c\u5219\u6240\u6709\u5217\u5e94\u4f7f\u7528\u76f8\u540c\u7684\u5b57\u7b26\u96c6\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>ALTER TABLE your_table_name \n    CONVERT TO CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">15. <strong>\u7ba1\u7406\u5916\u90e8\u5b57\u7b26\u96c6\u8f93\u5165<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u5982\u679c\u4f60\u7684\u5e94\u7528\u7a0b\u5e8f\u5141\u8bb8\u7528\u6237\u8f93\u5165\u591a\u8bed\u8a00\u5b57\u7b26\u6216\u6765\u81ea\u4e0d\u540c\u5b57\u7b26\u96c6\u7684\u6587\u672c\uff08\u5982\u652f\u6301\u8868\u60c5\u7b26\u53f7\u3001\u7279\u6b8a\u5b57\u7b26\u7b49\uff09\uff0c\u5219\u9700\u8981\u5728\u6570\u636e\u8fdb\u5165\u6570\u636e\u5e93\u4e4b\u524d\u786e\u4fdd\u8f93\u5165\u7684\u5b57\u7b26\u96c6\u683c\u5f0f\u6b63\u786e\u3002\u8fd9\u901a\u5e38\u610f\u5473\u7740\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5bf9\u7528\u6237\u8f93\u5165\u8fdb\u884c\u5b57\u7b26\u96c6\u8f6c\u6362\uff0c\u786e\u4fdd\u5176\u7b26\u5408\u6570\u636e\u5e93\u7684\u5b57\u7b26\u96c6\u8981\u6c42\u3002<\/li>\n\n\n\n<li>\u5728\u5904\u7406 API \u6216\u6587\u4ef6\u5bfc\u5165\u65f6\uff0c\u786e\u4fdd\u6b63\u786e\u8bbe\u7f6e\u5b57\u7b26\u96c6\u3002<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\">\u5bf9\u7528\u6237\u8f93\u5165\u7684\u5b57\u7b26\u96c6\u8f6c\u6362\uff1a<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">\u5728\u524d\u7aef\u5e94\u7528\u7a0b\u5e8f\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528 JavaScript \u6216\u5176\u4ed6\u8bed\u8a00\u5c06\u7528\u6237\u8f93\u5165\u7684\u6587\u672c\u8f6c\u6362\u4e3a\u6b63\u786e\u7684\u5b57\u7b26\u96c6\uff0c\u518d\u4f20\u9012\u7ed9\u540e\u7aef\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">16. <strong>\u4f7f\u7528\u89c6\u56fe\uff08Views\uff09\u8fdb\u884c\u5b57\u7b26\u96c6\u8f6c\u6362<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u5982\u679c\u60a8\u9700\u8981\u5728\u67e5\u8be2\u4e2d\u5904\u7406\u4e0d\u540c\u5b57\u7b26\u96c6\u7684\u5217\u6216\u6570\u636e\uff0c\u53ef\u4ee5\u4f7f\u7528\u89c6\u56fe\uff08<code>VIEW<\/code>\uff09\u6765\u9690\u85cf\u590d\u6742\u7684\u5b57\u7b26\u96c6\u8f6c\u6362\u903b\u8f91\u3002\u89c6\u56fe\u53ef\u4ee5\u7528\u6765\u5c06\u4e0d\u540c\u5b57\u7b26\u96c6\u7684\u6570\u636e\u7edf\u4e00\u8f6c\u6362\u4e3a\u76ee\u6807\u5b57\u7b26\u96c6\uff0c\u63d0\u4f9b\u4e00\u81f4\u7684\u67e5\u8be2\u7ed3\u679c\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">\u793a\u4f8b\uff1a<\/h4>\n\n\n\n<pre class=\"wp-block-code\"><code>CREATE VIEW view_name AS\nSELECT CONVERT(column_name USING utf8mb4) AS column_name\nFROM your_table_name;<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u8fd9\u79cd\u65b9\u6cd5\u8ba9\u5e94\u7528\u7a0b\u5e8f\u5728\u67e5\u8be2\u65f6\u65e0\u9700\u5173\u6ce8\u5b57\u7b26\u96c6\u8f6c\u6362\u7684\u7ec6\u8282\uff0c\u800c\u662f\u76f4\u63a5\u64cd\u4f5c\u89c6\u56fe\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">17. <strong>\u907f\u514d\u5728\u8868\u8bbe\u8ba1\u4e2d\u4f7f\u7528\u4e0d\u5fc5\u8981\u7684\u5b57\u7b26\u96c6\u8f6c\u6362<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u8868\u8bbe\u8ba1\u65f6\u5e94\u907f\u514d\u9891\u7e41\u5730\u8fdb\u884c\u5b57\u7b26\u96c6\u8f6c\u6362\u3002\u6bcf\u6b21\u8f6c\u6362\u90fd\u4f1a\u5e26\u6765\u989d\u5916\u7684\u6027\u80fd\u5f00\u9500\uff0c\u56e0\u6b64\u6700\u597d\u9009\u62e9\u5408\u9002\u7684\u5b57\u7b26\u96c6\u5e76\u786e\u4fdd\u5168\u8868\u6216\u5168\u5217\u4f7f\u7528\u7edf\u4e00\u7684\u5b57\u7b26\u96c6\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u793a\u4f8b\uff1a<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u4f7f\u7528 <code>utf8mb4<\/code> \u4f5c\u4e3a\u9ed8\u8ba4\u5b57\u7b26\u96c6\uff0c\u4ee5\u907f\u514d\u540e\u671f\u4fee\u6539\u5b57\u7b26\u96c6\u5e26\u6765\u7684\u9ebb\u70e6\u3002<\/li>\n\n\n\n<li>\u5982\u679c\u8868\u4e2d\u5305\u542b\u5927\u91cf\u6587\u672c\u6570\u636e\uff0c\u9009\u62e9 <code>TEXT<\/code> \u6216 <code>LONGTEXT<\/code> \u7c7b\u578b\uff0c\u5e76\u786e\u4fdd\u5b57\u7b26\u96c6\u8bbe\u7f6e\u4e3a <code>utf8mb4<\/code>\u3002<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">18. <strong>\u4fee\u590d\u548c\u907f\u514d\u6392\u5e8f\u95ee\u9898<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u5982\u679c\u6392\u5e8f\u89c4\u5219\u8bbe\u7f6e\u4e0d\u6b63\u786e\uff0c\u53ef\u80fd\u4f1a\u5bfc\u81f4\u5728\u67e5\u8be2\u65f6\u51fa\u73b0\u4e0d\u7b26\u5408\u9884\u671f\u7684\u6392\u5e8f\u7ed3\u679c\u3002\u4e3a\u4e86\u907f\u514d\u6b64\u7c7b\u95ee\u9898\uff0c\u53ef\u4ee5\u5728\u6570\u636e\u5e93\u3001\u8868\u3001\u5217\u6216\u67e5\u8be2\u7ea7\u522b\u663e\u5f0f\u6307\u5b9a\u6392\u5e8f\u89c4\u5219\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">\u5728\u67e5\u8be2\u4e2d\u663e\u5f0f\u6307\u5b9a\u6392\u5e8f\u89c4\u5219\uff1a<\/h4>\n\n\n\n<pre class=\"wp-block-code\"><code>SELECT * FROM your_table_name \nORDER BY your_column_name COLLATE utf8mb4_unicode_ci;<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u5982\u679c\u67d0\u4e9b\u7279\u5b9a\u7684\u67e5\u8be2\u9700\u8981\u4e0d\u540c\u7684\u6392\u5e8f\u89c4\u5219\uff08\u4f8b\u5982\uff0c\u6309\u5b57\u6bcd\u987a\u5e8f\u6216\u6309\u8bed\u8a00\u6392\u5e8f\uff09\uff0c\u53ef\u4ee5\u5728\u67e5\u8be2\u4e2d\u663e\u5f0f\u6307\u5b9a\u6392\u5e8f\u89c4\u5219\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">19. <strong>\u5b9a\u671f\u68c0\u67e5\u5e76\u7ef4\u62a4\u6570\u636e\u5e93\u7684\u5b57\u7b26\u96c6\u4e00\u81f4\u6027<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e3a\u4e86\u786e\u4fdd\u6570\u636e\u5e93\u7684\u5b57\u7b26\u96c6\u548c\u6392\u5e8f\u89c4\u5219\u5728\u957f\u671f\u4f7f\u7528\u4e2d\u7684\u4e00\u81f4\u6027\uff0c\u5efa\u8bae\u5b9a\u671f\u8fdb\u884c\u6570\u636e\u5e93\u68c0\u67e5\u548c\u7ef4\u62a4\u3002\u901a\u8fc7\u5de5\u5177\u6216\u811a\u672c\u81ea\u52a8\u68c0\u6d4b\u4e0d\u4e00\u81f4\u7684\u5b57\u7b26\u96c6\u8bbe\u7f6e\uff0c\u53ca\u65f6\u8fdb\u884c\u8c03\u6574\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">\u81ea\u52a8\u5316\u68c0\u67e5\uff1a<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">\u60a8\u53ef\u4ee5\u7f16\u5199\u4e00\u4e2a\u811a\u672c\uff0c\u5b9a\u671f\u68c0\u67e5\u8868\u548c\u5217\u7684\u5b57\u7b26\u96c6\u8bbe\u7f6e\uff0c\u5e76\u5c06\u4e0d\u4e00\u81f4\u7684\u90e8\u5206\u4fee\u6539\u4e3a\u7edf\u4e00\u7684\u5b57\u7b26\u96c6\u548c\u6392\u5e8f\u89c4\u5219\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">20. <strong>\u907f\u514d\u4f7f\u7528\u4e0d\u652f\u6301\u591a\u5b57\u8282\u5b57\u7b26\u7684\u5b57\u7b26\u96c6<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u5982\u679c\u60a8\u7684\u5e94\u7528\u7a0b\u5e8f\u652f\u6301\u591a\u8bed\u8a00\u6216\u7279\u6b8a\u5b57\u7b26\uff08\u5982\u8868\u60c5\u7b26\u53f7\uff09\uff0c\u907f\u514d\u4f7f\u7528\u90a3\u4e9b\u53ea\u652f\u6301\u5355\u5b57\u8282\u5b57\u7b26\u7684\u5b57\u7b26\u96c6\uff08\u5982 <code>latin1<\/code> \u6216 <code>ascii<\/code>\uff09\u3002\u8fd9\u4e9b\u5b57\u7b26\u96c6\u65e0\u6cd5\u6b63\u786e\u5904\u7406\u975e ASCII \u5b57\u7b26\uff0c\u5bfc\u81f4\u4e71\u7801\u548c\u663e\u793a\u9519\u8bef\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">21. <strong>\u5b57\u7b26\u96c6\u8fc1\u79fb\u5de5\u5177\u7684\u4f7f\u7528<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u5728\u4e00\u4e9b\u590d\u6742\u7684\u6570\u636e\u5e93\u8fc1\u79fb\u573a\u666f\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528\u4e13\u95e8\u7684\u5de5\u5177\u6765\u5e2e\u52a9\u8fc1\u79fb\u6570\u636e\u5e76\u4fee\u590d\u5b57\u7b26\u96c6\u95ee\u9898\u3002\u4f8b\u5982\uff0c<code>MySQL Workbench<\/code> \u63d0\u4f9b\u4e86\u6570\u636e\u5e93\u8fc1\u79fb\u5de5\u5177\uff0c\u652f\u6301\u81ea\u52a8\u8f6c\u6362\u5b57\u7b26\u96c6\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u603b\u7ed3<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u4fee\u590d MySQL \u4e2d\u7684\u5b57\u7b26\u663e\u793a\u548c\u6392\u5e8f\u89c4\u5219\u95ee\u9898\uff0c\u9664\u4e86\u66f4\u6539\u6570\u636e\u5e93\u3001\u8868\u548c\u5217\u7684\u5b57\u7b26\u96c6\u4e0e\u6392\u5e8f\u89c4\u5219\u4e4b\u5916\uff0c\u8fd8\u9700\u8981\u6ce8\u610f\u4ee5\u4e0b\u51e0\u70b9\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u786e\u4fdd\u4f7f\u7528 <code>utf8mb4<\/code> \u5b57\u7b26\u96c6<\/strong>\uff0c\u4ee5\u652f\u6301\u6240\u6709 Unicode \u5b57\u7b26\u3002<\/li>\n\n\n\n<li><strong>\u786e\u4fdd\u5ba2\u6237\u7aef\u4e0e\u670d\u52a1\u5668\u5b57\u7b26\u96c6\u4e00\u81f4<\/strong>\uff0c\u907f\u514d\u5b57\u7b26\u96c6\u4e0d\u5339\u914d\u5bfc\u81f4\u4e71\u7801\u3002<\/li>\n\n\n\n<li><strong>\u4f7f\u7528 <code>BINARY<\/code> \u6570\u636e\u7c7b\u578b<\/strong>\u6765\u907f\u514d\u5b57\u7b26\u96c6\u6392\u5e8f\u5f71\u54cd\u3002<\/li>\n\n\n\n<li><strong>\u6279\u91cf\u66f4\u65b0\u6570\u636e\u65f6\u4f7f\u7528 <code>CONVERT()<\/code><\/strong> \u4fee\u590d\u4e71\u7801\u6570\u636e\u3002<\/li>\n\n\n\n<li><strong>\u5728\u8868\u4e2d\u4f7f\u7528\u4e00\u81f4\u7684\u5b57\u7b26\u96c6<\/strong>\uff0c\u907f\u514d\u6df7\u7528\u4e0d\u540c\u5b57\u7b26\u96c6\u3002<\/li>\n\n\n\n<li><strong>\u901a\u8fc7\u89c6\u56fe\u8fdb\u884c\u5b57\u7b26\u96c6\u8f6c\u6362<\/strong>\uff0c\u7b80\u5316\u67e5\u8be2\u64cd\u4f5c\u3002<\/li>\n\n\n\n<li><strong>\u5b9a\u671f\u68c0\u67e5\u548c\u7ef4\u62a4\u6570\u636e\u5e93\u7684\u5b57\u7b26\u96c6\u4e00\u81f4\u6027<\/strong>\uff0c\u786e\u4fdd\u957f\u671f\u4f7f\u7528\u4e2d\u7684\u7a33\u5b9a\u6027\u3002<\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">\u901a\u8fc7\u8fd9\u4e9b\u65b9\u6cd5\u548c\u6700\u4f73\u5b9e\u8df5\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u4fee\u590d MySQL \u4e2d\u7684\u5b57\u7b26\u663e\u793a\u95ee\u9898\uff0c\u5e76\u786e\u4fdd\u6570\u636e\u5e93\u80fd\u591f\u7a33\u5b9a\u3001\u6b63\u786e\u5730\u5904\u7406\u591a\u8bed\u8a00\u548c\u7279\u6b8a\u5b57\u7b26\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4fee\u590d MySQL \u6570\u636e\u5e93\u4e2d\u7684\u6392\u5e8f\u89c4\u5219\u9519\u8bef\uff0c\u901a\u5e38\u662f\u56e0\u4e3a\u6570\u636e\u5e93\u3001\u8868\u6216\u5217\u7684\u6392\u5e8f\u89c4\u5219\uff08collation\uff09\u4e0e\u5b9e\u9645\u7684\u6570\u636e [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[35],"tags":[],"class_list":["post-810","post","type-post","status-publish","format-standard","hentry","category-mysql"],"_links":{"self":[{"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/posts\/810","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=810"}],"version-history":[{"count":1,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/posts\/810\/revisions"}],"predecessor-version":[{"id":811,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/posts\/810\/revisions\/811"}],"wp:attachment":[{"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/media?parent=810"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/categories?post=810"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/tags?post=810"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}