{"id":192312,"date":"2024-11-12T18:42:18","date_gmt":"2024-11-12T10:42:18","guid":{"rendered":"https:\/\/server.hk\/cnblog\/192312\/"},"modified":"2024-11-12T18:42:20","modified_gmt":"2024-11-12T10:42:20","slug":"%e6%95%88%e7%8e%87%e6%8f%90%e5%8d%87%ef%bc%81%e6%95%99%e4%bd%a0%e5%bf%ab%e9%80%9f%e6%89%b9%e9%87%8f%e6%9f%a5%e8%a9%a2mysql%e6%95%b8%e6%93%9a%e5%ba%ab%e8%aa%9e%e5%8f%a5-%e6%89%b9%e9%87%8f%e6%9f%a5","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/192312\/","title":{"rendered":"\u6548\u7387\u63d0\u5347\uff01\u6559\u4f60\u5feb\u901f\u6279\u91cf\u67e5\u8a62MySQL\u6578\u64da\u5eab\u8a9e\u53e5 (\u6279\u91cf\u67e5\u8a62mysql\u6578\u64da\u5eab\u8a9e\u53e5)"},"content":{"rendered":"

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\u70ba\u4ec0\u9ebc\u9700\u8981\u6279\u91cf\u67e5\u8a62\uff1f<\/h2>\n

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SELECT * FROM users WHERE id IN (1, 2, 3, 4, 5);\n<\/code><\/pre>\n
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\u4f7f\u7528JOIN\u9032\u884c\u6279\u91cf\u67e5\u8a62<\/h2>\n
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SELECT u.name, o.order_date \nFROM users u \nJOIN orders o ON u.id = o.user_id \nWHERE u.id IN (1, 2, 3);\n<\/code><\/pre>\n
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\u4f7f\u7528\u5b58\u5132\u904e\u7a0b\u9032\u884c\u6279\u91cf\u67e5\u8a62<\/h2>\n
\u5982\u679c\u60a8\u9700\u8981\u7d93\u5e38\u57f7\u884c\u76f8\u540c\u7684\u6279\u91cf\u67e5\u8a62\uff0c\u53ef\u4ee5\u8003\u616e\u4f7f\u7528\u5b58\u5132\u904e\u7a0b\u3002\u5b58\u5132\u904e\u7a0b\u662f\u4e00\u7d44\u9810\u7de8\u8b6f\u7684SQL\u8a9e\u53e5\uff0c\u53ef\u4ee5\u91cd\u8907\u57f7\u884c\u3002\u4ee5\u4e0b\u662f\u5275\u5efa\u5b58\u5132\u904e\u7a0b\u7684\u793a\u4f8b\uff1a<\/p>\n
DELIMITER \/\/\nCREATE PROCEDURE GetUserOrders(IN userIds VARCHAR(255))\nBEGIN\n    SET @sql = CONCAT('SELECT u.name, o.order_date \n                       FROM users u \n                       JOIN orders o ON u.id = o.user_id \n                       WHERE u.id IN (', userIds, ')');\n    PREPARE stmt FROM @sql;\n    EXECUTE stmt;\n    DEALLOCATE PREPARE stmt;\nEND \/\/\nDELIMITER ;\n<\/code><\/pre>\n
\u5728\u9019\u500b\u4f8b\u5b50\u4e2d\uff0c\u6211\u5011\u5275\u5efa\u4e86\u4e00\u500b\u540d\u70baGetUserOrders\u7684\u5b58\u5132\u904e\u7a0b\uff0c\u63a5\u53d7\u4e00\u500b\u7528\u6236ID\u7684\u5b57\u7b26\u4e32\uff0c\u4e26\u57f7\u884c\u76f8\u61c9\u7684\u67e5\u8a62\u3002\u9019\u6a23\u53ef\u4ee5\u5927\u5927\u7c21\u5316\u67e5\u8a62\u7684\u904e\u7a0b\u3002<\/p>\n
\u4f7f\u7528\u6279\u91cf\u63d2\u5165\u63d0\u9ad8\u6548\u7387<\/h2>\n
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INSERT INTO users (name, email) VALUES \n('Alice', 'alice@example.com'), \n('Bob', 'bob@example.com'), \n('Charlie', 'charlie@example.com');\n<\/code><\/pre>\n
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\u7e3d\u7d50<\/h2>\n
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