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mysql输出json字符串

Posted on 2008-07-24   |   In mysql

假如有一个表users中有二个字段username和email,可以用以下语句获取一个json字符串。

SELECT     CONCAT("[",          GROUP_CONCAT(               CONCAT("{username:'",username,"'"),               CONCAT(",email:'",email),"'}")          )     ,"]")AS json FROM users;
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