dscdttg4389 2015-12-31 18:31
浏览 37
已采纳

使用PHP distinct从mysql中获取所有唯一数据

I am stuck on fetching unique data from MySql Database by PHP Distinct. I want to fetch all the data from the table but in a particular field 'ccTitle' should remove duplicate entries. My Query is as follows-

"SELECT DISTINCT(*) FROM conferencecreate WHERE ccFlag = 1 AND ccStartingDate >= '$nowTime'"

But it's not working. I discovered Distinct is working individually for a field. Is there another to solve this issue?

Let me know please.

TQ

  • 写回答

3条回答 默认 最新

  • dongtou2097 2015-12-31 20:06
    关注

    You are looking for this query:

    SELECT *
    TABLE table
    GROUP BY column
    

    You can write this query with DISTINCT statement like that:

    SELECT DISTINCT ON column *
    FROM table
    
    本回答被题主选为最佳回答 , 对您是否有帮助呢?
    评论
查看更多回答(2条)

报告相同问题?

悬赏问题

  • ¥15 做个有关计算的小程序
  • ¥15 MPI读取tif文件无法正常给各进程分配路径
  • ¥15 如何用MATLAB实现以下三个公式(有相互嵌套)
  • ¥30 关于#算法#的问题:运用EViews第九版本进行一系列计量经济学的时间数列数据回归分析预测问题 求各位帮我解答一下
  • ¥15 setInterval 页面闪烁,怎么解决
  • ¥15 如何让企业微信机器人实现消息汇总整合
  • ¥50 关于#ui#的问题:做yolov8的ui界面出现的问题
  • ¥15 如何用Python爬取各高校教师公开的教育和工作经历
  • ¥15 TLE9879QXA40 电机驱动
  • ¥20 对于工程问题的非线性数学模型进行线性化