.*, GROUP_CONCAT(DISTINCT(pc.category_id)) AS post_categories, GROUP_CONCAT(DISTINCT(pt.tag_id)) AS post_tags我将返回一个博客帖子列表,检索:
表中的每一列(用于post映像)、图像表(用于post映像)、中的每一列、所有category_id(用于post)的级联、所有tag_ids(用于post)<code>H 211</代码><代码>G 212</code>的<
我使用以下HTML和PHP代码创建了三个级联下拉列表$quer2=mysql_query("SELECT DISTINCT city_name,city_id FROM city order("SELECT DISTINCT locality_name FROM locality where city_id='$c
我有一个连接4个表的查询。表是用户,user_info,电子邮件和电话。用户可以拥有一个或多个电话和电子邮件。SELECT ur.login_id as loginId, ue.user_email_address as email, up.phone_number as phone LEFT JOIN greydeltadb.gd_user_info uri ON uri.user_id=ur.user_id
INNER JOIN greydeltadb.gd_user_e