我在mysql查询中连接字符串时遇到问题。下面是我的问题:
SELECT *, CONCAT(nombre,' ',apellido) AS fullname FROM user WHERE nombre LIKE '%$busqueda%'busqueda%' OR about LIKE '%$busqueda%' OR place LIKE '%$busqueda%' or fullname LIKE '%$busque
mysql_query("UPDATE users SET friends = CONCAT(friends,"$friend_id") WHERE username = '$user_logged_in'") or die mysql_error());mysql_query("UPDATE users SET friends = friends +" . ", " .
我有一个在sqlfiddle中工作的枢轴表代码,当我在phpmyadmin中将它带回我的数据库时,我似乎无法让查询正常工作。当我在我的localHost phpmyadmin中运行它时,查询如下所示:
SET @@group_concat_max_len = 5000;# MySQL returned an empty resultSET @sql = NULL;# MySQL returned an empty result set (i.e. zero rows).
我有这样的代码: SELECT id as tc_id, firstname, surname, position, @concat := CONCAT(firstname,' ',surname) WHERE (@concat LIKE '%". mysql_real_escape_string($_REQUEST['search_term当我在sequel pro本地运行SEL