在MySQL中,是否可以添加WHERE条件,但前提是前面的条件不返回结果,而不触发两个连续的查询?| RON | Romanian New Lei |考虑以下查询* FROM Currencies WHERE (CurrencyCode LIKE '%RO%' OR CurrencyName LIKE '%R
可能重复:
$numUsersSameRatingQuery="SELECT * `user ratings` WHERE category='$category' AND categoryId='$categoryId' AND `userAromaRating`>0 ";
$numResults=mysql_
我有一个mssql查询,我想把它转换成mySql,在转换之后,查询仍然不能工作。0 #the event has already passed这里是我转换的查询`date_end`, NOW()) ELSE 0 ) AS `days_remaining` FROM `bookings` AS `bt` LIMIT 0, 25