由于错误,我在mysql中插入了一些包含重复项的行,但这些重复项无法识别,因为它们包含brak空格 | 2 | Apple{b}| //the {b} is just to show the cell actually contains a break space
因此,当我尝试删除重复项时,它们不会被识别为重复项...当我尝试只删除分隔符时,我得到一个错误,因为n
mysql> select count(id) total from applicants;| total || 0 |1 rowin set (0.00 sec)
+-------++-------+1 row in set (0.00 sec)
mysql> select count(id) tota