select replace(classroomname,'呼市25中','內蒙古經貿學校'),*
from fdzexamclassroom where fdzid='15002' and exampihao like '201807%'
order by classroomname
replace(1,2,3)
1是要查哪個字段。
2是要原來的字符串
3是新的字符串
上面語句:
查找classroomname字段,把這個字段的字符串"呼市25中"替換成"內蒙古經貿學校"。