sql 替换部分位置的字符串

记录测试演示数据库关键数据修改替换关键字

SELECT STUFF(idcard, LEN(idcard) -3, 4,'XXXX') from stinfo 

update stinfo set idcard = STUFF(idcard, LEN(idcard) -3, 4,'XXXX') 
update stinfo set hostelphone=STUFF(hostelphone, LEN(hostelphone) -3, 4,'XXXX') 
update stinfo set phoneno=STUFF(phoneno, LEN(phoneno) -3, 4,'XXXX') 
update stinfo set jhrsfz1=STUFF(jhrsfz1, LEN(jhrsfz1) -3, 4,'XXXX') 
update stinfo set jhrsfz2=STUFF(jhrsfz2, LEN(jhrsfz2) -3, 4,'XXXX') 
update stinfo set lxPhone=STUFF(lxPhone, LEN(lxPhone) -3, 4,'XXXX') 
update stinfo set jhrmc1=STUFF(jhrmc1, LEN(jhrmc1), 1,'X') 
update stinfo set jhrmc2=STUFF(jhrmc2, LEN(jhrmc2), 1,'X') 
update stinfo set name=STUFF(name, LEN(name), 1,'X') 

update teacher set name = STUFF(name, LEN(name), 1,'X')