以前只用到过update a set a.pwd=b.pwd from a inner join b on a.id=b.id
所以想当然就认为delete from a inner join b on a.id=b.id
就是感觉别扭，gg了一下才知道语法错了
sql server下应该这么写
delete from a from a inner join b on a.id=b.id
而Access中写为
delete from a inner join b on a.id=b.id
update 语句也不同
Access
update a inner join b on a.id=b.id set a.pwd=b.pwd
SQL Server
update a set a.pwd=b.pwd from a inner join b on a.id=b.id