Oracle 查询出来的数据取第一条

Oracle 查询出来的数据取第一条

---------------------------------------------------------------------------

转载自：http://www.itpub.net/thread-246442-1-1.html

select * from (select * from <table> order by <key>) where rownum=1;

select * from (select * from <table> order by <key> desc) where rownum=1;

delete from tbl where a='a' and b='b' and c='c';