오라클 행을 열로

 

 

 

 

 

행을 열로

http://blog.ngelmaum.org/entry/research-note-oracle-story-the-conversion-of-rows-and-columns-in-the-oracle

 

 

top n query 오라클에서

http://blog.ngelmaum.org/entry/research-note-oracle-topn-queries

DBMS_RANDOM 패키지 사용

http://blog.ngelmaum.org/entry/research-note-using-oracle-dbms-random-package