OraCle
OraCle SQL문의 종류 DDL : create, alter, drop (이전작업내용까지 자동으로 commit되므로 rollback이 안됨) DML : insert, update, delete DCL : grant, revoke TCL : commit, rollback query : select select table_name,constraint_name,constraint_type,search_condition from user_constraints where table_name in ('TABLE_NAME','TABLE_NAME'); - Table의 Key를 조회하는 명령 - constraint_type : C - Not Null , p - Primary key , R - Foreign key p..