Name 'constraints' for a column in view

Question

How could we create a view with column name 'constraints' ? please help me .

Answer 1

It's a bad idea to use a reserved word as a column name
  1* select * from v$reserved_words where keyword like 'CONSTRAINT%'
SQL> /
KEYWORD                            LENGTH R R R R D
CONSTRAINT                             10 N N N N N
CONSTRAINTS                            11 N N N N Y
SQL> desc v$reserved_words;
Name                                      Null?    Type
KEYWORD                                            VARCHAR2(30)
LENGTH                                             NUMBER
RESERVED                                           VARCHAR2(1)
RES_TYPE                                           VARCHAR2(1)
RES_ATTR                                           VARCHAR2(1)
RES_SEMI                                           VARCHAR2(1)
DUPLICATE                                          VARCHAR2(1)but the view at least compiles
SQL> create or replace view v1
  2  as
  3  select 'foo' constraint
  4    from dual;
View created.
SQL> ed
Wrote file afiedt.buf
  1  create or replace view v2
  2  as
  3  select 'bar' constraints
  4*   from dual
  5  /
View created.Justin