Oracle 10gr2: applicare le date immesse tra le 9:00 e le 17:00?

Question

Voglio far rispettare le date-ora inserite tra le 9:00 e le 17:00. Come posso imporlo con i vincoli ORACLE CHECK?

Answer 1

SQL> ed
Wrote file afiedt.buf

  1  create table date_check (
  2  dt date check( to_number( to_char( dt, 'HH24' ) ) between 9 and 16 )
  3* )
SQL> /

Table created.

SQL> ed
Wrote file afiedt.buf

  1* insert into date_check values( to_date( '01/01/2008 08:30', 'DD/MM/YYYY HH2
4:MI' ) )
SQL> /
insert into date_check values( to_date( '01/01/2008 08:30', 'DD/MM/YYYY HH24:MI'
 ) )
*
ERROR at line 1:
ORA-02290: check constraint (SCOTT.SYS_C006170) violated


SQL> ed
Wrote file afiedt.buf

  1* insert into date_check values( to_date( '01/01/2008 10:30', 'DD/MM/YYYY HH2
4:MI' ) )
SQL> /

1 row created.

SQL> ed
Wrote file afiedt.buf

  1* insert into date_check values( to_date( '01/01/2008 17:30', 'DD/MM/YYYY HH2
4:MI' ) )
SQL> /

insert into date_check values( to_date( '01/01/2008 17:30', 'DD/MM/YYYY HH24:MI'
 ) )
*
ERROR at line 1:
ORA-02290: check constraint (SCOTT.SYS_C006170) violated