Oracle 10gr2: enforce dates entered are between 9am and 5pm?
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03-07-2019 - |
Question
I want to enforce that date-times that are entered fall between 9am and 5pm. How do I enforce this with ORACLE CHECK constraints?
Solution
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
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