Question about DATE format (Q190 in TK) 1Z0-007

[ozkucur]

Examine the structure of the EMPLOYEES table:

EMPLOYEE_ID NUMBER Primary Key
FIRST_NAME VARCHAR2(25)
LAST_NAME VARCHAR2(25)
HIRE_DATE DATE


Which INSERT statement is valid?

A)INSERT INTO employees (employee_id, first_name, last_name, hire_date)
VALUES ( 1000, ‘John’, ‘Smith’, ‘01/01/01’);
B)INSERT INTO employees(employee_id, first_name, last_name, hire_date)
VALUES ( 1000, ‘John’, ‘Smith’, ’01 January 01’);
C)INSERT INTO employees(employee_id, first_name, last_name, Hire_date)
VALUES ( 1000, ‘John’, ‘Smith’, To_date(‘01/01/01’));
D)INSERT INTO employees(employee_id, first_name, last_name, hire_date)
VALUES ( 1000, ‘John’, ‘Smith’, 01-Jan-01);

ANSWER: TK says A

In my opinion the default repsetation of the date in Oracle is like this: '01-JAN-01' . But it doen't exist in the answers.

I've tried A, but got the following error:

ORA-01843: not a valid month

any opinion?

[marist89]

My opinion is that's a horrible question dependant on the characterset you are using.

[ozkucur]

What do you mean? Do you mean that the default date format is somehow dependant on the character set (regional settings etc.)?

[marist89]

yes

[richfats]

You have to set the parameter NLS_DATE_FORMAT to use the date parameter. You can use

show parameter nls_date_format this will show you the format that is in use.