How to create the correct date-time field?

Posted on 2014-09-16
Last Modified: 2014-09-16
Dear Experts,

I have a CSV file with a field like below:

"May 28 00:14:39","Event-001","This is error event"

I would like to load such files to an Oracle table using external tables. However I do not know which Oracle Data Type I'm going to create for the first field (which is May 28 ...) while creating table.

Note: I'll perform  insert into oracle-table select * from external-table.  

Question by:GurcanK
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LVL 13

Assisted Solution

by:Alexander Eßer [Alex140181]
Alexander Eßer [Alex140181] earned 500 total points
ID: 40324784
- Date type should/could be DATE
- for converting you may use: to_date('May 28 00:14:39', 'mon dd hh24:mi:ss')

Author Comment

ID: 40324791
How shall I define this "to_date" in create table statement?

Author Comment

ID: 40324805
In other words will external table read this field correctly with type DATE?
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LVL 13

Accepted Solution

Alexander Eßer [Alex140181] earned 500 total points
ID: 40324808
You said, you're doing a "insert into oracle-table select * from external-table"?!
If you define  that date column upon your oracle-table then you could do "insert into oracle-table select col1, col2, col3, to_date(col4, 'mon dd hh24:mi:ss')  from external-table".
For the create table statement, regarding your oracle table, there is no need to cast with to_date function unless you do the loafding via CTAS....

Author Comment

ID: 40324813
Now, that's OK thanks.
LVL 13

Expert Comment

by:Alexander Eßer [Alex140181]
ID: 40324818
You're welcome. Don't hesitate to come back in case you need further help ;-)

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