How to convert the 24 calendar base hrs

Hi friends

I have a requirement for 12 HR to base 24 timing in my sql script

SELECT Request_id,

To_char (requested_start_date, 'DD-MON-RR HH') AS ' began to. "

CEIL ((SYSDATE-actual_start_date) * 1440) such AS "running for Minutes.

XXX.

here in the above script I've used this for requested_start_date... To_char (requested_start_date, "DD-MON-RR HH24:MI:SS")

But

How can I change that to 24 hours-> CEIL ((SYSDATE-actual_start_date) database * 1440) such AS "running for Minutes.

Thanks in advance

Thiliban

Published by: welcome07 on January 10, 2011 11:36

Sysdate is a date and apparently actual_start is also a date, the date data type have no format (well, they are stored in the internal Oracle date format) and Oracle knows if the time portion is in the morning or in the afternoon.

You need not specify a format of date when using dates in a calculation. If you want to display started at as a period of 24 hours, and then use the format on the to_char hh24 mask.

John

Tags: Database

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