oracle query

Is start_time and end_time a number?
Do you calculate it?

Without AM and PM on the times how do you know total_hours?

select start_time,start_ampm,end_time,end_ampm,total_hours
from dept_staff
where PAYROLL_ID = 'ZZW0024277'
AND SCHEDULE_DATE = '01-apr-2012'

START_TIME|START_AMPM|END_TIME|END_AMPM|TOTAL_HOURS
     545|              A|              200|              P|            825

start time, end time and total hours are numbers in the database

johnsone should be correct.

I mis-read the question.  I was thinking you wanted to calculate total hours not just format what you had.

please use the following query :-

if you want the hours in 24 run this

select to_char(start_time,'HH24:MI:SS') as start_time, to_char(end_time,'HH24:MI:SS') as end_time, total_hours from dept_staff
where PAYROLL_ID = 'ZZW0024277'
AND SCHEDULE_DATE = '01-apr-2012'

if you want the hours in 12 then run this

select to_char(start_time,'HH:MI:SS') as start_time, to_char(end_time,'HH24:MI:SS') as end_time, total_hours from dept_staff
where PAYROLL_ID = 'ZZW0024277'
AND SCHEDULE_DATE = '01-apr-2012'

OR

select to_char(start_time,'HH12:MI:SS') as start_time, to_char(end_time,'HH24:MI:SS') as end_time, total_hours from dept_staff
where PAYROLL_ID = 'ZZW0024277'
AND SCHEDULE_DATE = '01-apr-2012'

>>select to_char(start_time,'HH24:MI:SS')

expert9,
This will generate an error.  start_time is a number not a date.

ok then do this

select to_char(to_char(start_time,'0000'),'HH24:MI:SS')

this will add 0 if they will not be 4 in length :)

try and tell me

expert9,

They just want to format the number not convert to date then back to string.  Expert johnsone has provided what I believe to be the answer.

>>try and tell me

Please try things yourself before posting.  That also errors:

select to_char(to_char(123,'0000'),'HH24:MI:SS') from dual;

Johnsone,

Can I have 8.25 for total hours?

johnsone did all the work and should get all the points.

>>Can I have 8.25 for total hours?

Would that not be the same to_char used for times without the replace?

sorry the to_Char in above should be to_Date i copied wrong while paste from my local oracle server by the way if its for display purpose you can use this , i thought it would be for display and could be converted to date just the HHMM in date no other....

SELECT TO_DATE(TO_CHAR(825,'0000'),'HH24MI') FROM DUAL;

>>SELECT TO_DATE(TO_CHAR(825,'0000'),'HH24MI') FROM DUAL;

Although that might run, it does nothing to answer the question.

They want to take a number: 123 and format it like: 1:23
Then for total hours, take a number: 825 and format it like 8.45

SELECT TO_DATE(TO_CHAR(825,'0000'),'HH24:MI:SS') FROM DUAL;

u get it formatted.... the 8.25 can be get with the help of decimal precision format

>>the 8.25 can be get with the help of decimal precision format

And that is what johnsone posted in http:#a37788512

Converting it into a date first is unecessary.

thanks