Problem with report COMPUTE SUM

Question

hi @all
hope sombody can help me
i have a prob with a report in sql, see script below:
CLEAR COLUMNS BREAKS COMPUTES;
COLUMN WORK_TYPE FORMAT a95 HEADING 'Work Type' ENTMAP off
COLUMN TEXT FORMAT a95 HEADING 'Work Description' ENTMAP off
COLUMN TOTAL_MAN_MINUTES FORMAT 9999.99 HEADING 'Working Hours' ENTMAP off
COLUMN TOTAL_MAINT_MAN_MINUTES FORMAT 9999.99 HEADING 'Maintanance Hours' ENTMAP off
BREAK ON report
COMPUTE SUM OF TOTAL_MAN_MINUTES TOTAL_MAINT_MAN_MINUTES ON report
SELECT MWO.WORK_TYPE AS Work_TYpe, WORK_TYPE.TEXT AS Description, SUM(TRUNC(MAINT_ACTION.TOTAL_MAN_MINUTES / 60, 2)) AS Working_Hours, SUM(TRUNC(MAINT_ACTION.TOTAL_MAINT_MAN_MINUTES / 60, 2)) AS Maintanance_Hours
FROM MAINT_ACTION, MWO, WORK_TYPE
WHERE MWO.MWO_ID = MAINT_ACTION.originating_mwo_id
AND MWO.WORK_TYPE = WORK_TYPE.CODE
AND MWO.AC_SERIAL_NO = 'AS0007'
AND MAINT_ACTION.START_DATE_TIME_ACT >= '01.04.2010'
AND MAINT_ACTION.START_DATE_TIME_ACT <= '01.05.2010'
AND MWO.WORK_TYPE BETWEEN '000' AND '999'
GROUP BY MWO.WORK_TYPE, WORK_TYPE.TEXT
ORDER BY MWO.WORK_TYPE, WORK_TYPE.TEXT;
what i expect is the total working_hours and maintanance_hours per column at the last line from the output, but what i get is only that below
WORK_TYPE DESCRIPTION WORKING_HOURS MAINTANANCE_HOURS
041, blablabla, 1,16, 0,58
105, sülzsülz, 2, 1,5,
348, bla, 3, 2,33,
what is my mistake??
sorry for my bad english
cu ice
Edited by: Icebear on May 14, 2010 1:28 AM

Answer 1

Hi,
The SQL*Plus command:
COMPUTE SUM OF TOTAL_MAN_MINUTES TOTAL_MAINT_MAN_MINUTES ON reportmeans "from now on, any time there a result set has is a column called TOTAL_MAN_MINUTES or TOTAL_MAINT_MAN_MINUTES, print the grand total of that column at the end of the report."
Your result set does not have columns with those names, so the COMPUTE statement does not apply to that query.
The alias used in the output is what's important; SQL*Plus won't try to find out what columns from the table were used in deriving all the output columns.
Try using the same column names in both the COMPUTE statement and the query.
For example:
COMPUTE SUM OF   Working_Hours   Maintanance_Hours    ON report