Hi all,
I have a table like this with 5 fields
Opening date Meter number , opening reading closing reading total usuage
12/18/2015 ME1 0.0000 (Default) 10.0000 10.0000
12/19/2015 ME1 10.0000 22.0000 22.0000
12/19/2015 ME2 0.0000 7.0000 7.0000
12/18/2015 ME 2 7.0000 10.0000 3.0000
Like this calculation goes on ....
when i enter the close reading for the selected meter..............its values has to change on opening reading.
here i have ME1.......And i have 2 entries .......... each meter initial value value would be 0.0000 and it update the closing reading as input to the next record......
how to update..what are the methods that you have use........on what method what has to be done..please its urgent..
Have a nice day