>hi,
>
>thank you for reply,
>
>i send example to your ps email.
>thanks.
>
>regards

The field No in table Tab2, for example, is that supposed to be Arabic characters? How do I show it correctly? This is more out of curiosity; I don't read Arabic.

I think I can confirm what I commented in my previous message:

The same information repeats for several months, for example:

year1   month1    amount1
2004       1      33,2208
2004       2      33,2208
...
2004       12     33,2208

This is easy for finding the data through a program, but it is too much work for the user to enter the data in the first place (or for the programmer to automate it), and to make corrections later.

I suggest you store information only when the amount changes.

For exmaple, let's assume that you start with the amount1 indicated above, for January 2004, and then, in January 2005 there is a change in amount1. You only need two records:

year1   month1    amount1
2004       1      33,2208
2004       12     35,0000

If you have another criteria (like your field no), you will have to repeat for each "no".