Save Internal table to memory - problem

Hi everybody ,

I need to extract one Internal table to memory , every 1st in the Month .

Then every day I will be reading this table for my report ( in order to avoid running every day same and same database selections) .

My originall idea wos with EXPORT TO MEMORY ID , AND IMPORT

but it does'nt work next day ... With Export data is cept only untill tthe end of the transaction ...

Is there any way except of storing data in one Z_ database table ???

Thanks in advance