Computer program for client usage. 
Program start connect to db
Program end disconect from db
Average run time 24h+

during testing no inserts were made only selects.

Select GPS data - no records gps device was not connected
Select unsend program status (user imput - no records) using left join from 
2 tables. But as mentioned before result always was 0, becouse user was 
doing no interaction in program.

how much memory it consumed hard to tell. In total use was 1.8 GB heap, 
program start stable was 250 mb. After all components and used data was 
prepared. I don't say difference is used size, might be other services at 
fault too, but yesterday tryed SQLite with same parameters Heap still 
increases but in slower paste and is about 1.3 GB of ram use in 19h of 
program run. Java still runs so far, while with h2 implementation 1.8 GB 
was reached in less than 9 and finally java crashed couse out of memory. To 
be more precise implementation i use of both h2 and SQLite are identical 
same selects etc. Only difference is sequences, SQLite dont have them so 
had to change a bit code in there with commit rollback and return record id 
instead. But as mentioned above no Gps device and no user input was made in 
both cases, so database should be with no or couple records during entire 
program run.

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