my actual pb is i need a expert advice in selecting the option whether go ahead with hash from a file or hash from database. Increasing the hardware or rearranging the index can be done to get a faster serach pattern. I have to do the lookup in database only , but i thought accessing databse for such inflow of records will impact performance.SO i though of option of hash from file/database. i my case 2600*100 records/min needs to be lookup and table will have 100k records i am very bad in network area.

In reply to Re^4: how to define key for a hash by Anonymous Monk
in thread how to define key for a hash by Anonymous Monk

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