Consumer and Business Database

What is your choice about database to handle large volume of data? It's almost 300 millions of data to manage!! I've used PostgreSQL in an environment where we're seeing 100K-2M new rows per day, most added to a single table. However, those rows tend to be reduced to samples and then deleted within a few days, so I can't speak about long-term performance with more than ~100M rows. I've found that insert performance is quite reasonable, especially if you use the bulk COPY. Query performance is fine, although the choices the planner makes sometimes puzzle me; particularly when doing JOINs / EXISTS. Our database requires pretty regular maintenance (VACUUM/ANALYZE) to keep it running smoothly. I could avoid some of this by more carefully optimizing autovacuum and other settings, and it's not so much of an issue if you're not doing many DELETEs. Overall, there are some areas where I feel it's more difficult to configure and maintain than it should be. I have used Oracle also. And MySQL only for small datasets, so I can't compare performance. But PostgreSQL does work fine for large datasets. Anyway, kindly let me know your preference. I will work accordingly. Regarding the website purpose, the layout be exactly similar with the reference website or need few customization? Also I am curious to know about the preferred payment processor? Many queries are there, need to discuss with you. Hoping to have a prompt response by your end.

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