I need to update / insert a large number of entries very fast. I see 2 options
The target db is oracle. The number of inserts/updates in a batch is a fixed number between 1000 and 10000 (does this number has some impact on performance?)
So what way to go?
Your options are essentially the same. In fact they may be identical, unless your second option is implemented in a poor way.
Using built in PreparedStatement
batching is safer, since the driver will know what to do a lot better than you do. There's less chances for programmer error, and should it ever happen that you change your database provider, you won't need to double check whether your solution is still valid.
Make sure to check out how to properly perform the batching. For example the batch size is commonly 100
instead of the full amount of rows you wish to insert (so you would have 10 executeBatch()
es to insert your 1000 rows).
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