database - What's the fastest way to query for a free ID in an SQLite table? -

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i heard sqlite has special processing id columns , stored special type, "primary numeric key".

so what's fastest query can write fetch free id? assuming id's before 1 occupied. max(id) best can get?

if need preallocate ids, create table stores last allocated id every table. preallocate id incrementing appropriate value , committing change, use needed, or forget.

this bit sequences work in oracle , postgres.


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