Does Write-Ahead-Logging allow me to make concurrent changes to a table?
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11-10-2020 - |
Question
In Sqlite3, Write-Ahead-Logging mode allows one process to read a table, while another is writing to it. It doesn't say anything about one process writing and another deleting/updating.
Is this possible in Sqlite3?
Solution
A DELETE
and/or an UPDATE
are both writes!
Only one process can write at any one time - that is an INSERT
, an UPDATE
or a DELETE
at the same time. You can SELECT
with as many processes as you like, but only one of the others at a time!
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