Source: cirosantilli/sqlite-isolation-levels

= SQLite isolation levels
{c}
{tag=SQL transaction isolation level}

https://www.sqlite.org/pragma.html#pragma_read_uncommitted mentions:

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The default isolation level for SQLite is SERIALIZABLE
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It does not appear possible to achieve the other two levels besides SERIALIZABLE and READ UNCOMMITED

https://www.sqlite.org/isolation.html