> According to the documentation (https://firebirdsql.org/refdocs/langrefupd20-get-context.html) I can retrive the transaction’s isolation level:

> select rdb$get_context('SYSTEM', 'ISOLATION_LEVEL') from rdb$database

>

> But I need to know the access mode too. Is this possible somehow to know it via contexts?

Firebird3 supports following transaction-related items in 'SYSTEM' namespace:

"TRANSACTION_ID", "ISOLATION_LEVEL", "LOCK_TIMEOUT", "READ_ONLY"

Regards,

Vlad