pytds.extensions – Extensions to the DB API¶
Isolation level constants¶
- pytds.extensions.ISOLATION_LEVEL_READ_UNCOMMITTED¶
Transaction can read uncommitted data
- pytds.extensions.ISOLATION_LEVEL_READ_COMMITTED¶
Transaction can read only committed data, will block on attempt to read modified uncommitted data
- pytds.extensions.ISOLATION_LEVEL_REPEATABLE_READ¶
Transaction will place lock on read records, other transactions will block trying to modify such records
- pytds.extensions.ISOLATION_LEVEL_SERIALIZABLE¶
Transaction will lock tables to prevent other transactions from inserting new data that would match selected recordsets
- pytds.extensions.ISOLATION_LEVEL_SNAPSHOT¶
Allows non-blocking consistent reads on a snapshot for transaction without blocking other transactions changes