SQL Transaction Isolations
Please remember that we consider:
ALTER DATABASE ecoPortal SET READ_COMMITTED_SNAPSHOT OFF
Please remember that we consider:
ALTER DATABASE ecoPortal SET READ_COMMITTED_SNAPSHOT OFF
Q.1: What will happen with SELECT from query B when executed?
It will get blocked.
It will return all results and will finish.
It will return half of the records and will get blocked.
It will show error message and will finish.
Q.2: What will happen with SELECT from query B when executed?
It will get blocked.
It will return all results and will finish.
It will return some of records and get blocked
It will show error message and will finish.
Q.3: What will happen with SELECT from query B when executed?
It will get blocked.
It will return all results with name "Michal Sql Company" and will finish.
It will return some of records and get blocked
It will show error message and will finish.
It will return all results with names before update and will finish.
Q.4: What will happen with SELECT from query B when executed?
It will get blocked.
It will return all results with name "Michal Sql Company" and will finish.
It will return some of records and get blocked
It will show error message and will finish.
It will return all results with names before update and will finish.
Q.5: What will happen with SELECT from query B when executed?
It will get blocked.
It will return all results with name "Michal Sql Company" and will finish.
It will return some of records and get blocked
It will show error message and will finish.
It will return all results with names before update and will finish.
Q.6: What will happen with SELECT (3) from query B when executed?
It will get blocked.
It will return all results with original country names (not japan).
It will show error message and will finish.
It will return all results with name country "Japan".
Q.7: What will happen with SELECT (3) from query B when executed?
It will get blocked.
It will return all results with original country names (not Hungary).
It will show error message and will finish.
It will return all results with name country "Hungary".
Q.8: What will happen with SELECT (4) from query B when executed?
It will get blocked.
It will return all results WITH supplier with id 24.
It will show error message and will finish.
It will return all results with supplier WITHOUT id 24.
Q.9: What will happen with SELECT (4) from query B when executed?
It will get blocked.
It will return all results WITH supplier with id 24.
It will show error message and will finish.
It will return all results with supplier WITHOUT id 24.
Q.10: What is default transaction isolation level for TransactionScope class in .NET?
READ UNCOMMITTED
READ COMMITTED
REPEATABLE READ
SERIALIZABLE
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