SQLSERVER WITH NOLOCK
The NOLOCK hint in SQL Server allows a query to read data from a table that is currently being modified by another transaction. This means that the query will not wait for the other transaction to complete before reading the data.
The NOLOCK hint is used to improve query performance by reducing blocking and deadlocks. However, it can also lead to inconsistent or incorrect results if the data is being modified by another transaction at the same time.
It is important to use the NOLOCK hint with caution and only in situations where the risk of inconsistent data is acceptable. It is also recommended to use other isolation levels such as READ COMMITTED or REPEATABLE READ to ensure data consistency
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