The paglock hint force the query to use page-level locking instead of row-level or table – level. It can improve performance when multiple rows on the same page are being accessed. Reducing the overhead of row-level locks.
A page is an 8KB unit of data
storage. Using paglock we will lock an entire page.
By incorporating the PAGLOCK
hint, exclusive locks are acquired at the page level for the specified sections
of the table. This prevents other transactions from accessing or modifying
those specific pages until the updates or modifications are completed. However,
it’s crucial to use PAGLOCK judiciously, considering its potential impact on
concurrency and ensuring that the duration of the locks is minimized to avoid
blocking other transactions unnecessarily.
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