Answer:
Shared Lock allows simultaneous access of record by multiple Select statements.
Shared Lock blocks record from updating and will remain in queue waiting while record is accessed for reading.
If update process is going on then read command will have to wait until updating process finishes.
Shared Lock blocks record from updating and will remain in queue waiting while record is accessed for reading.
If update process is going on then read command will have to wait until updating process finishes.
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