Results for: lock
Articles: lockSee All 9 articles
The lock statement acquires the mutual-exclusion lock for a given object, executes a statement block, and then releases the lock. While a lock is held, the thread that holds the lock can again acquire and release the lock. Any other thread is blocked from acquiring the lock and waits until the lock is released. The lock statement is of the form
Lock resources to prevent unexpected changes. 04/08/2019; 6 minutes to read; Contributors. all; In this article. As an administrator, you may need to lock a subscription, resource group, or resource to prevent other users in your organization from accidentally deleting or modifying critical resources.
lock is available only for CLR objects and can only be used in CLR code. Internally, the lock class uses Monitor to synchronize access. For more information, see the referenced article. Members Public constructors
SQL Server, Locks Object. 03/14/2017; 2 minutes to read; Contributors. In this article. APPLIES TO: SQL Server Azure SQL Database Azure SQL Data Warehouse Parallel Data Warehouse The SQLServer:Locks object in Microsoft SQL Server provides information about SQL Server locks on individual resource types. Locks are held on SQL Server resources, such as rows read or modified during a transaction ...
Generally, it is best to call Lock only when you need to access the buffer memory, and not earlier. Locking the buffer does not prevent other threads from calling Lock, so you should not rely on this method to synchronize threads. This method does not allocate any memory, or transfer ownership of the memory to the caller.