Granularity Of Locks at Tara Mcclain blog

Granularity Of Locks. The locksize clause of the alter table statement specifies the granularity of locks at the row, data partition, block, or table level. Because multiple granularity locking shortens the time that transactions must wait for locks to be released, it can increase concurrency. Granularity is the size of data items that are allowed to lock. Database objects can be locked by transactions at various granularities using mgl, ranging from individual data points to whole tables or databases. Figure 1, to lock a particular file obtain intention access to the data base, to the area containing the file and then request exclusive (or share). Three types of lock granularity are course granularity, fine.

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Three types of lock granularity are course granularity, fine. Figure 1, to lock a particular file obtain intention access to the data base, to the area containing the file and then request exclusive (or share). Granularity is the size of data items that are allowed to lock. Because multiple granularity locking shortens the time that transactions must wait for locks to be released, it can increase concurrency. The locksize clause of the alter table statement specifies the granularity of locks at the row, data partition, block, or table level. Database objects can be locked by transactions at various granularities using mgl, ranging from individual data points to whole tables or databases.

PPT Chapter 10 PowerPoint Presentation, free download ID630967

Granularity Of Locks Database objects can be locked by transactions at various granularities using mgl, ranging from individual data points to whole tables or databases. Granularity is the size of data items that are allowed to lock. Database objects can be locked by transactions at various granularities using mgl, ranging from individual data points to whole tables or databases. The locksize clause of the alter table statement specifies the granularity of locks at the row, data partition, block, or table level. Because multiple granularity locking shortens the time that transactions must wait for locks to be released, it can increase concurrency. Three types of lock granularity are course granularity, fine. Figure 1, to lock a particular file obtain intention access to the data base, to the area containing the file and then request exclusive (or share).

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