Friday , March 29 2024

How to Find Locks on Library Cache Objects

 

We can see the locks on Library cache objects in V$ACCESS (GV$ACCESS on RAC systems).

The dependency on objects is managed by library locks. For example, when a column in a table is dropped, objects (such as images) that need this table must be invalid.

With these locks;

  • A client can prevent other clients from accessing the same object
  • The client can provide dependency for a long time.

The sample query is as follows:

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