Serialization

Here is the entire paragraph:

"Pinning and locking: Similar to the situation with Oracle buffer headers, the central shared pool object - the cursor - can be pinned and locked. Pinning ensures memory is not improperly deallocated and can also be used to ensure serialization. Locking is used to prevent an inappropriate change. They can be used together. For example, during a procedure compilation, the related cursor can be pinned to ensure the memory is not deallocated and locked to ensure no other process can inappropriately change the related objects. And, of course, latching can be involved to ensure serialization."