Understanding Shared Memory

When a C UDR executes in a virtual processor (VP), it allocates memory from the shared memory of the database server. To perform this allocation, the UDR takes the following steps:

1. Ensures that dynamic memory allocations come from the shared memory of the database server

   All virtual processors can access database server shared memory.

2. Chooses a memory duration to associate with this memory

   The database server automatically reclaims its shared memory through an associated memory duration.