Nonstop Database, HiRDB Version 9 Command Reference

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Appendix B.1 Lock mode for operation commands

The table below shows the lock modes for the operation commands.

Table B-1 Lock modes for operation commands

Execution environment Resource
Command Option Data dictionary table RDAREA status RDAREA Backup hold In-memory synchronization
pdbufls All -- -- -- -- --
pdclose None -- EX EX -- EX#3
pddbfrz All -- EX EX -- --
pddbls -a -- -- SR -- --
None, -l, or -b -- -- -- -- --
pdhold None -- EX EX -- --
-c -- EX EX -- EX
-i -- EX PR -- --
-b -- EX PR -- EX
-bw -- EX PR EX#2 EX
-buw -- EX PR EX#2 --
-bu -- EX -- EX#2 --
pdopen None -- EX EX -- --
pdrels None or -o -- EX PR/--#1 -- --

Legend:
config: configuration
dict: dictionary

#1: Lock is not placed when the resource is in updatable backup-hold status.

#2: Lock is not released until it is released by the pdrels command or the resource is placed in error shutdown status.

#3: Lock is obtained when the RDAREA is not in error shutdown or closed status before the command executes.