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HP NonStop Shadowbase Command Definitions

Database Specification Command Descriptions

HP NonStop Shadowbase Command Reference Manual—785421-002

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information when using this handler. Note that the Consumer

settings for RETRYDELAY is used to timeout file IO opeations.

When this bit is turned on (1), HP Shadowbase will assume that the

source “primary key” (relative record number) will not be preserved

when the records are replicated to the target file (this is common for

replicating relative records in an active/active environment where

the relative record numbers cannot be assured across the database

copies). Instead, the unique alternate key (identified via the “TM”

key specifier) will be used for positioning. Note that when this logic

is enabled, HP Shadowbase implements special logic for properly

handling the “reversing delete” operation of source-side alternate

key file duplicate key errors (contact HP Shadowbase Support for

more information).

<Bit1> Entry Sequenced file replication and BASE24 handling of DML

events (e.g., a BASE24 PTLF file). This includes the handling of

inserts, updates and deletes for files such as the BASE24

PCyymmdd and PAyymmdd file sets. When enabled, the “header”

records (at relative record 0 position in the file, i.e.,i.e., the first

record in the file) are always replicated to the appropriate target

location’s header record (INSERT and UPDATEs to the source’s

header record are always applied to the header record of the target

file, either as an insert or an update/overlay of what is at that

position). UPDATEs to other records in the source are discarded

(should not happen) – see the description of other bits below (for

example, bit <3>) for how updates to other types of entry-

sequenced files in BASE24 are handled .

<Bit2> This is the insert-anywhere bit and is used to determine how an

insert into a relative file is handled by the file system (this logic is

used for files that have the BASE24HANDLERID specified with bit

<0> enabled).

When set to 1 (on), relative inserts are inserted “anywhere” (relative

record value -2). When set to 0 (off), inserts are appended to the

eof (relative record value -1).

<Bit3> Entry Sequenced file replication and BASE24 handling of DML

events (e.g., a BASE24 ILF file). When enabled, the header

records (relative record 0) are always replicated to the appropriate

target location’s header record (INSERT and UPDATEs to the

source’s header record are always applied to the header record of

the target file, either as an insert or an update/overlay of what is at

that position).

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