Returns an INTEGER value that uniquely identifies
a database's transaction.
Syntax
DBTASKID ( integer-expression|logical-name|alias )
|
-
integer-expression
- The sequence number of a database the ABL session is connected to. For example,
DBTASKID(1) returns information on the first database the ABL session is connected to,
DBTASKID(2) returns information on the second database the ABL session is connected to,
etc. If you specify a sequence number that does not correspond to a database the ABL
session is connected to, the DBTASKID function returns the Unknown value
(?).
-
logical-name or alias
- A character expression that evaluates to the logical name or alias of a database that
is connected to the current ABL session. If the character expression does not evaluate
to the logical name or alias of a connected database, DBTASKID returns the Unknown value
(?).
Note: You must enclose all character strings in
quotes.
Notes
- If the application is not in a transaction, DBTASKID returns the Unknown value
(?).
- If the client is connected to two databases and both databases
participate in the transaction, DBTASKID does not necessarily return
the same value for each database. The value DBTASKID returns for
a database is for that database only.
- DBTASKID does not support Progress databases prior to Progress Version 8. DBTASKID
returns the Unknown value (?) for DataServers, Version 7 Progress
databases, and the temp-table database.
- DBTASKID is designed for database replication. When you create
a log record for a transaction, you can call DBTASKID and store
the transaction ID. When you load the transaction, you can group
log records by transaction ID. For more information on database
replication, see OpenEdge Data Management: Database Administration,
and the reference entry for the RAW-TRANSFER statement.
