Technical data

DB-CURRENT-RECORD-ID
A database special register containing the subschema user ID number (UID) of
the record type of the current record of the run unit. It contains zero if there is
no current record of the run unit.
DB-CURRENT-RECORD-NAME
A database special register containing the name of the record type of the current
record of the run unit. It contains spaces if there is no current record of the run
unit.
DBA
See database administrator.
DBCS
See Database Control System.
dbkey
See database key.
DB-KEY
A database special register that holds the dbkey of the record accessed by the last
FETCH, STORE, or FIND statement. This special register can be used to fine
tune storage strategies in the database.
DBMS
See database management system.
DBQ
See Database Query Utility.
DB-UWA
A database special register which serves as the record delivery area that the
Database Control System (DBCS) uses to make data items available to your
program.
DDL
See data definition languages.
de-edit
The logical removal of all editing characters from a numeric edited data item in
order to determine that item’s unedited numeric value.
deadlock
A database processing situation in which two or more run units are stopped by
conflicting requests for locked records.
DML
See data manipulation language.
DMU
See Dictionary Management Utility.
Glossary–4