NonStop Server for Java (NSJ) Programmer's Guide (NSJ 2.1+)

D
Data Control Language (DCL)
The set of data control statements within the SQL/MP language.
Data Definition Language (DDL)
A Compaq language that describes the record and file structures of a database. When a
database is created with DDL, the DDL compiler can create a library that other languages
can use.
Data Definition Language (DDL) dictionary
A database that contains object definitions and record types created by the DDL
compiler. It serves as a map of a user's business database. A DDL dictionary is a set of 14
files on the same subvolume, and a subvolume can contain only one DDL dictionary. The
name of the dictionary is the subvolume name.
Data Manipulation Language (DML)
The set of data-manipulation statements within the SQL/MP language. These statements
include INSERT, DELETE, and UPDATE, which cause database modifications that
Remote Duplicate Database Facility (RDF) can replicate.
DCL
See Data Control Language (DCL).
DDL
See Data Definition Language (DDL).
ddl2java
A tool that generates and (optionally) compiles a Java source file for each data
description entry in an input file, reading the details for each generated file from a DDL
dictionary.
deserialization, object
The reverse of Object Serialization.
digital signature
A way of automatically identifying the sender of an electronic message or document,
without the possiblity of alteration.
Distributed Systems Management/Software Configuration Manager (DSM/SCM)
A GUI-based program that installs new software and creates a new operating system.
DSM/SCM creates a new software revision and activates the new software on the target
system.
DML
See Data Manipulation Language (DML).
DNS