Data Description Language (DDL)  Definition/Meaning:

Loosely, the section of a database management system concerned with the specification of the logical structure of the data; specifically, the language used for that purpose. In early database systems little distinction was made between the logical and physical structure of the data, and the DDL usually contained information concerning both. It is becoming increasingly common for these two aspects to be separated, and for the DDL to be restricted to the logical structure while information concerning the physical data structure is contained in a data structure language.

Near by Terms: DAC D/A Converter (DAC) Daisychain (bused interface) Daisy Wheel Printer DARPA DASD Data Data Abstraction Data Acquisition Data Aggregate Databank Database Database Administrator Database Language Database Management System (DBMS) Database System Data Break (cycle stealing) Data Bus (data path) Data Capture    Data Cartridge Data Chaining Data Channel Data Cleaning Data Collection     Data Communication Equipment Data Communications Data Compaction Data Compression Data Contamination Data Definition Language (DDL) Data Description Language (DDL)    Data Dictionary (data dictionary/directory; DD/D) Data Encryption Data Encryption Standard (DES) Data Module Data Name Data Network Datapac Data Path Datapoint Data Preparation Data Processing (DP) Data-Processing Manager (DPM) Data Protection Legislation Data Reduction Data Retrieval Data Selector/Multiplexer Data Set Data Sheet Data Sink Data Source Data Stream Data Structure (information structure) Data Structure Language Data Summarization Data Tablet Dam Terminal Equipment Data Transfer Rate Data Translation Data Transmission Data Transparency Data Type Data Validation Data-Vet Program Data Word Datum Datum-Limit Register Daughter Daughter Board (daughter card)