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Queried for: Data definition language
Definition:
(DDL) 1. A language enabling the structure and instances of a database to be defined in a human-, and machine-readable form.
SQL contains DDL commands that can be used either interactively, or within programming language source code, to define databases and their components, e.g. CREATE and DROP.
2. A specification language for databases, based on the entity-relationship model. It is used in the Eli compiler-compiler to manage type definitions.
["DDL Reference Manual", ECE Dept U Colorado, 1991].
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