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Explain what is DDL? DDL - Data Definition Language: statements used to define the database structure or schema. Some examples: CREATE - to create objects in the database ALT
Which language has presently become the defacto standard for interfacing application programs along with relational database system? The language which has recently become the
While using extract datasets it is required to have a special workarea for interface False. It is not required to have a special workarea for interface
Question: Consider the following database relations for a textbook ordering system used by a college bookshop: Book (b-copy#, bname, ISBN#, author, price, subject) Order (s#
Describe Specialsation and generalization? Specialisation /generalization: This is a top down and bottom up approach to the design of database. It displays the IS_A relation
assume we have the following apllicationthat model sccer team the games they play and the players inv each teamin the design we want to capture
what is correlation in nested query
diagrams and meaning
What is the initial step for object-oriented designing The initial step for object-oriented designing is object modeling. Before we go into deep about object modeling first of
Gaps in sequence values can happen when: - A rollback happens that is when a statement changes are not accepted. - When the system crashes - When a sequence i
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