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Describe the host language? Host Language: You could write applications along with SQL statements embedded inside a host language. The SQL statements give the database inter
A relation has: Relational Schema Relation instance Relational Schema: A relational schema shows the relation's name, its attributes and the domain of every a
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What is Trigger? Trigger: A database trigger is procedural code which is automatically executed in response to specific events on a particular table in a database. Triggers can
What are axioms? Axioms or rules of inference give a simpler technique for reasoning about
Answer SQL Queries to extract data from data tables and questions on mapping conceptual data models into relational data model.
Briefly explain the state diagram by taking one example. State Diagram - An object can be given a sequence of input instructions. The state of the object can vary depending u
domain
Example - ALTER TABLE emp MODIFY (empno NUMBER (7));
What is an Operand? The data on which the operation is to be performed is known as an Operand
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