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What are the technique to define a schema completely ?
A schema is completely define by DDL and DML query language.
what benefit can a company gain by managing its own infrasture and services
Explain the two constraints, check and foreign key in SQL along with an example for each. Give the syntax. CHECK constraint - CHECK constraint specifies an expression which
Describe multi key files
#floating point representation is used to store
What is completeness constraint on generalization? Define the variation between total and partial design constraint. Give an example each. Ans: Completeness Constraints
Replication : It is definite as a copy of a relation. Every replica is stored at a dissimilar site. The alternative to replication is to store only single copy of a relation which
Consider entity type Employee with attributes empNumber (this is unique), empName, and the year when he/she was hired. An employee can either be a technical employee, a marketing e
HOW TO SOLVE THE LP Problems by simplex method?z=x1+-3x2+2x3
Benefits of heap files 1. This is a easy file Organisation method. 2. Insertion is somehow capable. 3. Good for bulk-loading data into a table. 4. Best if file
What is a relationship called when it is maintained between two entities? A relationship is called Binary relationship when it is maintained between two entities.
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