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A set of possible data values is called?
A set of possible data values is called as domain.
The functions of DBA ?
Explain the challenges before an E-business management.
What is DataWarehousing? Subject-oriented, meaning that the data in the database is organized so that all the data elements relating to the similar real-world event or object
What is Relational calculus? Relational calculus is a Non- Procedural language.
What is a trigger
growing phase and shrinking phase are disjoint, why ?
Explain I command in QBE ? I : It is the command in QBE that is used to insert tuple (s) into the database
Add generation capabilities and/or tailor the built-in functionality of generator. This enables you to produce "all" the test data for the MySQL tables you produced in the previous
Given the following set of functional dependencies {cf?bg, g?d, cdg?f, b?de, d?c} defined on R(b,c,d,e,f,g) a.Find a non-redundant cover. b.Find a canonical cover.
Views in relational algebra: 1. Basic expression contains either a) A relation in the database. b) A constant relation. 2. General expressions are madde out of sma
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