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What is an Operand?
The data on which the operation is to be performed is known as an Operand
UNION If R1 and R2 are two union compatible relations then R3 = R1 ∪ R2 is the relation having tuples that are either in R1 or in R2 or in both. In case, R3 will have tuples
What is a transaction ? The Transaction is a unit of data processing. For instance, many of the transactions at a bank may be withdrawal or deposit of money; transfer of money f
Describe the Association: Design Before we describe association design let us define association "Association is set of links between two objects in the object model". It is
What is first normal form? The domain of attribute must contain only atomic (simple, indivisible) values.
What are the two types of serializability? The two types of serializability is a) Conflict serializability b) View serializability
Ancestry database records information about family trees . Following information is recorded about each person: FIRSTNAME first name SURNAME surname MNAME maiden name (if
prototype of a distributed information system for a national car part retail outlet chain.
Define Assertions in SQL a. An assertion is a predicate that is expressing a condition we wish the database to always satisfy. b. Domain constraints, functional dependency
1. Develop a flowchart using the decision structure to solve the following problem. A Box Lunch Bonanza is a small catering company that offers 2 different types of box lunches
A field-groups statement or an insert statement reverses storage space and transfers values. False.
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