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What is a primary index?
A primary index is an index whose search key also explains the sequential order of the file.
Define data conversion? Helpful to load data into temporary staging tables. Then can write SQL code to do much of data processing. SQL code is simpler and faster to write than
Process of normalization is the integral part of designing a database. Justify this statement with suitable database design
A database administrator''s responsibilities and data contents
how to prepare a data dictionary for online examination system for certified courses?
Key to represent relationship amongs tables is called ? A Key that represent the relationship between tables is called Foreign Key.
Ancestry database records information about family trees . Following information is recorded about each person: FIRSTNAME first name SURNAME surname MNAME maiden name (if
Question: AirwaysCentre, an international airline booking company currently uses a relational database system for their operations, which includes the following relations: P
What is Oracle databse structure? Oracle database structure: The relational model has three main aspects: Structures: Structures are well-defined objects which store th
List any two disadvantages of a database system ? The disadvantages of database system are: • Database systems are difficult, complex, and time-consuming to design. • Substanti
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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