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Explain Instance and schemas? Instances and schemas: Databases changes over time as the information is deleted and inserted. The collection of information stored in database
DDL Compiler The DDL compiler changes the data definition statements (such as CREATE TABLE .... in SQL) into a set of tables having metadata tables. These tables have infor
wh
Consider a systems development project with the following data Activity Duration (weeks) Precedence Relationship 1. Software design
why older data models are being replaced by new data models.
Which is an advantage of view? The Advantages of view is Data security, Derived columns and Hiding of complex queries
Describe Parameteric end users? Parametric end users might be given update access, but are commonly not permitted to change the structure of data.
The database is to record information about artists for a (music) production company. An artist is the name of a singer or band; the name of the artist, the year the artist started
What do you understand by RAID? Explain RAID Level 4 and Level5? RAID - It is stands for Redundant Array of Inexpensive Disks (as named by the inventor), or alternatively Re
Need a sample of a clinic database relationships
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