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What are the technique to define a schema completely ? A schema is completely define by DDL and DML query language.
Consider the following relational database: STUDENT (name, student#, class, major) COURSE (course name, course#, credit hours, department) SECTION (section identifier, course#, sem
Differentiate sub-class and super-class? The specialization of a class is known as subclasses.eg: employee is a subclass of person and teller is a subclass of employee. Convers
Indexed (Indexed Sequential) File Organisation It organises the file like a big dictionary, i.e., records are kept in order of the key but an index is stored which also allows
1. Determine that the Checkpoints are a part of Ans: Checkpoints are a part of Recovery measures
explain external view
In E-R diagram how generalization is represented? in E-R diagram generalization is represented by Triangle shape.
Sequences Sequences: Automatically produce unique numbers Are sharable Are typically used to make a primary key value Replace application code Speed up t
We have a new website where I need someone to 1: Inhabit the back end with all the recruitment agencies in the UK. I require someone who is not manually going to do this, but who w
Drawbacks of Database systems ?
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