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What are the three classes of SQL expression?
SQL expression consists of three clauses:
Select
From
Where
how to design a bakery business in data base
er diagram of sport
what are the limitations of dbms?
Draw an EER diagram that captures the "is-a" hierarchy of students in another simple database. The database captures both the "basic" information (say, student ID and student name)
QUESTION (a) Consider a car database consisting of car model, car make, car origin, Engine capacity, color, cost.
Give detail description on Transactions. - Using transactions we can group all SQL commands into a single unit. - Transaction begins with some task and finishes only when a
Saving Derived Attributes to Avoid Re-computation Data that is derived from other data should be stored in the computed form to avoid re-computation. For this, we could define
A field-groups statement or an insert statement reverses storage space and transfers values. False.
A database is a set of data. But, is the data kept in a database trustworthy? To answer that query we must first answer the question. What is integrity? Integrity simply means t
Create a Student database and Retrieve the names of all students majoring in ‘CS' Consider the following relational database: STUDENT (name, student#, class, major) COURSE (co
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