SELECT name
FROM instructor
WHERE salary <= 100000 AND salary >= 90000;
This query can be replaced by which of the following ?
SELECT name
FROM instructor
WHERE salary BETWEEN 90000 AND 100000;
SELECT name
FROM employee
WHERE salary <= 90000 AND salary>=100000;
SELECT name
FROM employee
WHERE salary BETWEEN 90000 AND 100000;
SELECT name
FROM instructor
WHERE salary BETWEEN 100000 AND 90000;
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1
Discuss
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Department (dept name, building, budget) and Employee (employee_id, name, dept name, salary)
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2
Discuss
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Which keyword must be used here to rename the field name?
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3
Discuss
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A domain is atomic if elements of the domain are considered to be ____________ units.
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4
Discuss
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Database __________ which is the logical design of the database, and the database _______ which is a snapshot of the data in the database at a given instant in time.
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5
Discuss
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For each attribute of a relation, there is a set of permitted values, called the ________ of that attribute.
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6
Discuss
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The most commonly used operation in relational algebra for projecting a set of tuple from a relation is
Solution |
7
Discuss
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The _______operation performs a set union of two “similarly structured” tables
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8
Discuss
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To display the salary from greater to smaller and name in ascending order which of the following options should be used?
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9
Discuss
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Course(course_id,sec_id,semester) Here the course_id,sec_id and semester are __________ and course is a _________
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10
Discuss
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In SQL the spaces at the end of the string are removed by _______ function.
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