_____ operator is used for appending two strings.
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A relational database consists of a collection of
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2
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The result which the operation contains all pairs of tuples from the two relations, regardless of whether their attribute values match.
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3
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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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4
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The ______ clause allows us to select only those rows in the result relation of the ____ clause that satisfy a specified predicate.
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5
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The _________ provides a set of operations that take one or more relations as input and return a relation as an output.
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6
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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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7
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Student(ID, name, dept name, tot_cred)
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8
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Which one of the following is procedural language?
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9
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In the SQL given above there is an error . Identify the error.
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10
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The _______operation performs a set union of two “similarly structured” tables
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