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Database Management Systems | Alkhabay Bakgeldi
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What is a database transaction defined as?
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What is a subquery that contains a reference to a table (in the parent query) that also appears in the outer query called?
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In the INTERSECT operator, what must be true about the data types of the corresponding columns in the participating queries?
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What is the simplest syntax used to create a PostgreSQL view?
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If the AVG() function is executed on a column containing NULL values, how are the NULL values treated?
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The SUM() function returns the sum of values or distinct values, which is specified using which keyword in the syntax?
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The EXCEPT operator returns rows from which query that are not in the output of the other query?
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Which comparison operator is explicitly NOT allowed to be used with a subquery, although it can be used within a subquery?
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The MAX() aggregate function can be used in which clauses of an SQL statement?
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Which types of columns are NOT permitted for use in Set operators?
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