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MCQs

Total Questions : 126 | Page 4 of 13 pages
Question 31. SQL is:
  1.    an operating system.
  2.    a DBMS.
  3.    a programming language.
  4.    a data sublanguage.
 Discuss Question
Answer: Option D. -> a data sublanguage.
Question 32. ________ was adopted as a national standard by ANSI in 1992.
  1.    SQL
  2.    Microsoft Access
  3.    Oracle
  4.    DBase
 Discuss Question
Answer: Option A. -> SQL
Question 33. The SQL keyword BETWEEN is used:
  1.    for ranges.
  2.    None of these
  3.    to limit the columns displayed.
  4.    as a wildcard.
 Discuss Question
Answer: Option A. -> for ranges.
Question 34. A subquery in an SQL SELECT statement:
  1.    can always be duplicated by a join.
  2.    has a distinct form that cannot be duplicated by a join.
  3.    can only be used with two tables.
  4.    cannot have its results sorted using ORDER BY.
 Discuss Question
Answer: Option B. -> has a distinct form that cannot be duplicated by a join.
Question 35. The condition in a WHERE clause can refer to only one value.
  1.    False
  2.    True
 Discuss Question
Answer: Option A. -> False
Question 36. A SELECT statement within another SELECT statement and enclosed in square brackets ([...]) is called a subquery.
  1.    True
  2.    False
 Discuss Question
Answer: Option B. -> False
Question 37. SQL provides the AS keyword, which can be used to assign meaningful column names to the results of queries using the SQL built-in functions.
  1.    False
  2.    True
 Discuss Question
Answer: Option B. -> True
Question 38. The SELECT command, with its various clauses, allows users to query the data contained in the tables and ask many different questions or ad hoc queries.
  1.    False
  2.    True
 Discuss Question
Answer: Option B. -> True
Question 39. The rows of the result relation produced by a SELECT statement can be sorted, but only by one column.
  1.    True
  2.    False
 Discuss Question
Answer: Option B. -> False
Question 40. The ADD command is used to enter one row of data or to add multiple rows as a result of a query.
  1.    False
  2.    True
 Discuss Question
Answer: Option A. -> False

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