Exercise : Oracle SQL PLSQL MCQ Questions and Answers
Question 1
SQL data definition commands make up a(n) ________ .
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Correct Answer : A. DDL
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Question 2
With this type of SQL Server cursor concurrency no lock is obtained until the user updates the data.
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Correct Answer : C. OPTIMISTIC
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Question 3
Which JDBC driver Types are for use over communications networks?
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| B. |
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Correct Answer : A. Both Type 3 and Type 4
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Question 4
What MySQL property is used to create a surrogate key in MySQL?
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Correct Answer : B. AUTO_INCREMENT
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Question 5
To remove duplicate rows from the results of an SQL SELECT statement, the ________ qualifier specified must be included.
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Correct Answer : B. DISTINCT
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Question 6
Which of the following is true concerning systems information in an RDBMS?
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| D. |
Correct Answer : C. All of these.
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Question 7
To update an SQL view, the DBMS must be able to associate the column(s) to be updated with:
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| D. |
Correct Answer : B. a particular row in a particular underlying table.
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Question 8
How many copies of a JSP page can be in memory at a time?
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| B. |
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| D. |
Correct Answer : D. One
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Question 9
A UNION query is which of the following?
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| D. |
Correct Answer : D. Combines the output from multiple queries and must include the same number of columns.
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Question 10
Which of the following is not a factor in determining the concurrency control behavior of SQL Server?
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| B. |
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| D. |
Correct Answer : A. Lock level
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