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- Question
A subquery in an SQL SELECT statement is enclosed in:
Options- A. braces -- {...}.
- B. CAPITAL LETTERS.
- C. parenthesis -- (...) .
- D. brackets -- [...].
- Correct Answer
- parenthesis -- (...) .
- 1. SQL query and modification commands make up a(n) ________ .
Options- A. DDL
- B. DML
- C. HTML
- D. XML Discuss
- 2. To define what columns should be displayed in an SQL SELECT statement:
Options- A. use FROM to name the source table(s) and list the columns to be shown after SELECT.
- B. use USING to name the source table(s) and list the columns to be shown after SELECT.
- C. use SELECT to name the source table(s) and list the columns to be shown after USING.
- D. use USING to name the source table(s) and list the columns to be shown after WHERE. Discuss
- 3. A subquery in an SQL SELECT statement:
Options- A. can only be used with two tables.
- B. can always be duplicated by a join.
- C. has a distinct form that cannot be duplicated by a join.
- D. cannot have its results sorted using ORDER BY. Discuss
- 4. The command to eliminate a table from a database is:
Options- A. REMOVE TABLE CUSTOMER;
- B. DROP TABLE CUSTOMER;
- C. DELETE TABLE CUSTOMER;
- D. UPDATE TABLE CUSTOMER; Discuss
- 5. In an SQL SELECT statement querying a single table, according to the SQL-92 standard the asterisk (*) means that:
Options- A. all columns of the table are to be returned.
- B. all records meeting the full criteria are to be returned.
- C. all records with even partial criteria met are to be returned.
- D. None of the above is correct. Discuss
- 6. SQL data definition commands make up a(n) ________ .
Options- A. DDL
- B. DML
- C. HTML
- D. XML Discuss
- 7. The Microsoft Access wildcards are ____ and ____ .
Options- A. asterisk (*); percent sign (%)
- B. percent sign (%); underscore (_)
- C. underscore(_); question mark (?)
- D. question mark (?); asterisk (*) Discuss
- 8. ON UPDATE CASCADE ensures which of the following?
Options- A. Normalization
- B. Data Integrity
- C. Materialized Views
- D. All of the above. Discuss
- 9. The wildcard in a WHERE clause is useful when?
Options- A. An exact match is necessary in a SELECT statement.
- B. An exact match is not possible in a SELECT statement.
- C. An exact match is necessary in a CREATE statement.
- D. An exact match is not possible in a CREATE statement. Discuss
- 10. The SQL -92 wildcards are ____ and ____ .
Options- A. asterisk (*); percent sign (%)
- B. percent sign (%); underscore (_)
- C. underscore(_); question mark (?)
- D. question mark (?); asterisk (*) Discuss
Introduction to SQL problems
Search Results
Correct Answer: DML
Correct Answer: use FROM to name the source table(s) and list the columns to be shown after SELECT.
Correct Answer: has a distinct form that cannot be duplicated by a join.
Correct Answer: DROP TABLE CUSTOMER;
Correct Answer: all columns of the table are to be returned.
Correct Answer: DDL
Correct Answer: question mark (?); asterisk (*)
Correct Answer: Data Integrity
Correct Answer: An exact match is not possible in a SELECT statement.
Correct Answer: percent sign (%); underscore (_)
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