PostgreSQL_CE
PGCES-02 · Question #138
Select one incorrect statement concerning the following SQL statement. CREATE OR REPLACE VIEW sales_view AS SELECT * FROM sales_table ORDER BY sales_date DESC LIMIT 10;
The correct answer is D. Some errors occur when "SELECT * FROM sales_table" is executed after the view is defined. See the full explanation below for the reasoning.
Question
Select one incorrect statement concerning the following SQL statement. CREATE OR REPLACE VIEW sales_view AS SELECT * FROM sales_table ORDER BY sales_date DESC LIMIT 10;
Options
- ADefines the view called "sales_view".
- BReplaces "sales_view" if it already exists.
- CWhen you 'SELECT' the "sales_view", it displays the first 10 records from the "sales_table"
- DSome errors occur when "SELECT * FROM sales_table" is executed after the view is defined.
- EYou can confirm that the "sales_view" has been added by querying the view called "pg_views".
How the community answered
(29 responses)- B3% (1)
- C3% (1)
- D83% (24)
- E10% (3)
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