Question
Which one of the following is the correct
statement?Solution
• Spring tides occur on full moon and new moon days. Hence, option A is the correct answer. • Neap tides occur near the time when the Moon and the Sun are in quadrature. Hence, option B is incorrect. • West coast of India experiences tides twice a day. • Tides do occur in Gulfs as well.
Which type of index physically reorders the data rows in the table itself based on the index key, meaning the data is stored in the order of the index?
Recursive CTEs are mainly used for:
To rename a column in a SELECT query result, you use:
Which PL/SQL cursor attribute returns `TRUE` if the most recent `FETCH` statement returned a row, and `FALSE` otherwise?
Which of the following is a key characteristic that distinguishes a PL/SQL `FUNCTION` from a PL/SQL `PROCEDURE`?
Which SQL keyword prevents duplicate rows in result?
Which operator is used to combine results of two SELECT queries and remove duplicates?
What is the result of SELECT COUNT(NULL) on any table?
Which of the following SQL constructs avoids returning duplicate rows?
What is a 'stored procedure' in SQL?
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