Explain how the GROUP BY clause works. What is the difference between the WHERE and HAVING clauses?
What will be an ideal response?
SQL first applies the WHERE clause. Then it conceptually arranges the table based on the
grouping column(s). Next, applies the HAVING clause and finally orders the result according to
the ORDER BY clause.
WHERE filters rows subject to some condition; HAVING filters groups subject to some
condition.
You might also like to view...
When you declare a variable in the For clause, the variable stays in the computer's internal memory when the loop ends.
Answer the following statement true (T) or false (F)
What is the process for creating an InDesign library?
What will be an ideal response?
The feature that displays table column heads at the top of each page is
A. Page Header B. Repeat Header Rows C. Distribute Rows D. Distribute Columns
Which of the following connection types would be installed to provide a connection between two offices using a PSTN?
A. ISDN B. Cable C. DSL D. Satellite