Difference between revisions of "TYPES"

From rbachwiki
Jump to navigation Jump to search
Line 10: Line 10:


==AVG() Returns the Average of Values ==
==AVG() Returns the Average of Values ==
SELECT AVG(cost)
FROM books;


==COUNT() Returns the number or rows ==
==COUNT() Returns the number or rows ==

Revision as of 13:53, 7 November 2017

MIN()Returns the smallest Value

SELECT COUNT(*), SUM(TOTAL_AMOUNT), MIN(TOTAL_AMOUNT) from sales;

Returns the count in one column, the sum of the total_amount column and Min amount

MAX() Returns the largest Value

SUM() Returns the sum of values

SELECT COUNT(*), SUM(TOTAL_AMOUNT) from sales;

Returns the count in one column and the sum of the total_amount column

AVG() Returns the Average of Values

SELECT AVG(cost)
FROM books;

COUNT() Returns the number or rows

SELECT COUNT(*) FROM SALES

Returns the record count

FIRST() Returns the first value of the group

LAST() Returns the last value of the group

Back To Top- Home - Category