group by in sql
GROUP BY: is used to collaborate
with the SELECT statement to arrange
matching data into groups.
ORDER BY: is for sorting result
either in descending or ascending order.group by in sql
GROUP BY: is used to collaborate
with the SELECT statement to arrange
matching data into groups.
ORDER BY: is for sorting result
either in descending or ascending order.group function in sql
--- GROUP FUNCTION | MULTI ROW FUNCTION | AGGREGATE FUNCTION
--- COUNT , MAX , MIN , SUM , AVGsql group by example
SELECT column_name(s)
FROM table_name
WHERE condition
GROUP BY column_name(s)
HAVING condition
ORDER BY column_name(s);group by clause in ms sql
/*Group by clause is used to group a selected set of rows into a set of summary
rows by the values of one or more column or expression. It is always used in
Conjunction with one or more aggregate function.*/
SELECT AGGREGATE_FUNCTION(Column_Name) FROM Table_Name
/*Group by exmaple*/
SELECT city, sum(Salary) as TotalSalary FROM tblEmployee GROUP BY CityGROUPING Functions
-- It accepts a single column as a parameter and returns "1"
-- if the column contains a null value generated as part of a
-- subtotal by a ROLLUP or CUBE operation or "0" for any other value,
-- including stored null values
SELECT fact_1_id,
fact_2_id,
SUM(sales_value) AS sales_value,
GROUPING(fact_1_id) AS f1g,
GROUPING(fact_2_id) AS f2g
FROM dimension_tab
GROUP BY CUBE (fact_1_id, fact_2_id)
HAVING GROUPING(fact_1_id) = 1 OR GROUPING(fact_2_id) = 1
ORDER BY GROUPING(fact_1_id), GROUPING(fact_2_id);GROUP BY
SELECT <field1, field2, field3…>
FROM <table1_name>
WHERE <condition/expression>
GROUP BY <field1, field2, field3…>Copyright © 2021 Codeinu
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