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SQLite Having clause

HAVING clause allows you to specify filter conditions will appear in the final result of the group results.

WHERE clause sets conditions on the selected column, while the HAVING clause in the grouping created by the GROUP BY clause setting conditions.

grammar

Here is where the HAVING clause in a SELECT query:

SELECT
FROM
WHERE
GROUP BY
HAVING
ORDER BY

In a query, HAVING clause after the GROUP BY clause must be placed, must be placed before the ORDER BY clause. Here is an syntax HAVING clause of a SELECT statement:

SELECT column1, column2
FROM table1, table2
WHERE [conditions]
GROUP BY column1, column2
HAVING [conditions]
ORDER BY column1, column2

Examples

Suppose COMPANY table has the following records:

ID NAME AGE ADDRESS SALARY
---------- ---------- ---------- ---------- ----------
1 Paul 32 California 20000.0
2 Allen 25 Texas 15000.0
3 Teddy 23 Norway 20000.0
4 Mark 25 Rich-Mond 65000.0
5 David 27 Texas 85000.0
6 Kim 22 South-Hall 45000.0
7 James 24 Houston 10000.0
8 Paul 24 Houston 20000.0
9 James 44 Norway 5000.0
10 James 45 Texas 5000.0

Here is an example, it displays the name of the count of all records of less than 2:

sqlite> SELECT * FROM COMPANY GROUP BY name HAVING count (name) <2;

This produces the following results:

ID NAME AGE ADDRESS SALARY
---------- ---------- ---------- ---------- ----------
2 Allen 25 Texas 15000
5 David 27 Texas 85000
6 Kim 22 South-Hall 45000
4 Mark 25 Rich-Mond 65000
3 Teddy 23 Norway 20000

Here is an example, it displays the name of the count is greater than all of the records of 2:

sqlite> SELECT * FROM COMPANY GROUP BY name HAVING count (name)> 2;

This produces the following results:

ID NAME AGE ADDRESS SALARY
---------- ---------- ---------- ---------- ----------
10 James 45 Texas 5000