Today, We want to share with you Nested Queries Subqueries in SQL Example.In this post we will show you types of subqueries in sql, hear for complex queries in dbms we will give you demo and example for implement.In this post, we will learn about nested queries in sql examples pdf with an example.
Nested Queries Subqueries in SQL Example
There are the Following The simple About Sql nested subquery, SQL suquery, nested subquery Full Information With Example and source code.
As I will cover this Post with live Working example to develop sql multiple subqueries in select statement, so the sql nested select join is used for this example is following below.
Understanding SQL Subqueries or Nested Queries
Subqueries with the SELECT Statement
SELECT * FROM members WHERE member_id IN (SELECT DISTINCT member_id FROM teams WHERE team_value > 5000);
Subqueries with the INSERT Statement
INSERT INTO premium_members SELECT * FROM members WHERE member_id IN (SELECT DISTINCT member_id FROM teams WHERE team_value > 5000);
Subqueries with the UPDATE Statement
UPDATE teams SET team_value = team_value + 25 WHERE member_id IN (SELECT member_id FROM members WHERE team_code = 360002);
Subqueries with the DELETE Statement
DELETE FROM teams WHERE team_id IN (SELECT team_id FROM team_details WHERE memeber_id = 192);
SELECT team_id,AVG(age) FROM players GROUP BY team_id HAVING AVG(age)< (SELECT MAX(AVG(min_age)) FROM teams WHERE team_id IN (SELECT team_id FROM team_history WHERE department_id BETWEEN 155 AND 455) GROUP BY team_id);
MySQL subquery in WHERE clause
SELECT memberNumber, checkNumber, amount FROM payments WHERE amount = (SELECT MAX(amount) FROM payments);
MySQL subquery with IN and NOT IN operators
SELECT membersName FROM members WHERE membersNumber NOT IN (SELECT DISTINCT membersNumber FROM teams);
MySQL subquery in the FROM clause
SELECT MAX(ages), MIN(ages), FLOOR(AVG(ages)) FROM (SELECT teamNumber, COUNT(teamNumber) AS ages FROM teamdetails GROUP BY teamNumber) AS lineitems;
I hope you get an idea about SQL Subqueries or Nested Queries.
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