Nested Queries Subqueries In SQL Example

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

Contents

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);

SQL Code:

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;

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Nested Queries Subqueries in SQL Example