Answers for "how to do subquery in sql"

why we use subquery in sql

We use subquery in order to get aggregate value in column without grouping data

Posted by: Guest on April-02-2021

what is subquery in sql

SUBQUERY IS NESTED QUERY INSIDE A SELECT, 
INSERT OR UPDATE METHODS. OR INSIDE ANOTHER SUBQUERY

Posted by: Guest on January-20-2021

subquery in sql

SELECT column_name
 FROM table_name1
WHERE VALUE IN 
(SELECT column_name
FROM table_name2 
WHERE condition)

Posted by: Guest on July-19-2021

subquery sql

UPDATE Book SET note= 'editore: ' + (SELECT name FROM Publisher WHERE Publisher.ID = Book.publisher)

Posted by: Guest on December-26-2020

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