In a subquery, you can use group by, but your syntax is incorrect.
Wherever expressions are allowed, subqueries can be used in SELECT, INSERT, UPDATE, and DELETE statements. A subquery can be used as a table expression in the FROM clause or as one of the column expressions in a SELECT list.
An example of a typical correlated subquery is shown below. In this case, the goal is to locate all employees with salaries that are higher than the average for their department. WHERE salary >... SELECT employee number, name FROM employees emp The inner query in the above nested query must be re-executed for each employee.
It is the usage of a SELECT statement inside one of the clauses of another SELECT statement in a more formal sense. A subquery can, in reality, be contained within another subquery, which is contained within another subquery, and so on.
The subquery can be nested inside another subquery or inside a SELECT, INSERT, UPDATE, or DELETE statement. A subquery is frequently added to another SQL SELECT statement's WHERE Clause. You can use comparison operators like >,, or = to make a comparison.
All good , but provide the data also for the assignment , Without data the interest is less day by day from the course. So, try to solve this problem as asap.
Everything is good but keyboard sounds more harsh and overlap your voice whereas this course is best.
Hello sir, explaination is excellent. I have a request please send the db in excel or SQL file.
In SQL Join Function's 2nd video - Teacher's voice dose not match with background content that are plays
Mera Abhi graduation hu he Mene Mechanical Engineering BTech ki Hai me Data analysis me Apna career Bana skat ho Kya
Ashok Kumar Sonkar
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I want to assignment answer and data. excellent teach
excellent teaching technique...one of the best course content...