SELECT list is not in GROUP BY clause and contains non aggregated column sql_mode=only_full_group_by

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which is not functionally dependent on columns in group by clause.
In SQL, when using the GROUP BY clause, all columns in the SELECT statement that are not part of an aggregate function (such as SUM, COUNT, AVG, etc.) must be functionally dependent on the columns listed in the GROUP BY clause. This means that each non-aggregated column should be uniquely determined by the values in the GROUP BY columns.

If a column is not functionally dependent on the columns in the GROUP BY clause, it should not be included in the SELECT statement. Doing so would lead to incorrect or unpredictable results.

For example, consider a table named "employees" with columns "employee_id," "employee_name," "department," and "salary." If you want to find the total salary for each department, a valid SQL query would be:

sql

SELECT department, SUM(salary) AS total_salary
FROM employees
GROUP BY department;

In this query, the "salary" column is functionally dependent on the "department" column, as each salary value is uniquely determined by the corresponding department.

However, the following query would be invalid:

sql

SELECT department, employee_name, SUM(salary) AS total_salary
FROM employees
GROUP BY department;

In this query, the "employee_name" column is not functionally dependent on the "department" column. Including it in the SELECT statement would violate the rules of using the GROUP BY clause correctly and could produce incorrect results.
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