All of these

2 and 4

1 and 3

1, 3 and 4

It will return

names where number of characters in names are greater than or equal to 6

It will give an

error

It will return

names where number of characters in names are greater than 6

It will return

names where number of characters in names are less than or equal

to 6

The result is converted to a NULL.

The first value is returned.

The last value is returned.

The query fails at run time.

OR

has a higher precedence than AND;

We must use parentheses for each condition

AND has a higher precedence than OR;

RDBS

will return an error.

Yes

No

SELECT Dept_ID, Job_ID, AVG(Salary) FROM

Employees GROUP BY Dept_ID

SELECT Dept_ID, Job_ID, AVG(Salary) FROM Employees GROUP BY Dept_ID, Job_ID

SELECT AVG(Salary) FROM Employeees GROUP BY Dept_ID

SELECT Dept_ID, AVG(Salary) FROM Employees GROUP BY Dept_ID

Аpplicаtion lаyеr

Sеssiоn lаyеr

Dаtа Lіnk lаyеr

Рhysiсаl lаyеr