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Consider the table ‘Teacher’ given below.

Teacher Department periods
T101 SCIENCE 32
T102 NULL 30
T103 MATHEMATIC
S
34

What will be the output of the following queries on the basis of the above table :

(i) Select count(Department) from Teacher ; 

(ii) Select count (*) from Teacher ;

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(i) Select count(Department) from Teacher ;

(ii) Select count (*) from Teacher ;

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