Explanation: Select operation just shows the required fields of the relation. So it forms a DML 5. The basic data type char(n) is a _____ length character string and varchar(n) is _____ length character.
A. Fixed, equal
B. Equal, variable
C. Fixed, variable
D. Variable, equal
Answer:A
Explanation: Select operation just shows the required fields of the relation. So it forms a DML 5. The basic data type char(n) is a _____ length character string and varchar(n) is _____ length character.
A. Fixed, equal B. Equal, variable C. Fixed, variable D. Variable, equal
Explanation: Varchar changes its length accordingly whereas char has a specific length which has to be filled by either letters or spaces . 6. An attribute A of datatype varchar(20) has the value “Avi” . The attribute B of datatype char(20) has value ”Reed” .Here attribute A has ____ spaces and attribute B has ____ spaces .