Author Question: Since Microsoft Access is a personal database, it is not subject to the modification problems that ... (Read 61 times)

Medesa · **on:** Jul 7, 2018

Since Microsoft Access is a personal database, it is not subject to the modification problems that occur in other relational databases.

Indicate whether the statement is true or false

Question 2

Distinguish between Char and VarChar data types.

What will be an ideal response?

krakiolit · **Reply #1 on:** Jul 7, 2018

Answer to Question 1

FALSE

Answer to Question 2

Char data type is fixed length, so that no matter what the actual length of the data entered is, it will always take exactly the same storage space. For example, Char(10 ) indicates that 10 characters will always be stored for each value of that column. If the actual data entered is less than the specified fixed length, the data will be padded with blanks. VarChar data type is variable length so that only the amount of space actually needed to store the data is used. Although VarChar may be more efficient in its use of space, it is not always preferred. VarChar requires the storage of some extra data to indicate the length of the data values, plus it requires some extra processing by the DBMS to arrange the variable length data.