Why is it better to use a relational database instead of a flat file database?

"margin-bottom:.0001pt;line-height:normal;">Relational database has

many advantages over the flat file database:

"margin-bottom:.0001pt;line-height:normal;">1. Avoids data

duplication.

"margin-bottom:.0001pt;line-height:normal;">2. Avoids inconsistent

records.

"margin-bottom:.0001pt;line-height:normal;">3. Easier to change

data.

"margin-bottom:.0001pt;line-height:normal;">4. Easier to change

data format.

"margin-bottom:.0001pt;line-height:normal;">5. Data can be added

and removed easily.

"margin-bottom:.0001pt;line-height:normal;">6. Easier to maintain

security.