my project is that information is inserted or deleted or updated from many location but the database is in one location is this mean that database is centrilized or distrubuited

"database is centrilized or distrubuited" is just about where the data is stored. It doesn't matter where it is accessed from. So in your case it's stored in one location, so it's centralised.

ps. This is the Java forum. You question would be better in the database forum.

Centralised - database in one location
Decentralised - database on more than one CPU

There's lots of this topic online - research!

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