Data Dictionary Entries

Question

Hello everybody,

I am in dire need of help on how to explain what a data dictionary record is... I've been on Google all night and couldn't find a thing.

From a few investigations I was able to find some information, which is below, but i don't know how to link them up nor find the correlation between them. The Topic I'm focusing on is DATA DICTIONARY.

What are data dictionary records?..

• Entity entries
• entity attributes entries
• dataflows entries
• process entries

Thanks for your concern.

Answer 1

The data dictionary holds meta-data for the database. That is, it stores the data which describes the database objects. So when we want to know what tables are defined in the database we query the data dictionary. When we want to know whether a table has any indexes we query the data dictionary.

You can find more details in the ever-reliable Wikipedia.