Data that describes other data or data structures.

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6
votes
1answer
2k views

What's the difference between a v$ view and its dba_ equivalent?

What's the general difference between a v$ view and its dba_ equivalent? Take, for example, v$tablespace and dba_tablespaces.
3
votes
2answers
3k views

How can I get a list of column names and types from a resultset?

Say I get a resultset back from the following query: select * from sys.database_files; For any given resultset, I want to be able to query the column names and types so I can then create tables to ...
2
votes
2answers
777 views

How to hide metadata from Postgres users?

I need to provide views-only access to some subset of a database, for use by report-writing tools. It's easy enough to use permissions to prevent access to the data in the underlying tables, but I ...
3
votes
2answers
390 views

Searching for a Data Dictionary for SQL or Oracle

I am looking for metadata specifications (data dictionary) for SQL Server and Oracle databases. By metadata map, I mean a definitive description of what objects make up database model and their ...
22
votes
4answers
55k views

How do I list or search all the column names in my database?

I want to search for a string in the names of the columns present in a database. I’m working on a maintenance project and some of the databases I deal with have more than 150 tables, so I'm looking ...