Hi everyone!

I really need help from you.
I need to get info about progress, i need to know about:

- Its internal data organization
- Special data types
- Diccionary structure
- Concurrency control
- Security control
- Administration tools
- Inter architecture
- DDL
- DML

That's a lot uh?
Any help is welcome.

Hi,
1. internal data organization and data structure:
http://www.peg.com/techpapers/monogr...ma/schema.html

2. data types:
decimal, character, integer, date, logical, recid.

3. concurrency control:
3 modes of retrieving records: NO-LOCK - equivalent of READ_UNCOMMITTED transaction isolation level, SHARE-LOCK - equivalent of REPEATABLE_READ; EXCLUSIVE-LOCK - equivalent of SELECT ... FOR UPDATE.

4. DDL
There is no DDL. You can modify logical db structure by loading *.df file with schema changes definitions.

5. Very efficient, far more better than SQL-92 standard. I think that you need documentation for Progress as ypou mentioned very broad range of subjects concerning Progress technology.

Regards
Bogdan