SAP DB Featuers

From: Kaare Rasmussen <kar(at)webline(dot)dk>
To: "'pgsql-hackers(at)postgresql(dot)org'" <pgsql-hackers(at)postgresql(dot)org>
Subject: SAP DB Featuers
Date: 2001-04-29 08:27:11
Message-ID: 01042910271102.09277@bering
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I found it myself:

SQL Features
- SQL 92 entry level with several extensions
- Oracle 7 compatibility mode

Key benefits

- Referential integrity (to be defined in CREATE TABLE or ALTER Table
statement)
- Stored procedures
- After statement trigger (INSERT/UPDATE/DELETE)
- Updateable views, although not every view is updateable
- Datatype BOOLEAN
- A number of functions including functions for date values
- Maximum length of object names is 32 characters
- Subtransactions
- Sequences (number generator)
- Roles (compositions of user authorizations that can be granted/revoked as a
whole)
- Subselects that can be specified in the FROM clause of a query
- Outer joins
- Scrollable cursor
-Temporary tables that will be destroyed if the application ends the session
These tables can be created within a stored procedure and selected from
outside this procedure. They are updateable, although there is no implicit
update of the rows that created the temporary table.
-Explicit and implicit locking on row level

NOT supported features:
- Collations
- Result sets that are created within a stored procedure and fetched outside.
This feature is planned to be offered in one of the coming releases.
Meanwhile, use temporary tables.
- Multi version concurrency for OLTP
It is available with the object extension of SAPDB only.
- Hot stand by
This feature is planned to be offered in one of the coming releases.

Enterprise Features
- The Microsoft cluster server is supported. For other systems scripts have
to be written according to the failover solution of the system.
- Online backup
- Online expansion of the database
- No explicit reorganization

- Supported backup tools:
-- ADSM + adint2
Networker
Netvault, HiBack
(soon) Backint for Oracle
Tools supporting this interface are: ARCserve, Backup Express, dbBRZ for
R/3, DBVAULT, DoroStore, EASY_BASE, EMC, EPOCH, FDR/UPSTREAM, HIBACK,
HSMS-CL Backint, NetBackup, NetVault, NetWorker, Omniback, Seagate Backup,
SESAM, Solstice Backup, Sys-Save, TIME NAVIGATOR for R/3,
Tivoli

Programming Interfaces
- ODBC
- C/C++ Precompiler (Embedded SQL)
- JDBC
- Perl DBI
- Python
- PHP

--
Kaare Rasmussen --Linux, spil,-- Tlf: 3816 2582
Kaki Data tshirts, merchandize Fax: 3816 2501
Howitzvej 75 Åben 14.00-18.00 Email: kar(at)webline(dot)dk
2000 Frederiksberg Lørdag 11.00-17.00 Web: www.suse.dk

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