0
votes
0answers
13 views

Reducing schema to shrink real-world data to a functional subset

I work with two editions of a shipping product; call them "A" and "B". Both use similar a database schema, but edition "B" has a strict super-set of the schema (and features) used for edition "A". ...
3
votes
4answers
2k views

Open source tools for Oracle schema compares

I'm looking for an open source tool to generate DDL scripts. Many tools call these synchronization scripts. We essentially want to compare schema of different environments (ie: DEV to QA, QA to ...
1
vote
1answer
464 views

Oracle schema migration to new database with zero downtime

I have a problem: I have two production schemas on one database each serving two different appplicaitons. I need to migrate (move) one schema to an entirely new database that will be dedicated for ...
2
votes
1answer
303 views

.NET SQL Server Authentication Schema issue

I am currently working on a project for a client. The application is written in ASP.NET C#. The Database used is SQL Server 2008. The project has been to migrate the old Oracle database to a new SQL ...
0
votes
1answer
349 views

Tools for synchronizing database schema with Oracle, SQL-Server and Netezza databases

I'm looking for software tools to move database schema for Oracle, SQL Server and Netezza. We use Oracle for our ODS, Netezza for our Data Warehouse (for it's bulk loading capabilities) and SQL ...
2
votes
1answer
552 views

copy schema across different physical databases in db2

Is there any way to programatically copy across schema (i.e. tables,functions,views) etc from one database over to another one. Assuming both are running same versions of DB2. I found a few utilities ...
17
votes
1answer
4k views

Best practices for schema changes and data migrations to a live database without downtime?

How do you make schema changes to a live database without downtime? For instance, lets say I have a PostgreSQL database with a table including various user data like email addresses etc, all ...