Best practices are generally and informally recognized as the methods and processes that have been shown over time to be superior to those achieved by other means.

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15
votes
2answers
25k views

Database model with users, roles and rights

I have a database model with a user table and role table. I want to control the access (rights) to up to 10 different elements. The access can be granted to either a role or a single user. Below is ...
4
votes
2answers
640 views

Best way to identify orphan data?

I have a few dozen tables, that have data in them, both for the core set of data, and then the company specific data. I can never delete the core set of data, that is global for all companies. But i ...
4
votes
2answers
320 views

How to manage my own scripts

Every administrators, developers have their own collection of scripts (some patterns). Time to time they are dismissed from one job and they are employed to other one. Is there any good, easy used, ...
14
votes
6answers
23k views

What is the recommended RAID configuration for an Oracle database?

RAID (Redundant Arrays of Inexpensive Disks) comes with different configurations (RAID-0, RAID-1...). What is the recommended RAID configuration that I should set up and use when installing an Oracle ...
5
votes
2answers
429 views

Best practices to run time offset delayed replication

I want to setup replication system on postgresql like #1 MASTER SERVER and two replicated servers: #2 SERVER in realtime (for load balancing), #3 SERVER delayed with some time offset (for example 2 ...
12
votes
1answer
387 views

Best practices for connecting DBs that are in different geographical regions

We are about to set up SQL Servers in different countries. We need to link them, but we don't have to have a direct link (as in linked server). In other words, they can be loosely coupled. Is it ...
57
votes
5answers
18k views

When should I use a unique constraint instead of a unique index?

When I want a column to have distinct values, I can either use a constraint create table t1( id int primary key, code varchar(10) unique NULL ); go or I can use a unique index create table t2( id ...