Tagged Questions
31
votes
11answers
2k views
How could DBAs be more 'programmer friendly'?
The answers and comments on the dba.se version and programmers.se version of the question "What are the arguments against or for putting application logic in the database layer?" are very revealing ...
8
votes
2answers
1k views
Handling growing number of Tenants in Multi-tenant Database Architecture
Handling a modest number of customers (tenants) in a common server with separate databases for each tenant's instance of the application is relatively straightforward and is normally the correct way ...
6
votes
1answer
83 views
What is a good way to determine the performance I should expect from a PostgreSQL server?
Trying to figure out how I should expect my database to perform. Basically, I need to determine when the server I have set up is reaching its performance limits - which would help me plan server ...
4
votes
2answers
408 views
Creating partitions on a production database
I have a production MySQL 5.1 database that is running well but I want to improve query performances. I have never used Partitions and just going through the manuals.
I have two tables that involve a ...
4
votes
1answer
73 views
How to determine if there are [idle connections with] uncommitted transactions in PostgreSQL?
According to a comment on this question I asked about idle connections in PostgreSQL 9.2, some uncommitted transactions (possibly related to some of those idle connections) might cause
some ...
4
votes
2answers
80 views
How to properly configure PostgreSQL RAM usage?
Using PostgreSQL, we have several hundred concurrent processes doing regular database access. We have our data spread out through several database servers, each of which houses a connection pool with ...
4
votes
1answer
197 views
Speed inserts in database with a table with +47 million data per each year, containing more than 10 years?
I'm moving my database to mysql but there is one table that is pretty big (more than 47 million rows for each year) and it takes years to insert all the data.
I already tried everything I found in ...
4
votes
0answers
64 views
Does PgBouncer create a separate pool for every database config entry?
If I set up a pgbouncer.ini config file with several database entries, does pgBouncer create a separate pool for each one? I would think so, but have not been able to confirm this.
For example, ...
3
votes
3answers
114 views
Is this database fine for calculation?
I am doing an application called as Invoice Application.For that I have my database is like this.
Now my problem comes when I am taking the tax part in my database.As I have made tax as an option ...
3
votes
2answers
149 views
How can I organize my tables?
My database contains more than 200 tables. When I want to modify or insert a table, I find it difficult to find it among all those tables.
Is there any way to collect related tables in a folder ...
3
votes
2answers
246 views
What exactly is “pinning” in relation to indexes?
When one talks about "pinning" in indexes, what exactly is this? Is there some other word/term I can search for, as google has not provided any solutions.
It is part of a test question, where ...
3
votes
3answers
804 views
Suggestion required for Large Database Optimization and performance
We are creating a large database with estimated growth rate 200 million+ records per annum. The database is use for analysis purpose and we will generate different tabular and graphical reports from ...
3
votes
1answer
64 views
Could too many idle connections affect PostgreSQL 9.2 performance?
Some queries on my database server seem to take a long time to respond, and I believe the CPU usage is high. When running ps aux, I see ~250 "idle" connections (which I believe to be too many). I ...
3
votes
0answers
23 views
Does avg_query for PgBouncer include update and inserts?
Trying to tune our application and would like to know if the stats data that pgBouncer shows as avg_query, according to the PgBouncer docs on usage:
avg_query
Average query duration in ...
2
votes
2answers
444 views
Generalisation in databases
I am working on a Hospital Management project in DB2. I have one table for staff with a primary key of staff_id. The hospital has to have different staff... e.g doctors,nurses,e.t.c.
Is it better to ...
2
votes
2answers
94 views
which option is better for not slow down the performance of queries?
I am developing a system that records customer payments, when a customer makes a payment, the system must update the account and show the payment made and all previous payments, is here when the ...
2
votes
2answers
107 views
Database structure for a system with multisite
The system I'm working is structured as below. Given that I'm planning to use Joomla as the base.
a(www.a.com),b(www.b.com),c(www.c.com) are search portals which allows user to to search for ...
2
votes
3answers
134 views
Merging tables with a 1 to 1 relationship in a database
Is it a good idea to merge two tables that have a 1..1 relationship together?
I have inherited a database with too many tables linked together in a 1..1 relationship. I'd like to evaluate the ...
2
votes
2answers
681 views
Unknown Db file format - best way to find out?
A client has given me the data he wants visualised in my project - but I don't know what DB format it's in. He's pretty unclear, also..
I have access to the table structures, but don't know how to ...
2
votes
1answer
667 views
What is the best database design for multi-language data?
I am designing a multi-language database for a piece of software with the following features:
data used in every country differs from other countries
data used in every country will be in 2 ...
2
votes
2answers
230 views
Help with Vehicle Service database
I am using the Desktop Vehicle Maintenance template in access, but i am trying to cater it towards our farms needs.
We will be keeping track of the service's done on Trucks, Tractors, Equipment, etc.
...
2
votes
0answers
54 views
How to execute a non-table-locking update operation on PostgreSQL? [closed]
Looking for a good way to update the value on a column for all the rows in a database (not huge, but big enough - about 10M records), without locking the whole table, so operations can continue while ...
2
votes
0answers
70 views
How to properly configure pgBouncer transaction level pooling?
What is a good way to determine the number of available transaction connections when using pgBouncer to pool database connections? Also, how should I determine the number of max_connections and ...
2
votes
4answers
155 views
MySql Database solution for specific web app problem
Well, I need to create a comment system for posts that people add to my web app. This web app is just like facebook or myspace posts. Users add posts and people can comment on them. But the problem is ...
1
vote
1answer
68 views
Tables of a huge database
When I work on a huge database, and after following normalization rules, I found that I have many tables for each part of my huge database. That makes me worry about the final number of tables, it ...
1
vote
1answer
29 views
Adding users to a list and sort by category?
I'm using SQL-Server 2012 and I would like to know how to solve this program.
So:
I want to create a page that allows admins to manage a project, and part of it, would be to add members/employees to ...
1
vote
1answer
100 views
a question in tables relations
Table A is linked to Table B , and Table B is linked to Table C using primary and foreign keys
My questions:
Should i link Table A to Table C too?? Or Table B can act as intermediate link between ...
1
vote
3answers
134 views
Database Design Relationship for Patient Visit in MS Access
I am designing a database to store records for research purposes, and I am having trouble picturing how I can create a relational database based on the information I have.
There are a total of 6 ...
1
vote
1answer
66 views
Public Database for Mobile Application
What are the proper steps to hosting a public database. Currently I a building a mobile application with Adobe Flash Builder. I have used Microsoft SQL Server, My SQL as well as WAMP Server. All of ...
1
vote
1answer
142 views
mysql session logging tables
I've been building a session logging system for our sites. We get around ~15m hits a year and at the moment we're really only interested in stats about people who logon to our sites.
Our table ...
