The database-development tag has no wiki summary.
0
votes
3answers
153 views
How to maintain user relationship when user unfollows another user
I have a table of user relationship which stores who follows whom, the table structure is as follows
-id
-follower
-following
when someone follows any other user, I add a record with follower user ...
-1
votes
0answers
16 views
Create a bucket in riak cluster [migrated]
I have three virtual machines and I try to create a simple cluster with the java application riak. So i add the three Virtual machines to my client without any problem but when i try to create a ...
3
votes
3answers
129 views
Are database developers considered under DBA jobs?
This isn't career advice, this is more of a question of logistics.
When looking at job market and such there is a lower than what I think would be out there of database admins but I'm curious if ...
3
votes
1answer
161 views
Database Schema Usage
I have a question regarding the appropriate use of SQL Server database schemas and was hoping that some database gurus might be able to offer some guidance around best practice.
Just to give a bit of ...
-1
votes
2answers
483 views
Fitting it together, database, reporting, applications in C#
Introduction
Preamble
I was hesitant to post this, since it's an application whose intricate details are defined elsewhere, and answers may not be helpful to others. Within the past few weeks (I was ...
4
votes
5answers
3k views
What are the advantages of myBatis over Hibernate?
This question originates from a comment I received on one of my questions -
I'd rather drop hibernate in favor of mybatis instead of jdbc
I've done some research on my own and understand the ...
5
votes
4answers
397 views
How do you keep track of the meaning of your SQL fields?
The more SQL fields I add to my tables and the more primary/foreign keys I add the more I lose the overview for specific fields for certain scenarios like Get/Add/Delete/Update data.
I use SQL ...
2
votes
1answer
146 views
In-memory DB to perform intersects on set slices
I have a specific programming need where I need to efficiently store large sorted sets in memory, query them for ranges, and intersect them against other sets that are also queried for ranged.
I am ...
2
votes
2answers
537 views
Development environment to manage multiple Oracle databases
I am in an enterprise environment where we have applications that need to run against multiple Oracle databases. Developers may need to manage multiple vintages of these databases to support ...
9
votes
2answers
866 views
Conflict resolution for two-way sync
How do you manage two-way synchronization between a 'main' database server and many 'secondary' servers, in particular conflict resolution, assuming a connection is not always available?
For example, ...
2
votes
5answers
192 views
Organizing my products database
I’m developing a web-based store in MVC (very closely based on the SportsStore example in Pro ASP.Net MVC 3 Framework http://www.powells.com/biblio/61-9781430234043-0).
I’m using a SQL database and ...
1
vote
2answers
260 views
How can I avoid concurrent access in PostgreSQL?
I would like to have your opinion, how I can handle the case when PDO engine and Hibernate engine "talk" to the same db? There is a PHP application as frontend, and a Java doing some job after user ...
1
vote
2answers
231 views
Handle all authentication logic in database or code?
We're starting a new(ish) project at work that has been handed off to me. A lot of the database sided stuff has been fleshed out, including some stored procedures. One of the stored procedures, for ...
11
votes
2answers
3k views
Best practice/Patterns for two way data synchronisation
Quite often in my work the idea of 2-way data synchronisation between database systems crops up. The classic example is two slightly different CRM systems (say, Raiser's Edge and Salesforce) and the ...
9
votes
4answers
471 views
How do I Integrate Production Database Hot Fixes into Shared Database Development model?
We are using SQL Source Control 3, SQL Compare, SQL Data Compare from RedGate, Mercurial repositories, TeamCity and a set of 4 environments including production.
I am working on getting us to a ...
0
votes
3answers
163 views
database migration: upgrade schema deployed on client machines
I'm working on an application, which when deployed is installed locally on client machines, and uses a local database server. Stupidly, I didn't plan for schema changes -- and now it needs to change.
...
2
votes
1answer
311 views
Querying key/value store
I don't know whether this question is reasonably answerable (and therefore will be closed), but I will take my chances: What are the possible problems (and solutions), one might encounter, when ...
20
votes
8answers
3k views
Create my own database system [closed]
I need to learn how databases work in order to use them more efficiently, and my way of learning is by doing.
I want to create my own database system. I am not referring to creating a pseudo-database ...
2
votes
3answers
301 views
What advantages do we have when creating a separate mapping table for two relational tables
In various open source CMS, I have noticed that there is a separate table for mapping two relational tables. Like for categories and products, there is a separate product_category_mapping table. This ...
2
votes
3answers
813 views
How to design a database wherein multiple tags(string) are to be associated with an id?
I have to design a database wherein I have to associate an audio_id with multiple tags(words). I am considering following approaches to select one from these:
1) To have multiple fields for multiple ...
6
votes
3answers
163 views
Are there best practices for checking for errors in business logic for DB refreshes?
I'm working for a company with very large databases which all refresh overnight, ready for users to interrogate in the morning. These over night loads essentially truncate all the tables, and reload ...
5
votes
5answers
387 views
Should I use a relational datamodel or Cassandra with ColumnFamily based indexes?
Currently we are working on some storage problems for log data from various servers and communication message logs (HTTP(S), XMPP). There will be many write operations and for read operations we will ...
5
votes
7answers
394 views
Should there be separate database schemas for each developer or should there be just one that all developers share?
During development, should developers each have their own copy of the database to work on ? Or should there be a common shared development database ?
The former will give developers more flexibility. ...
5
votes
4answers
244 views
Constant database calls or store in objects?
I'm creating a pretty simple database driven application. Whenever I create a db app, I create classes that mimic the data in the db. Is this good practice?
Am I better off making one big call to the ...
5
votes
11answers
1k views
Over normalization in database
Currently I am working on creating a new database schema as part of a major new product. Our previous customer address records (in a previous product) look something like this in our current schema ...
3
votes
1answer
391 views
Database Application Design Best Practices
Once upon a time it was common practice for both the business logic and database logic to be written in the same language (eg PL/SQL, Transact SQL, etc), more recently the practice is to separate the ...
9
votes
6answers
1k views
Isn't SQLite a bit underestimated? [closed]
Before I ask the question, let me first describe my thoughts about SQLite.
I happen to like tools that are small, fast and, more importantly, have only the really necessary functionality. That's why ...
9
votes
8answers
1k views
Is writing your own Data Access / Data Mapping Layer a “good” idea?
We're currently in a situation where we have a choice between using an out-of-the-box object-relational mapper or rolling our own
We have a legacy application (ASP.NET + SQL Server) where the ...
8
votes
2answers
2k views
How can I keep my visualstudio database project in sync with my database?
I'd like to have my database schema synchronized with my Visual Studio .dbproj database project.
Right now, I'm using SSMS for most of my database development work, and I've to manually use the ...
2
votes
5answers
1k views
Real-time stock market application
I'm an amateur programmer. I'd like to develop a software application (like Tradestation), to analyse real-time market data. Please teach me if the following approach is correct, ie the procedures, ...
