The tag has no wiki summary.

learn more… | top users | synonyms

1
vote
1answer
30 views

design database with 2 simillar tables

I have a database which has product_sell and product_buy tables, these two tables are different in a few fields and each one has own comment table product_sell >---< product_sell_cmt ...
0
votes
1answer
42 views

Is it possible to execute queries in random order?

I have a list of INSERTs, UPDATEs and DELETEs queries. My problem is that I always receive them in the wrong order (random), and I cannot know their original order. Are there techniques to ...
2
votes
0answers
127 views

How would I model the Twitter lists functionality?

I'm working on an application which would mimic the Twitter Lists functionality in which someone can follow someone else. Each user can also create objects which can be followed by users. The Twitter ...
1
vote
0answers
149 views

user rights validation inside stored procedure?

You have an application with a Users table, and the Users table has various columns to indicate what rights a User has within the application. Ignoring for the purposes of this question what should ...
0
votes
0answers
43 views

A transition table, is it a good idea?

I'm writing an application that stores a project's C++ API representation. For example, I have tables like Class, Function, FunctionParameter, DerivedClass, BaseClass, and so on. Every once in a ...
0
votes
0answers
34 views

Tables with same schema in DB for different sources. Bad pattern?

The main purpose of the system being developed is to collect data from different sources, process and standardize it, and then add it to the DB. After information from all sources is collected it ...
0
votes
0answers
25 views

Database & Structure for SaaS reporting software

I'm building a SaaS application to allow users to upload data and perform reporting and analytics on it. The reporting and analytics would be quite simple like grouping and aggregating. This has ...
0
votes
0answers
16 views

How to model mappings at various levels

I'm trying to design the database model for my application and I'm finding it difficult to design the mappings for user access to various entities stored in the database. If access was only ...
0
votes
0answers
77 views

Efficient way to fetch/update X records in a loop

What I need is a simple process that handles requests. I have setup a simple table as follows: CREATE TABLE Requests ( id INT NOT NULL AUTO_INCREMENT PRIMARY KEY, request_param VARCHAR(250) ...