A database is any organized collection of data organized to provide efficient retrieval.

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error in dataSearch using berkley DB [closed]

I've created a database using Berkley DB that stores N records where a record is a key/value pair. I originally populated it with only 20 records. With 20 records I managed to do a Key Search, and a ...
5
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1answer
62 views

A Simple Cache class

“There are only two hard things in Computer Science: cache invalidation and naming things.” -- Phil Karlton That being said, I created this SimpleCache class which I intend to use to cache ...
1
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0answers
35 views

In-memory data cache architecture

I am designing basic in-memory cache storage with thin CRUD (actually CRD) interface. The design is inspired by the Backend solutions such as Parse and StackMob. Main requirements: Cache consists ...
1
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2answers
63 views

Sql Database design Ecommerce

OK so am new to database design but am fairly familiar with SQL and its syntax. I want to create a database for an E-commerce website that will sell a single product type such as a shirt. They could ...
4
votes
2answers
122 views

Implementation of OOP for retrieving list of objects from database

If I have a Person class that outlines the properties of a person and one of People that just contains a List<Person> like so: public class Person { public Person(){} public int ...
0
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1answer
45 views

API request and database insert

This is a pretty big undertaking for me with my basic skills, and I was kind of flying blind. It's basic in its intent: get a bunch of case info from a helpdesk app and put it into a database. There ...
0
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0answers
101 views

Is this code Pythonic?

The code uses SQLAlchemy Core. However, what I want to know is if writing code in this pattern is recommendable. def saveUser(self, user): """ Inserts or updates a user in database. The ...
2
votes
1answer
109 views

Builder pattern for Codeigniter ActiveRecord queries

I am using Codeigniter and it's ActiveRecord. I had this idea for a base class that provided a generic getter/setter for doing simple queries on a database. I have a lot of database objects that ...
4
votes
2answers
100 views

Optimizing join statement

I have this piece of code: List<myItem> items = (from x in db.myItems join y in db.tblParents on x.item_parent equals y.id where !y.hidden ...
2
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1answer
106 views

Building a simple database in Python

I choose to use a dictionary to store the variables for fast GET and SET commands. In my code, I have saved all of the open transactional blocks in memory. I can't see any way around this since it ...
1
vote
1answer
249 views

PDO class for multiple databases

I have PDO class below: class DB { private $dbh; private $stmt; static $db_type; static $connections; public function __construct($db, $id="") { ...
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0answers
26 views

First Schema for Location and Countries

This is my first MYSQL schema for caching location data (co-ordinates to place names) and referencing it with a country. I was wondering what everyones feedback was on it, did I do a good job? ...
2
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1answer
2k views

Very simple PHP PDO class

There are many PHP PDO classes out there, agreed. However I find they do not allow for flexibility. So I created one that helps reduce development time as little as it may be but it does the job ...
0
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1answer
151 views

guide me to make my code perfect

I had made some of pages and they work but I'm not sure if I coded it in best way so I want your suggestions and ideas to make my code better. connection.php <?php $mysql_host = ...
1
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1answer
72 views

Generic DB Value Getter

I'm trying to see if there is a better way to do this when I just need one column with one row. Do not mind the lack of use of a prepared statement, I will put it in. public <T> T ...
5
votes
1answer
134 views

MySQL one-to-many relationship - is this the right way?

I'm currently working on a logfile parser for a pretty old videogame called 'Team Fortress Classic' which can be compared to Counter-Strike 1.6 and is available on Valve's Steam platform. I started ...
3
votes
2answers
105 views

Querying a database with PHP

I'm new to PHP programming. I would love some feedback on this simple code I wrote which queries a database based on some arguments supplied by a user and returns an HTML table displaying the data. ...
1
vote
1answer
59 views

User Data Security Improvements

** Original Question From Stack Overflow ** I'm working on my site, and need help knowing what I need to do to improve the security of my login system. If you feel so inclined, I would love some ...
1
vote
1answer
94 views

Need your opinions on my database normalization attempt

I'm working on a project with CakePHP where it will allow users to log their drug use. Be it alcohol, caffeine, or whatever else. When people add a log, they select the substance from a drop down, ...
2
votes
3answers
92 views

Improve my SQL select statement

I have three tables for a blog system. The blog CREATE TABLE IF NOT EXISTS lm_blog( blog_id INT UNSIGNED NOT NULL AUTO_INCREMENT, title VARCHAR(80) NOT NULL UNIQUE, action ...
5
votes
1answer
390 views

Generic method for database calls

Background Breaking from MVC, I've implemented the following architecture: POST/GET ➤ PHP ➤ Database Calls ➤ XML ➤ XSLT ➤ HTML All database interactions are relegated to the call method in the ...
0
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1answer
90 views

Database “design” using Symfony2 and Doctrine2

I'm working on an application, which tracks expenses. I have users. Each user can create his categories for the expenses (like Food, Bills, Transport, Drinks, Clothes) and then create expenses - each ...
3
votes
1answer
881 views

asp.net (vb.net): handling of open database connection and calling shared function from web api

I'm working on an ASP.NET project using VB.NET that uses Dapper and the code as implemented so far runs fine with just me testing. In the example below, Dapper calls a stored proc. But my I am ...
0
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0answers
211 views

Android database access

For my simple Android application I don't want to use an ORM, anyway I'd like to have a db-communcation layer easy to user, to read and efficient. This is my solution: every entity (ex: Person) as an ...
2
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1answer
142 views

DAO Layer Code Review

Please review my following code for DAO layer. public List<Channel> getListOfChannels() throws DataAccessException { // will have the channel in form of List // to hold the ...
1
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1answer
129 views

Keeping track of people's relationships in MySQL using a people relation table?

I am trying to track relationships among people. I came up with my own solution, but wondering if there might be another way or better way of doing this. To keep it simplified, I'll post just the bare ...
2
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1answer
200 views

Testing database table creation with NUnit

I'm new to using NUnit and have written a test to check for the existence of a database table. I have the below code that should check whether a new table named NewTable has been created in the ...
2
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1answer
52 views

ORM Entity with many similar relationships

To provide some background context, I'm implementing a web-based solution (Java, Spring, Hibernate) that allows the creation/authoring of task-centric workflow documents. Basically a workflow ...
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2answers
117 views

Make code looks more cleaner in the run method

I am trying to insert into Database using JDBC and each thread will be inserting into database. I need to insert into around 30-35 columns. I wrote a Stored procedure that will UPSERT into those ...
3
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3answers
67 views

Simplify things in the run method to look cleaner

I am trying to insert into Database using JDBC and each thread will be inserting into database. I need to insert into around 30-35 columns. I wrote a Stored procedure that will UPSERT into those ...
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2answers
176 views

PHP Class Inheritance / Object Instantiation / Object / Property Scope w/ Child / Parent Classes & Dependency Container Class

In PHP, I have a parent/child class and am using dependency container to load them. I am trying to use the same database connection on all of them without duplicating the object. CLARIFICATION: MY ...
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2answers
136 views

First Database Schema - How did I do?

I would really like some advice from any DB gurus who have a few minutes free. After doing some reading and playing with sqlfiddle over the weekend I have constructed this postgresql schema and it is ...
1
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1answer
639 views

Nhibernate session and transaction implementation

In order to create loose coupling architecture on my web applications, I have created my own implementation for orm, in this case, nhibernate. I want you please to review the code and tell me if you ...
1
vote
1answer
109 views

How to write a stable WCF service

I'm writing a WCF service for validating password and getting company ID for the clients that requests the services. The service runs on a server locally as a windows service, which sends queries to ...
0
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2answers
133 views

Backup a database over an SQL connection

Developing some industrial WinForms application for some industrial setting, I wanted to provide users of our software with a convenient way to back up the database the software uses (to send it to ...
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1answer
93 views

Building database from file C# Mysql

well as the question reads I am building a database with 3 tables. Now these tables are going to be used to store names in. Table 1 will store First Names Table 2 will store Last Names Table 3 ...
2
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1answer
1k views

Rails 3: How can I improve this ActiveRecord count

Here I retrieve a collection of causes from the database. Along with the information from each cause, I want to send the number of users in each cause. This way works, but if experience has told me ...
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1answer
120 views

Connects to database but cannot get table [closed]

I use this php code to connect to my databse and retrieve the table food. I am able to connect to the database but no retrieve the table. I get this as a result: Host information: site.ipagemysql.com ...
2
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1answer
126 views

Improve and adding new method to GenericDataAccess?

I have this GenericDataAccess class to interact with database from my school just I want to ask for some suggestions and advice in how to to improve it and add new methods to for future use & ...
3
votes
2answers
123 views

Javascript Coding Wager

I have two scripts written by my co-workers for auto-filling a form with information from the facebook graph-api. I am trying to figure out which has been coded in a more efficient style? This is the ...
0
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3answers
61 views

What is the best way to save this? (saving the data generated by an application) [closed]

I have this code, and i want to save the generated data, but i don't know how, A database? a file? do i need to chance everyting in the code and start over again? I'm from brazil, so the variables ...
2
votes
1answer
1k views

reusable data access class in C#

Below is my attempt at the beginnings of a reusable ado.net data access class. Please let me know of any improvements that I could make. Thanks! public class DataAccess : IDisposable { ...
5
votes
1answer
551 views

PHP Login Authentication with BCrypt

So I have a php authentication script and everything works fine. But I'm very unsure about the way I programmed it (i hardcoded some stuff) and I was hoping stack could look through this and point out ...
2
votes
2answers
254 views

My database schema [on hold]

I'm not sure if this would be okay to put here since it doesn't have code to look at, but this is my database I'm trying to create for an online firearm store. I'm new to database design and ...
4
votes
1answer
229 views

Please review my PDO Database wrapper

The subject is this small project - PHP/MySQL Database wrapper The three main goals of this projects are: Easy way to map database columns to object properties Simple solution to insert or update ...
3
votes
1answer
195 views

Is my ERD design for “Adding Friends Capability” is good enough? [closed]

I have a school project to create a simple networking site, And I want to know if my database design is good. I'm open for any suggestions to improve my design thanks!
5
votes
1answer
81 views

Is this MySQL database structure acceptable or can it be improved?

Recently I've tried to teach myself basic things about MySQL databases, however I received some help on stackoverflow with creating a good database structure trying to avoid redundancy as much as ...
3
votes
1answer
121 views

Semi-Repost: How can I improve my PHP model for my html5/js mobile app?

I was advised, rightfully so, to simplify my question. I am posting the a section of the model of my application. Any/all feedback would be very helpful as I am trying to build my PHP skills, but I ...
3
votes
1answer
211 views

Is my base class constructed correctly?

I have tables that use BulkManager to save data to database. I moved common functionality to BulkTableBase. Because creation of BulkManager depends on params of each Table I create the BulkManager in ...
4
votes
1answer
146 views

My first implementation of mongoDB

I'm new to Code Review, my assumption is that it is a place I can get feedback on working code that I've built, I hope that is right. This is my first implementation of mongoDB, much much more to ...