Questions tagged [sqlite]
SQLite is a software library that implements a self-contained, serverless, zero-configuration, transactional SQL database engine.
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Properly implement MVVM pattern in multiwindow WPF app
I'm trying to develop a SQLite based WPF app (c#) utilizing the MVVM pattern. I'm building this on a decade old laptop with only 2 GB RAM, 20 GB of free storage in it and Windows7.
So I'm using .Net 4....
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To do application using python's tkinter and sqlite3
I program python as a hobby and wanted to learn how to apply databases in a functional program, while at the same time make something useful. so I made a to do application with some basic ...
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Newspaper Bill Calculator CLI with Python (3 of 3, Database)
Code is posted after explanation.
Due to the size of the project, this is being posted in three separate posts. This also ensures each post is more focused.
Post 1 of 3, Core: Newspaper Bill ...
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Acupuncture database builder
The following code builds a rudimentary acupuncture database by collecting data from the web.
I would like to hear suggestions about improvements to the database structure, code organization, web-...
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Code cleanup for a Java project that creates a database containing members of a club
This question is related to my first post on this forum. Since the rules are not to make the questions too broad, I thought I'd create a new question.
I'm not experiencing any issues with this piece ...
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Searchable database with Java and SQL
What does the code do?
Albeit unfinished (it does work, it's just not complete yet), the code creates a database (members.db) where telephone numbers, IDs, and ...
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SQLite loses performance versus SQL server and powershell regarding LEFT JOIN (INTERSECT)
I have the following files in a directory:
1256590_hashed.txt
1273301_hashed.txt
1177301_hashed.txt
...
etc...
these represent cut and hashed segments of documents
...
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SQLite C/ADO VBA library with reflection
SQLite C/ADO VBA library with reflection
The SQLiteCAdo library is a VBA middleware facilitating access to SQLite databases. Its two subpackages provide alternative connectivity options: via ADODB/...
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Code to scan filesystem, store every path into sqlite and update only when something has changed
I have made a program that does what the title explains. It also hashes the file to check for changes. I will be doing this for a project to keep track of files that has been changed when doing ...
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Beginner CRUD Console Application
I wrote this basic CRUD app + simple report so I could practice talking to a db directly. I purposefully avoided repository pattern and Entity Framework and only used a library to show the coming data ...
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bit.ly Clone in Python powered by Flask
Recently, I was studying flask and my friend sent me a bit.ly link. Then the idea of a bit.ly clone struck my mind.
This project uses
Python - 3.10.0
flask - version 2.0.2
Bootstrap CSS. (I am very ...
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Database operations classes and currencies class
I work on a project that is dealing with two databases (Mysql Db on Internet + Sqlite Local Db).
I will explain what I do with my project to build the codes:
firstly I have (Class "ClsMysql"...
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VBA introspection library for SQLite
SQLiteDB VBA Library is a set of VBA helper functions for the SQLite engine. The primary motivation behind this project is to provide convenient access to extended introspection features. Because of ...
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Bayesian ranking of fanfics with python and sqlite
I've done a script to sort fanfics by the bayesian average of views and rating. I've used views because it took much longer to scrape the dlp website for reviews.
I leave all the code so that it works....
user61445
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Optimizing the insertion of 400 000 records in sqlite
I have the python script that creates a sqlite database and fills it with data (originally coming from a json file). At the time I execute the code below, my word ...
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Getting a username from a database and displaying it in HTML
I'm using Flask on Python and I'm displaying the username at the top of the site (and it's working) as follows:
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Adding iterators to C++ sqlite wrapper class
I recently put up my C++ class to wrap the sqlite3 c library here:
Thin C++ wrapper for sqlite3 C library
One of the suggestions was rather than to specify a vector for arguments to functions instead ...
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Thin C++ wrapper for sqlite3 C library
I originally wrote a rough C++ wrapper of the sqlite3 c library which did not use prepared statements. This code is my attempt at using prepared statements. I have attempted to make the wrapper as ...
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Speed performance of sqlite3 queries looped in python
I have a table data stored in a database ships.db,
the data are informations of tracked ships hourly.
The table data looks like ...
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Covid Tracker + Notify people = Ideal for small coffee place or similar
This is my second project since I started with Python, this time I learned a little bit of SQL that is so useful and beautifully simple.
Starting idea: Generate a program that will store information ...
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Generate a bar chart of weekly data from SQLite.NET
I am using Xamarin.Forms, Microcharts and SQLite.NET to create a mobile app. The SQLite.NET database stores details about books (book ID and entry date - the date it was entered in the system).
The ...
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C# Password Security Login System with SQLite
I want to start by just mentioning I'm a semi-beginner at C# and cyber security so any feedback is appreciated :)
What I think I need reviewing is the SQLite queries and maybe the hashing functions
I'...
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Simple Safe for Loading and Retrieving Digital Images
I wrote this little utility program that saves and load digital images such as videos, pictures among others in a database. I used click module for it's interface. ...
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Sqlite select and delete operation using C API in Swift
I've following sqlite code using C api within Swift having a read and a delete operation for review.
For those not familiar with Swift, defer will execute after the ...
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Is my Android Room SQLite migration code written without flaw, as I wish to have 0 impact on my existing users?
Currently, we plan to perform an intensive SQLite DB migration code in Android. We really want to avoid from having any bad impact (data corruption) on existing users.
Can anyone help me to take a ...
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Simple Sqlite-driven WinForms app in C# 7.0 - database interaction code
Description
This is a simple "demo" app designed to help gain familiarity with interacting with an Sqlite database from C#, particularly storing images as blobs. The database has a single ...
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Load data from SQLite table, modify them and save in to new SQLite table
My goal was to create a script that would:
Pull certain data from an existing SQLite table
Apply a simple mathematical formula
Save the new values to another SQLite table
I’m just starting to learn ...
user230470
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Improving sqlite3 code in swift using c api
Trying to come up with a pattern where the code to open db, writing queries is elegant and clean while handling all possible error conditions.
Following code
...
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Login function with python and SQLite
I'm a new programmer who is currently working on a personal project. It is supposed to be a login program which stores user data in a SQLite database.
I was wondering if anyone could look at my code ...
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Uploading to DB from Excel with Pandas
I have this python script that uses pandas read an excel sheet then to update a sqlite db it works perfectly just wondering if I can speed it up as I am at about 70k lines
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QCombobox Case selection - Pyside2 Index via Sqlite
I have a very simple file where I have a Qcombobox Filter. When you select the filter, I run through a case on the index and output results.
So, on selection I trigger:
...
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SQLite and Python: commit once every 10 seconds maximum, and not after every client request
In a Python Bottle server using SQLite, I noticed that doing a DB commit after each INSERT is not efficient: it can use 100ms after each client request. Thus I wanted to improve this in How to commit ...
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Gold Price Tracker Web Scraper using Python
Hi I've written a web scraper for tracking gold price. Can someone please review my code and suggest improvements. It gets the price of gold from a specific url then stores the price against date in a ...
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Interface class for SQLite databases
I am learning the basics about managing an SQLite database by using Python and, mainly for practice purposes, I have then defined an interface class in order to let operations on database as clear as ...
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Optimizing hundreds of millions of SQLite database inserts in Python
Some background
Feel free to skip this if you're not interested.
There is a very popular bioinformatics program called tabix that permits interval-based searches for genetic variants in VCF files. ...
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Simple Python and SQLAlchemy Text Password Manager
Out of boredom, I decided to start my personal project and I've chosen a simple Text Password Manager.
Note: For anyone out there, I strongly recommend you NOT to use this for any sensitive storage ...
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Count distinct records in a JOINed SQL query
I have two tables with a 1-many relationship, Device and TestResult.
My application has a filter builder front-end that allows a user to retrieve TestResults based on whatever filters they specify. ...
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Database Design for representing category relationships
So I am new to Databases.Recently I was asked this question in an interview where they expected me to come with a schema for storing and retrieving categories for an E-commerce website in an RDBMS. ...
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Uses SeekBar to adjust the data displayed in UI from my Room database
I wrote code that takes the value of the progress bar in my Android app which influences what is displayed on the UI. If the user's progress bar value is above or below a certain number, data will be ...
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Scenario creator database design
I am working on moving a save system from loose files to a (spatial sqlite) database.
The user places objects from a library in a 3d simulation. Scenarios are "what-ifs", what if we place 5 wind ...
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Add as newest ID to SQLite Database
At our company we use an SQLite Database to manage our Drawing IDs (CAD Drawings). The code is written in Python and I need to update it. I think the code I have has some problems, but I am quite ...
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Sending push notifications to a user
I have a function whose responsibility is to send a push notification to a user. I call this function from a view in flask framework.
I have read multiple articles around refactoring and good designs ...
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RAII wrapper for SQLite transactions
I'm using this nice C++ wrapper to work with SQLite3 in my project. I wanted to handle errors gracefully and automatically rollback if piece of code fails, so wrote this simple helper class:
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c++ sqlite3 wrapper
this is a simple wrapper for sqlite3 to make working with databases easier
it isn't a professional implementation but it is much better than the raw c interface
I saved much time and code using this ...
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School House Points (Python + SQLite)
I am creating a database to store house points for our school running events. I would like to be able to tally all the points for the houses and it is working fine, however, I think it may be a bit ...
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SQLite In-memory Database That Inserts Data Read From a CSV File
I wrote this program to make a simple in-memory database using SQLite and JDBC. Requirements I was trying to accomplish are below.
It should consume a CSV file, parse the data, and insert it into the ...
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SafeBlockPopulator to ensure neighboring chunks are generated before population
Bukkit/CraftBukkit/Spigot are Minecraft server extenders that allow for creating and using plugins. A particular type of plugin is a generator, which creates the game world. Generators operate chunk-...
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Insert into SQLite3 database
I have a tsv file containing the mapping for two kinds of identifiers.
...
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SQLite3 account creator
This program allows users to create and log into their account. The database is created using SQLite3 and the GUI is just simple tkinter boxes. I just want to know how to improve my code, organise it, ...
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OOP bank account program in Python 3
Python beginner here. Building an OOP bank account program with SQLite and starting to struggle a bit with its design. From a design standpoint I have a file (bank) which calls ATM. ATM simulates an ...
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