#Golang sqlite how to
#Golang sqlite drivers
#Golang sqlite code

This is one reason I'm working on - with a focus on INTEROPERABILITY and stable 'narrow waists' (as discussed on the blog ) (which was of course not universal at Google, but definitely there) Google+ itself is probably another example of that inward looking, out of touch view. Meanwhile other companies are shipping features that users care about. Somebody wrote a Google+ rant about how Python services should be rewritten in Go so that IDEs would work better.

#Golang sqlite code

One reason I left Google over 6 years ago was the constant code churn without user visible progress. Instead, they should focus on interoperating with other languages (as in the Unix philosophy). to pretend that they are at the center of the universe. There's this tendency of languages to want to be the be-all end-all, i.e. think e-mail parsers, video codecs, spam filters, information retrieval libraries, etc.). It's repetitive and drastically increases the amount of code that has to be maintained, and reduces the overall quality of each solution (e.g. Too much time is spent on 'How do I do X in language Y?' rather than just 'How do I do X?'ДЇor example, people want a web socket server, or a syntax highlighting library, in pure Python, or Go, or JavaScript, etc. Yes 100%, here is my lament from 4 years ago on that topic.ДЄ big part of my pain, and the pain I've observed in 15 years of industry, is programming language silos. That can sometimes work wonders, but it's also not a magic bullet. When that's not possible, I use unsafe and or assembly to lift just the problematic C calls into Go. That amortizes the overhead and makes it less significant. With sqlite, instead of fetching rows one at a time, I would write a wrapper that takes some arrays and or buffers to fetch multiple rows at a time. Typically what I like to do in this case is write a C wrapper around the slow API that let's me batch work or combine multiple calls into one. For something like sqlite that causes a noticable slowdown. Unlike rust which uses the C calling convention (correct me if I'm wrong) and has no garbage collector or coroutine stacks to worry about, Go has a hefty price to pay when calling a C funcion.

But I think the biggest reason is cgo is slow. Compared to Go, this makes it quite a bit more difficult to build and distribute than a single binary. Using cgo means you have to build and link external dependencies in another language.

New ( 'delete failed' ) ) type SQLiteRepository struct fmt. New ( 'update failed' ) ErrDeleteFailed = errors. New ( 'row not exists' ) ErrUpdateFailed = errors. New ( 'record already exists' ) ErrNotExists = errors. Package website import ( 'database/sql' 'errors' '/mattn/go-sqlite3' ) var ( ErrDuplicate = errors. LetвЂ™s start with our project structure tree: In our example, we want to create a Website repository - a repository that stores information about a particular website - its name, URL, and ranking.

#Golang sqlite how to

This tutorial demonstrates how to create a simple repository and use this pattern to create, read, update and delete data from an SQLite database. We strongly advocate using the Repository to exchange data with the database. Easy addition of new features and modifications to the data access code, and even easy replacement of the entire database, as the code that operates directly on the DB is hidden in a specific repository implementation.Improving readability of your code - business logic is not mixed with data access logic.Reduction of code duplication - you define a data access layer for a given domain object only once.

This can be done by abstracting the data access layer into a separate structure, responsible for storing and retrieving data from the database. When exchanging data with a database, it is a good idea not to mix application logic with database logic.

#Golang sqlite drivers

One of the most popular such drivers for SQLite is mattn/go-sqlite3, and this driver is used in this tutorial to demonstrate how to make basic operations on an SQLite database in Go.Д¬lick here to go directly to the full code example. Most SQL databases implementations use it, which allows the same functions to be used for different databases. Go does not provide any official driver, but it does have a common driver interface for SQL-like databases, defined in the database/sql package. To use SQLite in Go, you need a database driver - a client that allows you to connect to and perform operations on the database.