#Db browser for sqlite trigger how to#
#Db browser for sqlite trigger code#

#Db browser for sqlite trigger code#

Bellow is a generic representaion of the code to create a table: Tables are the structures that hold on to the data that is inserted into SQL-like databases. SQLite is flexible with the extensions you can use for your database file. Let’s start by creating the database using these SQLite commands in the command prompt by changing the directory into the file we want the database to be and then create the database by activating the sqlite3 library and choosing a name for it: I am going to let my nerd self take over and create a database to containing race and subrace information from Dungeons and Dragons since it is somewhat different from traditional examples and is something I have fun playing with my friends. Transactions must abide by a set of rules called ACID.Ī stands for Atomic meaning that changes happen as a whole and cannot be separated, C stands for Consistent suggesting that the database state must remain stable after the transactions are commited or rolled back, I stands for Isolated indicating that transactions are only visible in the current session and D stands for Durable meaning that changes must be permanent. SQLite is also Transactional implying that all changes either take place completely or don’t. SQLite’s Serverless feature enables the existence of other features like Self-contained meaning that it doesn’t need external resources making it usable in any environment and Zero-configuration because there is no server to configurate. SQLite is one such implementation and, unlike MySQL or PostgreSQL, is a simpler library created to be used locally and without the need of external servers. However, it is up to the developers to comply or not to the standards to a certain extent depending on how it is meant to be applied. This demonstration is facilitated by DB Browser for SQLite application, from which I have no affiliation.Įxample table containing example attributes and values. You can see below an example table with three records and three attributes containing different types of data. These tables are two dimensional arrays of information having rows or records and columns or attributes. Being relational means that within the database there are tables that may relate to each other through common attributes. SQLite is a relational database based on the SQL language. Before getting into it, let me try and give you an overview of what this SQLite library is.

#Db browser for sqlite trigger how to#

We are going to see how to create tables using the SQLite library and how to minimise the insertion of wrong data by providing additional information at the moment of constructing a table and after it is created. We’ll be focusing on the SQL counterpart of databases in this story. It is easier to know where things are and frees more space either for storage or for work.Ĭurrently, the database world is divided into SQL database libraries and NoSQL libraries with their own advantages and disadvantages.

Keeping your data organised is like keeping a tidy workplace.