#SQLITE BROWSER 3 INSTALL#

U (Unique): This field in each record must hold a unique value, meaning there canвЂ™t be any duplicates in this field in the table.We used this in the вЂњidвЂќ field in the example we covered above. AI (Auto-Incrementing): Numeric fields can be automatically filled in, with the next highest unused value.There can only be one primary key in a table.

In a table of user accounts, though, it might be a username.

This might be a simple numeric value, like the auto-incrementing integer fields we covered above.

PK (Primary Key): A field (or group of fields) that provides a unique identifier for the records in the table.

If you try to add a record without providing a value for this field, it will be rejected.

NN (Not Null): When this option is set, the field canвЂ™t be left empty.

The checkboxes and other options next to each field allow you to add the following behaviors: WeвЂ™ve added a text field to hold the name of the eagle, and a real (floating point) numeric field to hold the wingspan. Name your new table (weвЂ™ve called ours вЂњeaglesвЂќ), and then click вЂњAdd Field.вЂќ You can now type a name for the field and select the type of information it will contain from the вЂњTypeвЂќ drop-down menu. The вЂњEdit Table DefinitionвЂќ dialog appears. You can then export your data as SQL or CSV. This contains the instructions necessary to re-create a database and insert its data into a database.ДЄnother common format used to import table definitions and data is the comma-separated values (CSV) format.В You can use a data-generation site, such as Database Test Data, to generate dummy data for practicing purposes. Sometimes, you might be given or sent a database dump file in SQL format. WeвЂ™re going to look at two ways you can import both data and database table definitions, as well as how you can create your own database. When DB4S starts, it doesnвЂ™t have a database loaded into it. On Manjaro, we use pacman: sudo pacman -Sy sqlitebrowser

#SQLITE BROWSER 3 INSTALL#

On Fedora, you type: sudo dnf install sqlitebrowser To install DB4S on Ubuntu, use the following command (again, note the installation still uses the old name): sudo apt-get install sqlitebrowser You can make sure the command does what you think itвЂ™s going to before you hard-code some SQL into your application.

Browse and search for database records.

Create, edit, and delete tables and indexes.

Import and export tables and data in CSV format.

Import and export database schemas, tables, and data in SQL format.

In fact, the website for the project still uses вЂњsqlitebrowserвЂќ as its domain, and the old name is also used during the installation of DB4S. YouвЂ™ll still see references to the old name here and there. So, SQLite Browser was renamed DB Browser for SQLite. In fact, SQLiteвЂ™s database file format is so well regarded, itвЂ™s one of only a handful recommended by the Library of CongressВ for long-term data storage. You can even move it to a machine running a different operating system by copying one file. It simplifies your applicationвЂ™s installation routines and lowers the minimum hardware requirements for your application.ДЄdditionally, because SQLite uses a single cross-platform file for its databaseВ tables,В indexes, andВ schemas,В the entire database can be moved to another computer. Having a capable, self-contained database engine tucked away inside your application removes a lot of problems.

SQLite also has a command-line tool for manipulating databases, but itвЂ™s the library thatвЂ™s made it a triumph. This means you donвЂ™t have to provide an external SQL database server, like MySQL, MariaDB, or Microsoft SQL Server. The database engine becomes an integral part of the product. ItвЂ™s a fast, lightweight library thatвЂ™s incorporated (or linked, in developer-speak) in other applications. The incredible reach of the SQLite database is due to its architecture.

Sqlite browser 3