Sqlitestudio

2/14/2022by admin
  • SQLite Tutorial
  • Advanced SQLite

SQLiteStudio The SQLiteStudio tool is a free GUI tool for managing SQLite databases. It is free, portable, intuitive, and cross-platform. SQLite tool also provides some of the most important features to work with SQLite databases such as importing, exporting data in various formats including CSV, XML, and JSON. Start SQLiteStudio from the menu in the upper left corner. When SQLiteStudio has started, choose Add a database from Database Menu. Click the green circle with +-sign.

  • SQLite Interfaces
  • SQLite Useful Resources
  • Selected Reading

SQLite is a software library that implements a self-contained, serverless, zero-configuration, transactional SQL database engine. SQLite is the most widely deployed SQL database engine in the world. The source code for SQLite is in the public domain. This tutorial will give you a quick start with SQLite and make you comfortable with SQLite programming.

This tutorial has been prepared for beginners to help them understand the basic-to-advanced concepts related to SQLite Database Engine.

Before you start practicing various types of examples given in this reference, we assume that you are already aware about what is a database, especially RDBMS and what is a computer programming language.

This SQLite tutorial teaches you everything you need to know to start using SQLite effectively. In this tutorial, you will learn SQLite step by step through extensive hands-on practices.

This SQLite tutorial is designed for developers who want to use SQLite as the back-end database or to use SQLite to manage structured data in applications including desktop, web, and mobile apps.

SQLite is an open-source, zero-configuration, self-contained, stand-alone, transaction relational database engine designed to be embedded into an application.

Getting started with SQLite

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You should go through this section if this is the first time you have worked with SQLite. Follow these 4-easy steps to get started with SQLite fast.

  • First, help you answer the first and important question: what is SQLite? You will have a brief overview of SQLite.
  • Second, show you step by step how to download and install the SQLite tools on your computer.
  • Third, introduce you to an SQLite sample database and walk you through the steps of using the sample database for practicing.
  • Finally, guide you on how to use the sqlite3 commands.

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Basic SQLite tutorial

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Db Browser For Sqlite

This section presents basic SQL statements that you can use with SQLite. You will first start querying data from the sample database. If you are already familiar with SQL, you will notice the differences between SQL standard and SQL dialect used in SQLite.

Section 1. Simple query

  • Select – query data from a single table using SELECT statement.

Section 2. Sorting rows

  • Order By – sort the result set in ascending or descending order.

Section 3. Filtering data

  • Select Distinct – query unique rows from a table using the DISTINCT clause.
  • Where – filter rows of a result set using various conditions.
  • Limit – constrain the number of rows returned by a query and how to get only the necessary data from a table.
  • Between – test whether a value is in a range of values.
  • In – check if a value matches any value in a list of values or subquery.
  • Like – query data based on pattern matching using wildcard characters: percent sign (%) and underscore (_).
  • Glob – determine whether a string matches a specific UNIX-pattern.
  • IS NULL – check if a value is null or not.

Section 4. Joining tables

  • SQLite join – learn the overview of joins including inner join, left join, and cross join.
  • Inner Join – query data from multiple tables using the inner join clause.
  • Left Join – combine data from multiple tables using the left join clause.
  • Cross Join – show you how to use the cross join clause to produce a cartesian product of result sets of the tables involved in the join.
  • Self Join – join a table to itself to create a result set that joins rows with other rows within the same table.
  • Full Outer Join – show you how to emulate the full outer join in the SQLite using left join and union clauses.

Section 5. Grouping data

  • Group By – combine a set of rows into groups based on specified criteria. The GROUP BY clause helps you summarize data for reporting purposes.
  • Having – specify the conditions to filter the groups summarized by the GROUP BY clause.

Section 6. Set operators

  • Union – combine result sets of multiple queries into a single result set. We also discuss the differences between UNION and UNION ALL clauses.
  • Except – compare the result sets of two queries and returns distinct rows from the left query that are not output by the right query.
  • Intersect – compare the result sets of two queries and returns distinct rows that are output by both queries.

Section 7. Subquery

  • Subquery – introduce you to the SQLite subquery and correlated subquery.
  • Exists operator – test for the existence of rows returned by a subquery.

Section 8. More querying techniques

  • Case – add conditional logic to the query.

Section 9. Changing data

This section guides you on how to update data in the table using insert, update, delete, and replace statements.

  • Insert – insert rows into a table
  • Update – update existing rows in a table.
  • Delete – delete rows from a table.
  • Replace – insert a new row or replace the existing row in a table.

Section 10. Transactions

  • Transaction – show you how to handle transactions in SQLite.

Section 11. Data definition

In this section, you’ll learn how to create database objects such as tables, views, indexes using SQL data definition language.

  • SQLite Data Types – introduce you to the SQLite dynamic type system and its important concepts: storage classes, manifest typing, and type affinity.
  • Create Table – show you how to create a new table in the database.
  • Alter Table – show you how to use modify the structure of an existing table.
  • Rename column – learn step by step how to rename a column of a table.
  • Drop Table – guide you on how to remove a table from the database.
  • VACUUM – show you how to optimize database files.

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Section 12. Constraints

  • Primary Key – show you how to define the primary key for a table.
  • NOT NULL constraint – learn how to enforce values in a column are not NULL.
  • UNIQUE constraint – ensure values in a column or a group of columns are unique.
  • CHECK constraint – ensure the values in a column meet a specified condition defined by an expression.
  • AUTOINCREMENT – explain how the AUTOINCREMENT column attribute works and why you should avoid using it.

Section 13. Views

  • Create View – introduce you to the view concept and show you how to create a new view in the database.
  • Drop View – show you how to drop a view from its database schema.
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Section 14. Indexes

  • Index – teach you about the index and how to utilize indexes to speed up your queries.
  • Index for Expressions – show you how to use the expression-based index.
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Section 15. Triggers

  • Trigger – manage triggers in the SQLite database.
  • Create INSTEAD OF triggers – learn about INSTEAD OF triggers and how to create an INSTEAD OF trigger to update data via a view.

Section 16. Full-text search

  • Full-text search – get started with the full-text search in SQLite.

Section 17. SQLite tools

  • SQLite Commands – show you the most commonly used command in the sqlite3 program.
  • SQLite Show Tables – list all tables in a database.
  • SQLite Describe Table – show the structure of a table.
  • SQLite Dump – how to use dump command to backup and restore a database.
  • SQLite Import CSV – import CSV files into a table.
  • SQLite Export CSV – export an SQLite database to CSV files.

SQLite Resources

If you want to know more information about SQLite, you can go through a well-organized SQLite resources page that contains links to useful SQLite sites.

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