sqliteHow do I format a SQLite database?
SQLite is a powerful and easy-to-use database engine. To format a SQLite database, you must first define the schema of the database. This is done by creating tables that define the columns and data types of each field.
For example, the following code creates a table named users with three columns: id, name, and age:
CREATE TABLE users (
id INTEGER PRIMARY KEY,
name TEXT NOT NULL,
age INTEGER NOT NULL
);
Once the table is created, you can insert data into it with the INSERT statement. For example, the following code inserts a new user into the users table with an id of 1, a name of "John", and an age of 25:
INSERT INTO users (id, name, age) VALUES (1, 'John', 25);
You can also use the UPDATE statement to modify existing data in the table. For example, the following code updates the name of the user with an id of 1 to "Jane":
UPDATE users SET name = 'Jane' WHERE id = 1;
You can also delete data from the table with the DELETE statement. For example, the following code deletes the user with an id of 1:
DELETE FROM users WHERE id = 1;
Finally, you can query the database with the SELECT statement. For example, the following code selects all users from the users table:
SELECT * FROM users;
Code Parts Explanation
CREATE TABLE: Creates a new table in the database with the specified columns and data types.INSERT: Inserts a new row into the table with the specified values.UPDATE: Updates an existing row in the table with the specified values.DELETE: Deletes an existing row in the table.SELECT: Queries the table and returns the specified data.
Relevant Links
More of Sqlite
- How do I use UUIDs in SQLite?
- How do I use SQLite with Visual Studio?
- How can I use an upsert statement to update data in a SQLite database?
- How do I install and use SQLite on Ubuntu?
- How can I use SQLite with Xamarin Forms?
- How do I use the SQLite sequence feature?
- How can I use SQLite with Xamarin Forms and C#?
- How do I use SQLite VACUUM to reclaim disk space?
- How do I use SQLite REPLACE to update existing records in a database?
- How do I use query parameters with SQLite?
See more codes...