Creating a Table in SQLite3 Step 1: Start SQLite3įirstly, you need to start _SQLite3`. Indexing: The primary key is typically _indexed, which helps improve the performance of _searching, _sorting`, and joining operations on the table.ĥ.

Single value or combination: A primary key can be a single field or a combination of multiple fields ( composite key), depending on the requirements of the database. It provides a stable and reliable reference to a specific record. Immutable: The value of a primary key should not _change over time`. It must have a valid value for every record. Non-nullability: A primary key value cannot be _NULL or empty`. No two records can have the same primary key value. Uniqueness: Every value in the primary key column(s) must be _unique`. Here are some key characteristics of a primary key: It ensures that each entry in the table has a _unique identifier, which helps in _identifying, _retrieving, and _manipulating specific records in the database. The value is a blob of data, stored exactly as it was input.Ī _primary key is a field or set of fields in a database table that _uniquely identifies each record or row in the table. The value is a text string, stored using the database encoding (UTF-8, UTF-16BE or UTF-16LE). The value is a floating point value, stored as an 8-byte IEEE floating point number. The value is a signed integer, stored in 1, 2, 3, 4, 6, or 8 bytes depending on the magnitude. In SQLite, data types are _categorized` into five storage classes: Different data types can include integers, decimal numbers, strings, dates, etc. It defines the _kind of values` that a column can accept. What is a Data Type?Ī _data type is an attribute that tells the _type of data that a column can store in a database. _DbSchema` (A visual database design & management tool)įor installation and establishing connection you can read our article SQLite-How to create a database? 3._SQLite` installed on your system (sqlite3 tool for command line usage).A basic understanding of _SQL` (Structured Query Language).To follow along with this guide, you’ll need the following:

This article will guide you through creating a table in SQLite using both the _sqlite3 and _DbSchema tools.

It’s highly reliable and used in various applications, from embedded devices to web browsers. SQLite is a self-contained, _serverless, zero-configuration, and _transactional SQL database engine.

Sqlite 3 table definitions