Category: SQLite

SQLite database supports a wide range of date and time functions. These functions allow users to work with dates and times in various formats, manipulate them, and extract useful information. Here are some of the most commonly used date and time functions in SQLite: date() The date() function returns the current date in the format…(Continue Reading)

SQLite aggregate functions are powerful tools used to perform calculations on sets of data in a SQLite database. These functions can be used to return a single value that summarizes a set of values, such as the sum, average, or maximum of a group of numbers. SQLite aggregate functions are commonly used in business and…(Continue Reading)

SQLite database supports a variety of data types to represent different kinds of data. In this article, we will discuss the five main data types in SQLite: NULL, INTEGER, REAL, TEXT, and BLOB. NULL The NULL data type in SQLite represents a missing or unknown value. It is commonly used to indicate the absence of…(Continue Reading)

One of the important features of SQLite database is its ability to reclaim unused disk space through a process called VACUUM. In SQLite, when you delete or update a row, the space that it occupied in the database file is not immediately reclaimed. Instead, the space is marked as free and made available for reuse…(Continue Reading)

SQLite tables are one of the key components of an SQLite database. A table is a collection of data organized into rows and columns, much like a spreadsheet. Each row in an SQLite table represents a record or instance of data, while each column represents a field or attribute of that data. SQLite tables are…(Continue Reading)

In SQLite, the ON CONFLICT clause is used in SQL statements to specify what action should be taken if a conflict arises when trying to insert or update data into a table. A conflict can occur when trying to insert a row with a primary key or unique index that already exists in the table,…(Continue Reading)

One of SQLite database features is the ability to create virtual tables, which are special types of tables that don’t actually store data. Instead, they provide a way to access data from other sources and present it in a table-like format. The SQLite CREATE VIRTUAL TABLE statement is used to create a new virtual table.…(Continue Reading)

SQLite indexes are a fundamental feature of the SQLite database management system that allows for efficient querying and retrieval of data. Indexes are a mechanism for organizing data in a way that makes it faster to search and retrieve information from a database. An SQLite index is a data structure that is used to speed…(Continue Reading)

SQLite CREATE INDEX is a SQL command that creates an index on one or more columns of a table in a SQLite database. An index is a data structure that allows for faster retrieval of data from a table by storing a copy of a portion of the table’s data in a smaller, more easily…(Continue Reading)

SQLite constraints are a great way to ensure the data in your database is valid and consistent. By using SQLite constraints, you can avoid having to write custom validation code. SQLite constraints are also easy to use and understand. Syntax CREATE TABLE table_name( column_name1 datatype constraint, column_name2 datatype constraint, column_name3 datatype constraint, … ); SQLite…(Continue Reading)