In SQLite, the LN() function returns the natural logarithm (logarithm to the base e) of a given positive number.
This function is helpful in mathematical calculations involving growth rates, exponential functions, and natural logarithmic transformations.
Continue readingSQLite is a popular, lightweight, SQL-based relational database engine, frequently used in applications where a full database management system isn’t necessary. Among its various features, SQLite offers built-in functions to track the number of changes made to the database during operations, and one of these functions is total_changes().
In this article, we’ll discuss what the total_changes() function does, how it can be used, and provide examples to illustrate its functionality.
SQLite is a lightweight, self-contained, and highly reliable SQL database engine used widely for developing and testing small-scale applications. One unique feature of SQLite is the set of “dot commands” used in the SQLite command-line interface (CLI) to execute various actions related to database management, navigation, and configuration.
These dot commands are not part of SQL syntax itself but provide a convenient way to manage and interact with SQLite databases.
Continue readingIn SQLite, the degrees() function is used to convert an angle from radians to degrees. In trigonometry, angles are commonly measured in either radians or degrees, and this function helps to easily switch from one unit to the other.
In SQLite, the SIN() function calculates the sine of an angle specified in radians.
This is a fundamental trigonometric function that returns a value between -1 and 1, representing the ratio of the opposite side to the hypotenuse in a right triangle.
Continue readingIn database management systems (DBMSs) such as SQLite, indexes can be used to optimize the performance of queries, especially for larger datasets where querying can become time-consuming. An index allows the database to locate rows more quickly without scanning every row in a table.
This article explains how to create an index in SQLite, along with a simple example.
Continue readingThe log2() function in SQLite calculates the base-2 logarithm of a given number.
This function can be useful for scenarios such as binary calculations, information theory, or situations where the base-2 logarithm is needed.
Continue readingThe tanh() function in SQLite calculates the hyperbolic tangent of a number.
The hyperbolic tangent is the ratio of hyperbolic sine to hyperbolic cosine, producing values between -1 and 1.
Continue readingThe SQLite TRUNC() function is used to truncate a number to an integer. It returns the integer part of its argument rounding toward zero.
TRUNC()is similar to CEIL() and FLOOR(), except that TRUNC() always rounds toward zero. CEIL() on the other hand, always rounds up, and FLOOR() always rounds down.
The LOG() function in SQLite calculates the logarithm of a given number to a specified base, with 10 being the default base.
This is helpful for logarithmic transformations or calculations requiring a specific base (e.g., base 10 for common logarithms or base 2 for binary logarithms).
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