The log10()
function in SQLite is used to calculate the base-10 logarithm of a number. This function is part of SQLite’s built-in mathematical functions, and it returns the logarithmic value of the argument passed to it.
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Understanding the ATAN2() Function in SQLite
The ATAN2()
function in SQLite calculates the arc tangent (inverse tangent) of the ratio of two given numeric values, typically representing the y-coordinate and x-coordinate of a point.
Unlike ATAN()
, which calculates the angle based only on a single tangent value, ATAN2()
considers both the x and y values to determine the correct quadrant for the resulting angle.
A Quick Overview of the ATAN() Function in SQLite
The ATAN()
function in SQLite calculates the arc tangent (inverse tangent) of a given numeric value. The result is the angle in radians whose tangent is the specified number.
Overview of the POWER() Function in SQLite
SQLite provides various mathematical functions out of the box, and one of them is the power()
function (also available as pow()
).
The power()
function calculates the result of raising one number to the power of another. In other words, it performs an exponentiation operation. This function is particularly useful for mathematical operations where powers or exponents are required.
How ATANH() Works in SQLite
The ATANH()
function in SQLite calculates the inverse hyperbolic tangent of a given numeric value. The result is the value whose hyperbolic tangent is the specified number.
Understanding the .changes Command in SQLite
The .changes
dot command in SQLite is a helpful utility for developers working with databases, especially when tracking the number of rows affected by SQL statements like INSERT
, UPDATE
or DELETE
.
When used in the SQLite command-line interface, .changes
toggles an option that shows the count of modified rows after executing a command.
This article looks at how the .changes
command works, how it can be enabled or disabled, and provides an example to illustrate how it works.
A Quick Look at EXP() in SQLite
The exp()
function in SQLite calculates the exponential of a given number, where the base is the mathematical constant e (approximately 2.71828). In other words, it returns e raised to the power of x for a given input x.
This function can be useful in scientific and statistical calculations involving exponential growth, decay, and other natural logarithmic-based transformations.
Continue readingHow SQLite’s LN() Function Works
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 readingUnderstanding the total_changes() Function in SQLite
SQLite 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.
An Overview of Dot Commands in SQLite
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 reading