SQLite is a lightweight, serverless database engine widely used for its simplicity and flexibility. Among its many functions, the likelihood() function is a handy option that allows you to influence query planning by providing hints about the probability of certain conditions being true.
This article explores the details of the likelihood() function, its syntax, use cases, and a practical example to demonstrate its application.
The ACOSH() function in SQLite calculates the inverse hyperbolic cosine of a given number. The inverse hyperbolic cosine of a number is the value whose hyperbolic cosine equals that number.
The COSH() function in SQLite calculates the hyperbolic cosine of a number, which is similar to the regular cosine function, but for hyperbolic geometry.
In SQLite, the SQRT() function calculates the square root of a number. It returns the value which, when multiplied by itself, equals the input number.
Note that SQLite returns NULL if you try to calculate the square root of a negative number, NULL, or a value of the wrong type.
The ASINH() function in SQLite calculates the inverse hyperbolic sine of a given numeric value. The result is the value whose hyperbolic sine is the specified number.
The PI() function in SQLite returns the mathematical constant π (pi), which is approximately 3.14159265358979. It is used to represent the ratio of the circumference of a circle to its diameter.
The PI() function is commonly employed in mathematical computations, particularly in geometry, trigonometry, and other scientific calculations involving circles and angles.
The COS() function in SQLite calculates the cosine of a given angle. The angle must be specified in radians. The result is the cosine of the angle, which is a real number between -1 and 1.
The MOD() function in SQLite is used to calculate the remainder when one number is divided by another. This operation is commonly known as the modulo operation.
The SINH() function in SQLite calculates the hyperbolic sine of a value. The hyperbolic sine is a mathematical function that can return any real number and grows exponentially as its input increases or decreases.
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.