The LOG function in SQLite is used to calculate the natural logarithm of a given numeric expression. The natural logarithm is the logarithm with base “e”, where “e” is the mathematical constant approximately equal to 2.71828.
The syntax of the LOG function in SQLite is as follows:
Here, numeric_expression is the numeric value for which the natural logarithm needs to be calculated.
The LOG function returns the natural logarithm of the specified numeric expression. For example, if we want to calculate the natural logarithm of the number 10, we can use the following SQL query:
This will return the value 2.302585, which is the natural logarithm of 10.
In addition to the LOG function, SQLite also provides other mathematical functions, such as ABS, ROUND, CEIL, FLOOR, and EXP, which can be used to perform various mathematical operations on numeric values.
It is important to note that the LOG function in SQLite only accepts positive numeric values as input. If a negative value or a non-numeric value is passed as input, the function will return NULL.
In conclusion, the LOG function in SQLite is a useful mathematical function that can be used to calculate the natural logarithm of a given numeric expression.