In MariaDB, UUID_SHORT() is a built-in function that returns a short Universal Unique Identifier (UUID).
It returns a 64-bit unsigned integer (as opposed to the string-form 128-bit identifier as returned by the UUID() function).
Category: DBMS
Database Management Systems
How UUID() Works in MariaDB
In MariaDB, UUID() is a built-in function that returns a Universal Unique Identifier (UUID).
The UUID is generated according to “DCE 1.1: Remote Procedure Call” (Appendix A) CAE (Common Applications Environment) Specifications published by The Open Group in October 1997 (Document Number C706).
Continue readingHow ADD_MONTHS() Works in MariaDB
In MariaDB, ADD_MONTHS() is a built-in date and time function that adds a given number of months to a date, and returns the result.
The date can be a date, datetime, or timestamp value.
This function was introduced in MariaDB 10.6.1 to enhance Oracle compatibility. There are at least 6 other ways to add months to a date in MariaDB.
Continue readingHow PI() Works in MariaDB
In MariaDB, PI() is a built-in function that returns the value of the number π (pi).
The number Ï€ is a mathematical constant. It is defined as the ratio of a circle’s circumference to its diameter, and it also has various equivalent definitions. It is approximately equal to 3.141593, although its decimal representation never ends.
Continue readingHow CRC32 Works in MariaDB
In MariaDB, CRC32() is a built-in numeric function that computes a cyclic redundancy check value and returns a 32-bit unsigned value.
CRC32 is a popular checksum algorithm used to detect data corruption.
Continue reading2 Ways to Get a Document’s Size in MongoDB
If you need to return the size of a document in MongoDB, you can use the following:
- The
$bsonSizeaggregation pipeline operator - The
Object.bsonSize()method
Below are examples of each approach.
Continue readingHow LOG10() Works in MariaDB
In MariaDB, LOG10() is a built-in function that returns the base-10 logarithm of its argument.
How LOG2() Works in MariaDB
In MariaDB, LOG2() is a built-in function that returns the base-2 logarithm of its argument.
How TRUNCATE() Works in MariaDB
In MariaDB, TRUNCATE() is a built-in numeric function that returns a given number, truncated to a given number of decimal places.
How DIV Works in MariaDB
In MariaDB, DIV performs integer division.
It discards from the division result any fractional part to the right of the decimal point.
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