The LEFT() function is a string function that returns the leftmost part of a given string, up to a specified number of characters.
LEFT()
The MBRWithin() function is a useful tool for performing spatial queries in Mariadb.
MBRWithin()
The SESSION_USER() function in MariaDB is used to retrieve the current user’s username and hostname associated with the current session.
SESSION_USER()
The MariaDB ISNULL() function is used to determine if a specified expression is NULL.
ISNULL()
NULL
The LEAST() function is a numeric function that returns the smallest value among a list of values.
LEAST()
The MBRTouches() function is a useful tool for performing spatial queries in Mariadb.
MBRTouches()
The SECOND() function in MariaDB is used to extract the seconds part from a TIME or DATETIME value.
SECOND()
TIME
DATETIME
The IsEmpty() function is a spatial function that returns 1 if the geometry argument is an empty geometry collection, or 0 otherwise.
IsEmpty()
1
0
The LCASE() function is a string function that converts all the characters in a given string to lowercase.
LCASE()
The MBROverlaps() function is a useful tool for performing spatial queries in Mariadb.
MBROverlaps()
The SEC_TO_TIME() function in MariaDB is used to convert a value representing seconds into a TIME value.
SEC_TO_TIME()
The MariaDB IsClosed() function is used to determine if a given LINESTRING’s start and end points are the same.
IsClosed()
LINESTRING
The LAST_VALUE() function is a window function that returns the last value of an expression within a partition or a result set.
LAST_VALUE()
The MBRIntersects() function is a useful tool for performing spatial queries in Mariadb.
MBRIntersects()
The SCHEMA() function in MariaDB is used to retrieve the name of the current database schema or database from which it is being called.
SCHEMA()
The MariaDB IS NULL operator is used to check if a value in a column or expression is NULL.
IS NULL
The LAST_INSERT_ID() function is a information function that returns the value of the AUTO_INCREMENT column for the last row that was inserted or updated by the current session.
LAST_INSERT_ID()
AUTO_INCREMENT
The MBREqual() function is a useful tool for performing spatial queries in Mariadb.
MBREqual()
The RTRIM() function is a string function that removes all trailing spaces from a string.
RTRIM()
The MariaDB IS NOT NULL operator is used to check if a value in a column or expression is not NULL.
IS NOT NULL
The LAST_DAY() function is a date and time function that returns the last day of the month for a given date.
LAST_DAY()
The MBRDisjoint() function is a useful tool for performing spatial queries in Mariadb.
MBRDisjoint()
The RPAD() function in MariaDB is a string function that pads the right side of a string with a specified number of a specified character.
RPAD()
In this article, we will introduce the IS_USED_LOCK() function in Mariadb, which is a locking function that checks whether a named user-level lock is in use or not.
IS_USED_LOCK()
The MBRContains() function is a useful tool for performing spatial queries in Mariadb.
MBRContains()
The ROW_NUMBER() function is a window function that assigns a sequential integer to each row within a partition of a result set.
ROW_NUMBER()
The MariaDB DAYOFMONTH() function is used to extract the day of the month from a given date, returning an integer between 1 and 31.
DAYOFMONTH()
The GET_LOCK() function is a locking function that acquires a named lock with a specified timeout.
GET_LOCK()
The IS_IPV6() function is a network function that tests whether a binary value is a valid IPv6 address or not.
IS_IPV6()
The ROW_COUNT() function in MariaDB returns the number of rows affected by the previous statement.
ROW_COUNT()
The DAYNAME() function is a convenient function in Mariadb that returns the name of the weekday for a given date or datetime value.
DAYNAME()
The GET_FORMAT() function is a date and time function that returns a date or time format string according to a given type and locale.
GET_FORMAT()
The IS_IPV4() function is a network function that tests whether an IPv6 address is an IPv4 address or not.
IS_IPV4()
The ROUND() function in MariaDB is a numeric function that rounds a number to a specified number of decimal places.
ROUND()
The MariaDB DAY() function is used to extract the day of the month from a given date, returning an integer value between 1 and 31.
DAY()
The GeomFromWKB() function is a spatial function that creates a geometry object from a well-known binary (WKB) representation.
GeomFromWKB()
The IS_IPV4_MAPPED() function is a network function that tests whether an IPv6 address is mapped to an IPv4 address or not.
IS_IPV4_MAPPED()
The RLIKE operator in MariaDB is used to test whether a string matches a regular expression.
RLIKE
The MariaDB DATEDIFF() function is used to calculate the difference in days between two dates.
DATEDIFF()
The GeomFromText() function is a spatial function that creates a geometry object from a well-known text (WKT) representation.
GeomFromText()
The IS_IPV4_COMPAT() function is a network function that tests whether an IPv6 address is compatible with an IPv4 address or not.
IS_IPV4_COMPAT()
The RIGHT() function in MariaDB is a string function that returns a given number of characters from the rightmost part of a string.
RIGHT()
The DATE() function is a built-in function in Mariadb that extracts the date part from a date or datetime value and returns it as a date value.
DATE()
The GeometryType() function is a spatial function that returns the type of a geometry object as a string.
GeometryType()
The IS_FREE_LOCK() function is a miscellaneous function that tests whether a named lock is free or not.
IS_FREE_LOCK()
The REVERSE() function in MariaDB is a string function that returns the supplied string with all its characters reversed.
REVERSE()
The DATE_SUB() function is a built-in function in Mariadb that subtracts a specified time interval from a date or datetime value and returns the result as a new date or datetime value.
DATE_SUB()
The GeometryN() function is a spatial function that returns the N-th geometry in a geometry collection.
GeometryN()
The INTERVAL() function is a numeric function that returns the index of the interval that a given value falls into.
INTERVAL()