Important

New database features are no longer connected to engine versions; features are now enabled independently during scheduled update windows, and “major” and “minor” releases no longer exist in Helios. Please visit the release notes to view the latest features available in your database clusters.

Comparison Operators and Functions

The following comparison operators and functions are supported.

Name	Description
`BETWEEN ... AND ...`	Check if a value is within a range
`NOT BETWEEN ... AND ...`	Check if a value is not within a range
`=`	Equal operator
`<=>`	NULL-safe equal operator
`>`	Greater than operator
`>=`	Greater than or equal operator
`<`	Less than operator
`<=`	Less than or equal operator
`IN()`	Check whether a value is in a comma-separated list of values
`NOT IN()`	Check whether a value is not in a comma-separated list of values
`IS`	Compare a value to a boolean
`IS NOT`	Compare a value to the complement of a boolean
`IS NULL`	Check if a value is NULL
`IS NOT NULL`	Check if a value is not NULL
`ISNULL()`	Test whether the argument is NULL
`LIKE`	Check if a value matches a simple pattern
`NOT LIKE`	Check if a value does not match a simple pattern
`!=, <>`	Not equal operator
`strcmp()`	Compare two strings and return -1, 0, or 1

Comparison Operators and Functions

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