Function and Operator Reference
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| Name | Description | Added |
|---|---|---|
| + | Addition operator | |
| / | Division operator | |
| * | Multiplication operator | |
| % | Modulo operator. Returns the remainder of N divided by M | |
| - | Subtraction operator | |
| != | Not equals | |
| < | Less than | |
| <= | Less than or equal | |
| <=> | NULL-safe equal | |
| = | Equal | |
| > | Greater than | |
| >= | Greater than or equal | |
| & | Bitwise AND | |
| << | Shift left | |
| >> | Shift right | |
| ^ | Bitwise XOR | |
| ! | Logical NOT | |
| && | Logical AND | |
| XOR | Logical XOR | |
|| | Logical OR | |
| | Bitwise OR | |
| := | Assignment operator | |
| = | Assignment and comparison operator | |
| ~ | Bitwise NOT | |
| ABS | Returns an absolute value | |
| ACOS | Returns an arc cosine | |
| ADD_MONTHS | Add months to a date | |
| ADDDATE | Add days or another interval to a date | |
| ADDTIME | Adds a time to a time or datetime | |
| AES_DECRYPT | Decryption data encrypted with AES_ENCRYPT | |
| AES_ENCRYPT | Encrypts a string with the AES algorithm | |
| AREA | Synonym for ST_AREA | |
| AsBinary | Synonym for ST_AsBinary | |
| ASCII | Numeric ASCII value of leftmost character | |
| ASIN | Returns the arc sine | |
| AsText | Synonym for ST_AsText | |
| AsWKB | Synonym for ST_AsBinary | |
| AsWKT | Synonym for ST_AsText | |
| ATAN | Returns the arc tangent | |
| ATAN2 | Returns the arc tangent of two variables | |
| AVG | Returns the average value | |
| BENCHMARK | Executes an expression repeatedly | |
| BETWEEN AND | True if expression between two values | |
| BIN | Returns binary value | |
| BINARY OPERATOR | Casts to a binary string | |
| BINLOG_GTID_POS | Returns a string representation of the corresponding GTID position | |
| BIT_AND | Bitwise AND | |
| BIT_COUNT | Returns the number of set bits | |
| BIT_LENGTH | Returns the length of a string in bits | |
| BIT_OR | Bitwise OR | |
| BIT_XOR | Bitwise XOR | |
| BOUNDARY | Synonym for ST_BOUNDARY | |
| BUFFER | Synonym for ST_BUFFER | |
| CASE | Returns the result where value=compare_value or for the first condition that is true | |
| CAST | Casts a value of one type to another type | |
| CEIL | Synonym for CEILING() | |
| CEILING | Returns the smallest integer not less than X | |
| CENTROID | Synonym for ST_CENTROID | |
| CHAR Function | Returns string based on the integer values for the individual characters | |
| CHARACTER_LENGTH | Synonym for CHAR_LENGTH() | |
| CHAR_LENGTH | Length of the string in characters | |
| CHARSET | Returns the character set | |
| CHR | Returns a string consisting of the character given by the code values of the integer | |
| COALESCE | Returns the first non-NULL parameter | |
| COERCIBILITY | Returns the collation coercibility value | |
| COLLATION | Collation of the string argument | |
| COLUMN_ADD | Adds or updates dynamic columns | |
| COLUMN_CHECK | Checks if a dynamic column blob is valid | |
| COLUMN_CREATE | Returns a dynamic columns blob | |
| COLUMN_DELETE | Deletes a dynamic column | |
| COLUMN_EXISTS | Checks is a column exists | |
| COLUMN_GET | Gets a dynamic column value by name | |
| COLUMN_JSON | Returns a JSON representation of dynamic column blob data | |
| COLUMN_LIST | Returns comma-separated list | |
| COMPRESS | Returns a binary, compressed string | |
| CONCAT | Returns concatenated string | |
| CONCAT_WS | Concatenate with separator | |
| CONNECTION_ID | Connection thread ID | |
| CONTAINS | Whether one geometry contains another | |
| CONVERT | Convert a value from one type to another type | |
| CONV | Converts numbers between different number bases | |
| CONVERT_TZ | Converts a datetime from on time zone to another | |
| CONVEXHULL | Synonym for ST_CONVEXHULL | |
| COS | Returns the cosine | |
| COT | Returns the cotangent | |
| COUNT | Returns count of non-null values | |
| COUNT DISTINCT | Returns count of number of different non-NULL values | |
| CRC32 | Computes a cyclic redundancy check value | |
| CRC32C | Computes a cyclic redundancy check value | MariaDB 10.8 |
| CROSSES | Whether two geometries spatially cross | |
| CUME_DIST | Window function that returns the cumulative distribution of a given row | |
| CURDATE | Returns the current date | |
| CURRENT_DATE | Synonym for CURDATE() | |
| CURRENT_ROLE | Current role name | |
| CURRENT_TIME | Synonym for CURTIME() | |
| CURRENT_TIMESTAMP | Synonym for NOW() | |
| CURRENT_USER | Username/host that authenicated the current client | |
| CURTIME | Returns the current time | |
| DATABASE | Current default database | |
| DATE FUNCTION | Extracts the date portion of a datetime | |
| DATEDIFF | Difference in days between two date/time values | |
| DATE_ADD | Date arithmetic - addition | |
| DATE_FORMAT | Formats the date value according to the format string | |
| DATE_SUB | Date arithmetic - subtraction | |
| DAY | Synonym for DAYOFMONTH() | |
| DAYNAME | Return the name of the weekday | |
| DAYOFMONTH | Returns the day of the month | |
| DAYOFWEEK | Returns the day of the week index | |
| DAYOFYEAR | Returns the day of the year | |
| DECODE | Decrypts a string encoded with ENCODE() | |
| DECODE_HISTOGRAM | Returns comma separated numerics corresponding to a probability distribution represented by a histogram | |
| DEFAULT | Returns column default | |
| DEGREES | Converts from radians to degrees | |
| DENSE_RANK | Rank of a given row with identical values receiving the same result, no skipping | |
| DES_DECRYPT | Decrypts a string encrypted with DES_ENCRYPT() | |
| DES_ENCRYPT | Encrypts a string using the Triple-DES algorithm | |
| DIMENSION | Synonym for ST_DIMENSION | |
| DISJOINT | Whether the two elements do not intersect | |
| DIV | Integer division | |
| ELT | Returns the N'th element from a set of strings | |
| ENCODE | Encrypts a string | |
| ENCRYPT | Encrypts a string with Unix crypt() | |
| ENDPOINT | Synonym for ST_ENDPOINT | |
| ENVELOPE | Synonym for ST_ENVELOPE | |
| EQUALS | Indicates whether two geometries are spatially equal | |
| EXP | e raised to the power of the argument | |
| EXPORT_SET | Returns an on string for every bit set, an off string for every bit not set | |
| ExteriorRing | Synonym for ST_ExteriorRing | |
| EXTRACT | Extracts a portion of the date | |
| EXTRACTVALUE | Returns the text of the first text node matched by the XPath expression | |
| FIELD | Returns the index position of a string in a list | |
| FIND_IN_SET | Returns the position of a string in a set of strings | |
| FLOOR | Largest integer value not greater than the argument | |
| FORMAT | Formats a number | |
| FORMAT_PICO_TIME | Given a time in picoseconds, returns a human-readable time value and unit indicator | MariaDB 11.0.2 |
| FOUND_ROWS | Number of (potentially) returned rows | |
| FROM_BASE64 | Given a base-64 encoded string, returns the decoded result as a binary string | |
| FROM_DAYS | Returns a date given a day | |
| FROM_UNIXTIME | Returns a datetime from a Unix timestamp | |
| GeomCollFromText | Synonym for ST_GeomCollFromText | |
| GeomCollFromWKB | Synonym for ST_GeomCollFromWKB | |
| GeometryCollectionFromText | Synonym for ST_GeomCollFromText | |
| GeometryCollectionFromWKB | Synonym for ST_GeomCollFromWKB | |
| GeometryFromText | Synonym for ST_GeomFromText | |
| GeometryFromWKB | Synonym for ST_GeomFromWKB | |
| GeomFromText | Synonym for ST_GeomFromText | |
| GeomFromWKB | Synonym for ST_GeomFromWKB | |
| GeometryN | Synonym for ST_GeometryN | |
| GEOMETRYCOLLECTION | Constructs a WKB GeometryCollection | |
| GeometryType | Synonym for ST_GeometryType | |
| GET_FORMAT | Returns a format string | |
| GET_LOCK | Obtain LOCK | |
| GLENGTH | Length of a LineString value | |
| GREATEST | Returns the largest argument | |
| GROUP_CONCAT | Returns string with concatenated values from a group | |
| HEX | Returns hexadecimal value | |
| HOUR | Returns the hour | |
| IF | If expr1 is TRUE, returns expr2; otherwise returns expr3 | |
| IFNULL | Check whether an expression is NULL | |
| IN | True if expression equals any of the values in the list | |
| INTERVAL | Index of the argument that is less than the first argument | |
| INET6_ATON | Given an IPv6 or IPv4 network address, returns a VARBINARY numeric value | |
| INET6_NTOA | Given an IPv6 or IPv4 network address, returns the address as a nonbinary string | |
| INET_ATON | Returns numeric value of IPv4 address | |
| INET_NTOA | Returns dotted-quad representation of IPv4 address | |
| INSERT Function | Replaces a part of a string with another string | |
| INSTR | Returns the position of a string withing a string | |
| InteriorRingN | Synonym for ST_InteriorRingN | |
| INTERSECTS | Indicates whether two geometries spatially intersect | |
| IS | Tests whether a boolean is TRUE, FALSE, or UNKNOWN | |
| IsClosed | Synonym for ST_IsClosed | |
| IsEmpty | Synonym for ST_IsEmpty | |
| IS_FREE_LOCK | Checks whether lock is free to use | |
| IS_IPV4 | Whether or not an expression is a valid IPv4 address | |
| IS_IPV4_COMPAT | Whether or not an IPv6 address is IPv4-compatible | |
| IS_IPV4_MAPPED | Whether an IPv6 address is a valid IPv4-mapped address | |
| IS_IPV6 | Whether or not an expression is a valid IPv6 address | |
| IS NOT | Tests whether a boolean value is not TRUE, FALSE, or UNKNOWN | |
| IS NOT NULL | Tests whether a value is not NULL | |
| IS NULL | Tests whether a value is NULL | |
| ISNULL | Checks if an expression is NULL | |
| IsRing | Synonym for ST_IsRing | |
| IsSimple | Synonym for ST_IsSimple | |
| IS_USED_LOCK | Check if lock is in use | |
| JSON_ARRAY | Returns a JSON array containing the listed values | |
| JSON_ARRAYAGG | Returns a JSON array containing an element for each value in a given set of JSON or SQL values. | MariaDB 10.5 |
| JSON_ARRAY_INTERSECT | MariaDB 11.2.0 | |
| JSON_ARRAY_APPEND | Appends values to the end of the given arrays within a JSON document | |
| JSON_ARRAY_INSERT | Inserts a value into a JSON document | |
| JSON_COMPACT | Removes all unnecessary spaces so the json document is as short as possible | |
| JSON_CONTAINS | Whether a value is found in a given JSON document or at a specified path within the document | |
| JSON_CONTAINS_PATH | Indicates whether the given JSON document contains data at the specified path or paths | |
| JSON_DEPTH | Maximum depth of a JSON document | |
| JSON_DETAILED | Represents JSON in the most understandable way emphasizing nested structures | |
| JSON_EQUALS | Check for equality between JSON objects. | MariaDB 10.7 |
| JSON_EXISTS | Determines whether a specified JSON value exists in the given data | |
| JSON_EXTRACT | Extracts data from a JSON document. | |
| JSON_INSERT | Inserts data into a JSON document | |
| JSON_KEY_VALUE | Extracts key/value pairs from a JSON object | MariaDB 11.2 |
| JSON_KEYS | Returns keys from top-level value of a JSON object or top-level keys from the path | |
| JSON_LENGTH | Returns the length of a JSON document, or the length of a value within the document | |
| JSON_LOOSE | Adds spaces to a JSON document to make it look more readable | |
| JSON_MERGE | Merges the given JSON documents | |
| JSON_MERGE_PATCH | RFC 7396-compliant merge of the given JSON documents | |
| JSON_MERGE_PRESERVE | Synonym for JSON_MERGE_PATCH. | |
| JSON_NORMALIZE | Recursively sorts keys and removes spaces, allowing comparison of json documents for equality | |
| JSON_OBJECT | Returns a JSON object containing the given key/value pairs | |
| JSON_OBJECT_FILTER_KEYS | MariaDB 11.2.0 | |
| JSON_OBJECT_TO_ARRAY | MariaDB 11.2.0 | |
| JSON_OBJECTAGG | Returns a JSON object containing key-value pairs | |
| JSON_OVERLAPS | Compares two json documents for overlaps | MariaDB 10.9 |
| JSON_PRETTY | Alias for json_detailed | MariaDB 10.10.3, MariaDB 10.9.5, MariaDB 10.8.7, MariaDB 10.7.8, MariaDB 10.6.12, MariaDB 10.5.19 and MariaDB 10.4.28 |
| JSON_QUERY | Given a JSON document, returns an object or array specified by the path | |
| JSON_QUOTE | Quotes a string as a JSON value | |
| JSON_REMOVE | Removes data from a JSON document | |
| JSON_REPLACE | Replaces existing values in a JSON document | |
| JSON_SCHEMA_VALID | Validates a JSON schema | MariaDB 11.1.0 |
| JSON_SEARCH | Returns the path to the given string within a JSON document | |
| JSON_SET | Updates or inserts data into a JSON document | |
| JSON_TABLE | Returns a representation of a JSON document as a relational table | MariaDB 10.6 |
| JSON_TYPE | Returns the type of a JSON value | |
| JSON_UNQUOTE | Unquotes a JSON value, returning a string | |
| JSON_VALID | Whether a value is a valid JSON document or not | |
| JSON_VALUE | Given a JSON document, returns the specified scalar | |
| KDF | Key derivation function | MariaDB 11.3.0 |
| LAST_DAY | Returns the last day of the month | |
| LAST_INSERT_ID | Last inserted autoinc value | |
| LAST_VALUE | Returns the last value in a list | |
| LASTVAL | Get last value generated from a sequence | |
| LCASE | Synonym for [LOWER() | |
| LEAST | Returns the smallest argument | |
| LEFT | Returns the leftmost characters from a string | |
| LENGTH | Length of the string in bytes | |
| LIKE | Whether expression matches a pattern | |
| LineFromText | Synonym for ST_LineFromText | |
| LineFromWKB | Synonym for ST_LineFromWKB | |
| LINESTRING | Constructs a WKB LineString value from a number of WKB Point arguments | |
| LineStringFromText | Synonym for ST_LineFromText | |
| LineStringFromWKB | Synonym for ST_LineFromWKB | |
| LN | Returns natural logarithm | |
| LOAD_FILE | Returns file contents as a string | |
| LOCALTIME | Synonym for NOW() | |
| LOCALTIMESTAMP | Synonym for NOW() | |
| LOCATE | Returns the position of a substring in a string | |
| LOG | Returns the natural logarithm | |
| LOG10 | Returns the base-10 logarithm | |
| LOG2 | Returns the base-2 logarithm | |
| LOWER | Returns a string with all characters changed to lowercase | |
| LPAD | Returns the string left-padded with another string to a given length | |
| LTRIM | Returns the string with leading space characters removed | |
| MAKE_SET | Make a set of strings that matches a bitmask | |
| MAKEDATE | Returns a date given a year and day | |
| MAKETIME | Returns a time | |
| MASTER_GTID_WAIT | Wait until slave reaches the GTID position | |
| MASTER_POS_WAIT | Blocks until the slave has applied all specified updates | |
| MATCH AGAINST | Perform a fulltext search on a fulltext index | |
| MAX | Returns the maximum value | |
| MBRContains | Indicates one Minimum Bounding Rectangle contains another | |
| MBRDisjoint | Indicates whether the Minimum Bounding Rectangles of two geometries are disjoint | |
| MBREqual | Whether the Minimum Bounding Rectangles of two geometries are the same. | |
| MBRIntersects | Indicates whether the Minimum Bounding Rectangles of the two geometries intersect | |
| MBROverlaps | Whether the Minimum Bounding Rectangles of two geometries overlap | |
| MBRTouches | Whether the Minimum Bounding Rectangles of two geometries touch. | |
| MBRWithin | Indicates whether one Minimum Bounding Rectangle is within another | |
| MD5 | MD5 checksum | |
| MEDIAN | Window function that returns the median value of a range of values | |
| MICROSECOND | Returns microseconds from a date or datetime | |
| MID | Synonym for SUBSTRING(str,pos,len) | |
| MIN | Returns the minimum value | |
| MINUTE | Returns a minute from 0 to 59 | |
| MLineFromText | Constructs MULTILINESTRING using its WKT representation and SRID | |
| MLineFromWKB | Constructs a MULTILINESTRING | |
| MOD | Modulo operation. Remainder of N divided by M | |
| MONTH | Returns a month from 1 to 12 | |
| MONTHNAME | Returns the full name of the month | |
| MPointFromText | Constructs a MULTIPOINT value using its WKT and SRID | |
| MPointFromWKB | Constructs a MULTIPOINT value using its WKB representation and SRID | |
| MPolyFromText | Constructs a MULTIPOLYGON value | |
| MPolyFromWKB | Constructs a MULTIPOLYGON value using its WKB representation and SRID | |
| MultiLineStringFromText | Synonym for MLineFromText | |
| MultiLineStringFromWKB | A synonym for MLineFromWKB | |
| MULTIPOINT | Constructs a WKB MultiPoint value | |
| MultiPointFromText | Synonym for MPointFromText | |
| MultiPointFromWKB | Synonym for MPointFromWKB | |
| MULTIPOLYGON | Constructs a WKB MultiPolygon | |
| MultiPolygonFromText | Synonym for MPolyFromText | |
| MultiPolygonFromWKB | Synonym for MPolyFromWKB | |
| MULTILINESTRING | Constructs a MultiLineString value | |
| NAME_CONST | Returns the given value | |
| NATURAL_SORT_KEY | Sorting that is more more similar to natural human sorting | |
| NOT LIKE | Same as NOT(expr LIKE pat [ESCAPE 'escape_char']) | |
| NOT REGEXP | Same as NOT (expr REGEXP pat) | |
| NULLIF | Returns NULL if expr1 = expr2 | |
| NEXTVAL | Generate next value for sequence | |
| NOT BETWEEN | Same as NOT (expr BETWEEN min AND max) | |
| NOT IN | Same as NOT (expr IN (value,...)) | |
| NOW | Returns the current date and time | |
| NTILE | Returns an integer indicating which group a given row falls into | |
| NumGeometries | Synonym for ST_NumGeometries | |
| NumInteriorRings | Synonym for NumInteriorRings | |
| NumPoints | Synonym for ST_NumPoints | |
| OCT | Returns octal value | |
| OCTET_LENGTH | Synonym for LENGTH() | |
| OLD_PASSWORD | Pre MySQL 4.1 password implementation | |
| ORD | Return ASCII or character code | |
| OVERLAPS | Indicates whether two elements spatially overlap | |
| PASSWORD | Calculates a password string | |
| PERCENT_RANK | Window function that returns the relative percent rank of a given row | |
| PERCENTILE_CONT | Returns a value which corresponds to the given fraction in the sort order. | |
| PERCENTILE_DISC | Returns the first value in the set whose ordered position is the same or more than the specified fraction. | |
| PERIOD_ADD | Add months to a period | |
| PERIOD_DIFF | Number of months between two periods | |
| PI | Returns the value of π (pi) | |
| POINT | Constructs a WKB Point | |
| PointFromText | Synonym for ST_PointFromText | |
| PointFromWKB | Synonym for PointFromWKB | |
| PointN | Synonym for PointN | |
| PointOnSurface | Synonym for ST_PointOnSurface | |
| POLYGON | Constructs a WKB Polygon value from a number of WKB LineString arguments | |
| PolyFromText | Synonym for ST_PolyFromText | |
| PolyFromWKB | Synonym for ST_PolyFromWKB | |
| PolygonFromText | Synonym for ST_PolyFromText | |
| PolygonFromWKB | Synonym for ST_PolyFromWKB | |
| POSITION | Returns the position of a substring in a string | |
| POW | Returns X raised to the power of Y | |
| POWER | Synonym for POW() | |
| QUARTER | Returns year quarter from 1 to 4 | |
| QUOTE | Returns quoted, properly escaped string | |
| RADIANS | Converts from degrees to radians | |
| RAND | Random floating-point value | |
| RANK | Rank of a given row with identical values receiving the same result | |
| REGEXP | Performs pattern matching | |
| REGEXP_INSTR | Position of the first appearance of a regex | |
| REGEXP_REPLACE | Replaces all occurrences of a pattern | |
| REGEXP_SUBSTR | Returns the matching part of a string | |
| RELEASE_LOCK | Releases lock obtained with GET_LOCK() | |
| REPEAT Function | Returns a string repeated a number of times | |
| REPLACE Function | Replace occurrences of a string | |
| REVERSE | Reverses the order of a string | |
| RIGHT | Returns the rightmost N characters from a string | |
| RLIKE | Synonym for REGEXP() | |
| RPAD | Returns the string right-padded with another string to a given length | |
| ROUND | Rounds a number | |
| ROW_COUNT | Number of rows affected by previous statement | |
| ROW_NUMBER | Row number of a given row with identical values receiving a different result | |
| RTRIM | Returns the string with trailing space characters removed | |
| SCHEMA | Synonym for DATABASE() | |
| SECOND | Returns the second of a time | |
| SEC_TO_TIME | Converts a second to a time | |
| SETVAL | Set the next value to be returned by a sequence | |
| SESSION_USER | Synonym for USER() | |
| SHA | Synonym for SHA1() | |
| SHA1 | Calculates an SHA-1 checksum | |
| SHA2 | Calculates an SHA-2 checksum | |
| SIGN | Returns 1, 0 or -1 | |
| SIN | Returns the sine | |
| SLEEP | Pauses for the given number of seconds | |
| SOUNDEX | Returns a string based on how the string sounds | |
| SOUNDS LIKE | SOUNDEX(expr1) = SOUNDEX(expr2) | |
| SPACE | Returns a string of space characters | |
| SPIDER_BG_DIRECT_SQL | Background SQL execution | |
| SPIDER_COPY_TABLES | Copy table data | |
| SPIDER_DIRECT_SQL | Execute SQL on the remote server | |
| SPIDER_FLUSH_TABLE_MON_CACHE | Refreshing Spider monitoring server information | |
| SQRT | Square root | |
| SRID | Synonym for ST_SRID | |
| ST_AREA | Area of a Polygon | |
| ST_AsBinary | Converts a value to its WKB representation | |
| ST_AsText | Converts a value to its WKT-Definition | |
| ST_AsWKB | Synonym for ST_AsBinary | |
| ST_ASWKT | Synonym for ST_ASTEXT() | |
| ST_BOUNDARY | Returns a geometry that is the closure of a combinatorial boundary | |
| ST_BUFFER | A new geometry with a buffer added to the original geometry | |
| ST_CENTROID | The mathematical centroid (geometric center) for a MultiPolygon | |
| ST_CONTAINS | Whether one geometry is contained by another | |
| ST_CONVEXHULL | The minimum convex geometry enclosing all geometries within the set | |
| ST_CROSSES | Whether two geometries spatially cross | |
| ST_DIFFERENCE | Point set difference | |
| ST_DIMENSION | Inherent dimension of a geometry value | |
| ST_DISJOINT | Whether one geometry is spatially disjoint from another | |
| ST_DISTANCE | The distance between two geometries | |
| ST_DISTANCE_SPHERE | The spherical distance between two geometries | |
| ST_ENDPOINT | Returns the endpoint of a LineString | |
| ST_ENVELOPE | Returns the Minimum Bounding Rectangle for a geometry value | |
| ST_EQUALS | Whether two geometries are spatoially equal | |
| ST_ExteriorRing | Returns the exterior ring of a Polygon as a LineString | |
| ST_GeoHash | Returns a geohash. | MariaDB 11.7 |
| ST_GeomCollFromText | Constructs a GEOMETRYCOLLECTION value | |
| ST_GeomCollFromWKB | Constructs a GEOMETRYCOLLECTION value from a WKB | |
| ST_GeometryCollectionFromText | Synonym for ST_GeomCollFromText | |
| ST_GeometryCollectionFromWKB | Synonym for ST_GeomCollFromWKB | |
| ST_GeometryFromText | Synonym for ST_GeomFromText | |
| ST_GeometryFromWKB | Synonym for ST_GeomFromWKB | |
| ST_GEOMETRYN | Returns the N-th geometry in a GeometryCollection | |
| ST_GEOMETRYTYPE | Returns name of the geometry type of which a given geometry instance is a member | |
| ST_GeomFromText | Constructs a geometry value using its WKT and SRID | |
| ST_GeomFromWKB | Constructs a geometry value using its WKB representation and SRID | |
| ST_InteriorRingN | Returns the N-th interior ring for a Polygon | |
| ST_INTERSECTION | The intersection, or shared portion, of two geometries | |
| ST_INTERSECTS | Whether two geometries spatially intersect | |
| ST_ISCLOSED | Returns true if a given LINESTRING's start and end points are the same | |
| ST_ISEMPTY | Indicated validity of geometry value | |
| ST_IsRing | Returns true if a given LINESTRING is both ST_IsClosed and ST_IsSimple | |
| ST_IsSimple | Returns true if the given Geometry has no anomalous geometric points | |
| ST_IsValid | Returns 1 if the argument is geometrically valid, 0 if not. | MariaDB 11.7 |
| ST_LatFromGeoHash | Returns a latitude from the given geohash. | MariaDB 11.7 |
| ST_LongFromGeoHash | Returns a longitude from the given geohash. | MariaDB 11.7 |
| ST_LENGTH | Length of a LineString value | |
| ST_LineFromText | Creates a linestring value | |
| ST_LineFromWKB | Constructs a LINESTRING using its WKB and SRID | |
| ST_LineStringFromText | Synonym for ST_LineFromText | |
| ST_LineStringFromWKB | Synonym for ST_LineFromWKB | |
| ST_NUMGEOMETRIES | Number of geometries in a GeometryCollection | |
| ST_NumInteriorRings | Number of interior rings in a Polygon | |
| ST_NUMPOINTS | Returns the number of Point objects in a LineString | |
| ST_OVERLAPS | Whether two geometries overlap | |
| ST_PointFromText | Constructs a POINT value | |
| ST_PointFromWKB | Constructs POINT using its WKB and SRID | |
| ST_POINTN | Returns the N-th Point in the LineString | |
| ST_POINTONSURFACE | Returns a POINT guaranteed to intersect a surface | |
| ST_PolyFromText | Constructs a POLYGON value | |
| ST_PolyFromWKB | Constructs POLYGON value using its WKB representation and SRID | |
| ST_PolygonFromText | Synonym for ST_PolyFromText | |
| ST_PolygonFromWKB | Synonym for ST_PolyFromWKB | |
| ST_RELATE | Returns true if two geometries are related | |
| ST_Simplify | Applies the Ramer–Douglas–Peucker algorithm to provide generalized simplifications. | MariaDB 11.7 |
| ST_SRID | Returns a Spatial Reference System ID | |
| ST_STARTPOINT | Returns the start point of a LineString | |
| ST_SYMDIFFERENCE | Portions of two geometries that don't intersect | |
| ST_TOUCHES | Whether one geometry g1 spatially touches another | |
| ST_UNION | Union of two geometries | |
| ST_Validate | Whether a geometry is compliant with the WKB format and SRID syntax, and is geometrically valid. | MariaDB 11.7 |
| ST_WITHIN | Whether one geometry is within another | |
| ST_X | X-coordinate value for a point | |
| ST_Y | Y-coordinate for a point | |
| STARTPOINT | Synonym for ST_StartPoint | |
| STD | Population standard deviation | |
| STDDEV | Population standard deviation | |
| STDDEV_POP | Returns the population standard deviation | |
| STDDEV_SAMP | Standard deviation | |
| STR_TO_DATE | Converts a string to date | |
| STRCMP | Compares two strings in sort order | |
| SUBDATE | Subtract a date unit or number of days | |
| SUBSTR | Returns a substring from string starting at a given position | |
| SUBSTRING | Returns a substring from string starting at a given position | |
| SUBSTRING_INDEX | Returns the substring from string before count occurrences of a delimiter | |
| SUBTIME | Subtracts a time from a date/time | |
| SUM | Sum total | |
| SYS.EXTRACT_SCHEMA_FROM_FILE_NAME | Given a file path, returns the schema (database) name | MariaDB 10.6 |
| SYS.EXTRACT_TABLE_FROM_FILE_NAME | Given a file path, returns the table name | MariaDB 10.6 |
| SYS.FORMAT_BYTES | Returns a string consisting of a value and the units in a human-readable format | MariaDB 10.6 |
| SYS.FORMAT_PATH | Returns a modified path after replacing subpaths matching the values of various system variables with the variable name | MariaDB 10.6 |
| SYS.FORMAT_STATEMENT | Returns a reduced length string | MariaDB 10.6 |
| SYS.FORMAT_TIME | Returns a human-readable time value and unit indicator | MariaDB 10.6 |
| SYS.LIST_ADD | Adds a value to a given list | MariaDB 10.6 |
| SYS.LIST_DROP | Drops a value from a given list | MariaDB 10.6 |
| SYS.PS_IS_ACCOUNT_ENABLED | Whether Performance Schema instrumentation for the given account is enabled | MariaDB 10.6 |
| SYS.PS_IS_CONSUMER_ENABLED | Whether Performance Schema instrumentation for the given consumer is enabled | MariaDB 10.6 |
| SYS.PS_IS_INSTRUMENT_DEFAULT_ENABLED | Whether a given Performance Schema instrument is enabled by default | MariaDB 10.6 |
| SYS.PS_IS_INSTRUMENT_DEFAULT_TIMED | Returns whether a given Performance Schema instrument is timed by default | MariaDB 10.6 |
| SYS.PS_IS_THREAD_INSTRUMENTED | Returns whether or not Performance Schema instrumentation for the given connection_id is enabled | MariaDB 10.6 |
| SYS.PS_THREAD_ACCOUNT | Returns the account (username@hostname) associated with the given thread_id | MariaDB 10.6 |
| SYS.PS_THREAD_ID | Returns the thread_id associated with the given connection_id | MariaDB 10.6 |
| SYS.PS_THREAD_STACK | Returns all statements, stages, and events within the Performance Schema for a given thread_id | MariaDB 10.6 |
| SYS.PS_THREAD_TRX_INFO | Returns a JSON object with information about the thread specified by the given thread_id | MariaDB 10.6 |
| SYS.QUOTE_IDENTIFIER | Quotes a string to produce a result that can be used as an identifier in an SQL statement | MariaDB 10.6 |
| SYS.SYS_GET_CONFIG | Returns a configuration option value from the sys_config table | MariaDB 10.6 |
| SYS.VERSION_MAJOR | Returns the MariaDB Server major release version | MariaDB 10.6 |
| SYS.VERSION_MINOR | Returns the MariaDB Server minor release version | MariaDB 10.6 |
| SYS.VERSION_PATCH | Returns the MariaDB Server patch release version | MariaDB 10.6 |
| SYS_GUID | Generates a globally unique identifier | |
| SYSDATE | Returns the current date and time | |
| SYSTEM_USER | Synonym for USER() | |
| TAN | Returns the tangent | |
| TIME function | Extracts the time | |
| TIMEDIFF | Returns the difference between two date/times | |
| TIMESTAMP FUNCTION | Return the datetime, or add a time to a date/time | |
| TIMESTAMPADD | Add interval to a date or datetime | |
| TIMESTAMPDIFF | Difference between two datetimes | |
| TIME_FORMAT | Formats the time value according to the format string | |
| TIME_TO_SEC | Returns the time argument, converted to seconds | |
| TO_BASE64 | Converts a string to its base-64 encoded form | |
| TO_CHAR | Converts a date/time type to a char | |
| TO_DAYS | Number of days since year 0 | |
| TO_SECONDS | Number of seconds since year 0 | |
| TOUCHES | Whether two geometries spatially touch | |
| TRIM | Returns a string with all given prefixes or suffixes removed | |
| TRUNCATE | Truncates X to D decimal places | |
| UCASE | Synonym for UPPER]]() | |
| UNHEX | Interprets pairs of hex digits as a number and converts to the character represented by the number | |
| UNCOMPRESS | Uncompresses string compressed with COMPRESS() | |
| UNCOMPRESSED_LENGTH | Returns length of a string before being compressed with COMPRESS() | |
| UNIX_TIMESTAMP | Returns a Unix timestamp | |
| UPDATEXML | Replace XML | |
| UPPER | Changes string to uppercase | |
| USER | Current user/host | |
| UTC_DATE | Returns the current UTC date | |
| UTC_TIME | Returns the current UTC time | |
| UTC_TIMESTAMP | Returns the current UTC date and time | |
| UUID | Returns a Universal Unique Identifier v1 | |
| UUIDv4 | Returns a Universal Unique Identifier v4 | MariaDB 11.7 |
| UUIDv7 | Returns a Universal Unique Identifier v7 | MariaDB 11.7 |
| UUID_SHORT | Return short universal identifier | |
| VALUES or VALUE | Refer to columns in INSERT ... ON DUPLICATE KEY UPDATE | |
| VAR_POP | Population standard variance | |
| VAR_SAMP | Returns the sample variance | |
| VARIANCE | Population standard variance | |
| VEC_DISTANCE | Calculates a Euclidean (L2) distance between two points. | MariaDB 11.6.0 Vector |
| VEC_FromText | Converts a text representation of the vector to a vector. | MariaDB 11.6.0 Vector |
| VEC_ToText | Converts a binary vector into a json array of numbers (floats). | MariaDB 11.6.0 Vector |
| VERSION | MariaDB server version | |
| WEEK | Returns the week number | |
| WEEKDAY | Returns the weekday index | |
| WEEKOFYEAR | Returns the calendar week of the date as a number in the range from 1 to 53 | |
| WEIGHT_STRING | Weight of the input string | |
| WITHIN | Indicate whether a geographic element is spacially within another | |
| WSREP_LAST_SEEN_GTID | Returns the Global Transaction ID of the most recent write transaction observed by the client. | |
| WSREP_LAST_WRITTEN_GTID | Returns the Global Transaction ID of the most recent write transaction performed by the client. | |
| WSREP_SYNC_WAIT_UPTO_GTID | Blocks the client until the transaction specified by the given Global Transaction ID is applied and committed by the node | |
| X | Synonym for ST_X | |
| Y | Synonym for ST_Y | |
| YEAR | Returns the year for the given date | |
| YEARWEEK | Returns year and week for a date |
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