参考：Function and Operator Reference
| Name | Description |
|---|---|
ABS() |
Return the absolute value |
ACOS() |
Return the arc cosine |
ADDDATE() |
Add time values (intervals) to a date value |
ADDTIME() |
Add time |
AES_DECRYPT() |
Decrypt using AES |
AES_ENCRYPT() |
Encrypt using AES |
AND, && |
Logical AND |
ANY_VALUE() |
Suppress ONLY_FULL_GROUP_BY value rejection |
Area() (deprecated 5.7.6) |
Return Polygon or MultiPolygon area |
AsBinary(), AsWKB() (deprecated 5.7.6) |
Convert from internal geometry format to WKB |
ASCII() |
Return numeric value of left-most character |
ASIN() |
Return the arc sine |
= |
Assign a value (as part of a SET statement, or as part of the SET clause in an UPDATE statement) |
:= |
Assign a value |
AsText(), AsWKT() (deprecated 5.7.6) |
Convert from internal geometry format to WKT |
ASYMMETRIC_DECRYPT() |
Decrypt ciphertext using private or public key |
ASYMMETRIC_DERIVE() |
Derive symmetric key from asymmetric keys |
ASYMMETRIC_ENCRYPT() |
Encrypt cleartext using private or public key |
ASYMMETRIC_SIGN() |
Generate signature from digest |
ASYMMETRIC_VERIFY() |
Verify that signature matches digest |
ATAN() |
Return the arc tangent |
ATAN2(), ATAN() |
Return the arc tangent of the two arguments |
AVG() |
Return the average value of the argument |
BENCHMARK() |
Repeatedly execute an expression |
BETWEEN ... AND ... |
Check whether a value is within a range of values |
BIN() |
Return a string containing binary representation of a number |
BINARY |
Cast a string to a binary string |
BIT_AND() |
Return bitwise AND |
BIT_COUNT() |
Return the number of bits that are set |
BIT_LENGTH() |
Return length of argument in bits |
BIT_OR() |
Return bitwise OR |
BIT_XOR() |
Return bitwise XOR |
& |
Bitwise AND |
~ |
Bitwise inversion |
| |
Bitwise OR |
^ |
Bitwise XOR |
Buffer() (deprecated 5.7.6) |
Return geometry of points within given distance from geometry |
CASE |
Case operator |
CAST() |
Cast a value as a certain type |
CEIL() |
Return the smallest integer value not less than the argument |
CEILING() |
Return the smallest integer value not less than the argument |
Centroid() (deprecated 5.7.6) |
Return centroid as a point |
CHAR() |
Return the character for each integer passed |
CHAR_LENGTH() |
Return number of characters in argument |
CHARACTER_LENGTH() |
Synonym for CHAR_LENGTH() |
CHARSET() |
Return the character set of the argument |
COALESCE() |
Return the first non-NULL argument |
COERCIBILITY() |
Return the collation coercibility value of the string argument |
COLLATION() |
Return the collation of the string argument |
COMPRESS() |
Return result as a binary string |
CONCAT() |
Return concatenated string |
CONCAT_WS() |
Return concatenate with separator |
CONNECTION_ID() |
Return the connection ID (thread ID) for the connection |
Contains() (deprecated 5.7.6) |
Whether MBR of one geometry contains MBR of another |
CONV() |
Convert numbers between different number bases |
CONVERT() |
Cast a value as a certain type |
CONVERT_TZ() |
Convert from one timezone to another |
ConvexHull() (deprecated 5.7.6) |
Return convex hull of geometry |
COS() |
Return the cosine |
COT() |
Return the cotangent |
COUNT() |
Return a count of the number of rows returned |
COUNT(DISTINCT) |
Return the count of a number of different values |
CRC32() |
Compute a cyclic redundancy check value |
CREATE_ASYMMETRIC_PRIV_KEY() |
Create private key |
CREATE_ASYMMETRIC_PUB_KEY() |
Create public key |
CREATE_DH_PARAMETERS() |
Generate shared DH secret |
CREATE_DIGEST() |
Generate digest from string |
Crosses() (deprecated 5.7.6) |
Whether one geometry crosses another |
CURDATE() |
Return the current date |
CURRENT_DATE(), CURRENT_DATE |
Synonyms for CURDATE() |
CURRENT_TIME(), CURRENT_TIME |
Synonyms for CURTIME() |
CURRENT_TIMESTAMP(), CURRENT_TIMESTAMP |
Synonyms for NOW() |
CURRENT_USER(), CURRENT_USER |
The authenticated user name and host name |
CURTIME() |
Return the current time |
DATABASE() |
Return the default (current) database name |
DATE() |
Extract the date part of a date or datetime expression |
DATE_ADD() |
Add time values (intervals) to a date value |
DATE_FORMAT() |
Format date as specified |
DATE_SUB() |
Subtract a time value (interval) from a date |
DATEDIFF() |
Subtract two dates |
DAY() |
Synonym for DAYOFMONTH() |
DAYNAME() |
Return the name of the weekday |
DAYOFMONTH() |
Return the day of the month (0-31) |
DAYOFWEEK() |
Return the weekday index of the argument |
DAYOFYEAR() |
Return the day of the year (1-366) |
DECODE() |
Decodes a string encrypted using ENCODE() |
DEFAULT() |
Return the default value for a table column |
DEGREES() |
Convert radians to degrees |
DES_DECRYPT() (deprecated 5.7.6) |
Decrypt a string |
DES_ENCRYPT() (deprecated 5.7.6) |
Encrypt a string |
Dimension() (deprecated 5.7.6) |
Dimension of geometry |
Disjoint() (deprecated 5.7.6) |
Whether MBRs of two geometries are disjoint |
Distance() (deprecated 5.7.6) |
The distance of one geometry from another |
DIV |
Integer division |
/ |
Division operator |
ELT() |
Return string at index number |
ENCODE() |
Encode a string |
ENCRYPT() (deprecated 5.7.6) |
Encrypt a string |
EndPoint() (deprecated 5.7.6) |
End Point of LineString |
Envelope() (deprecated 5.7.6) |
Return MBR of geometry |
= |
Equal operator |
<=> |
NULL-safe equal to operator |
Equals() (deprecated 5.7.6) |
Whether MBRs of two geometries are equal |
EXP() |
Raise to the power of |
EXPORT_SET() |
Return a string such that for every bit set in the value bits, you get an on string and for every unset bit, you get an off string |
ExteriorRing() (deprecated 5.7.6) |
Return exterior ring of Polygon |
EXTRACT() |
Extract part of a date |
ExtractValue() |
Extracts a value from an XML string using XPath notation |
FIELD() |
Return the index (position) of the first argument in the subsequent arguments |
FIND_IN_SET() |
Return the index position of the first argument within the second argument |
FLOOR() |
Return the largest integer value not greater than the argument |
FORMAT() |
Return a number formatted to specified number of decimal places |
FOUND_ROWS() |
For a SELECT with a LIMIT clause, the number of rows that would be returned were there no LIMIT clause |
FROM_BASE64() |
Decode to a base-64 string and return result |
FROM_DAYS() |
Convert a day number to a date |
FROM_UNIXTIME() |
Format UNIX timestamp as a date |
GeomCollFromText(), GeometryCollectionFromText() (deprecated 5.7.6) |
Return geometry collection from WKT |
GeomCollFromWKB(), GeometryCollectionFromWKB() (deprecated 5.7.6) |
Return geometry collection from WKB |
GeometryCollection() |
Construct geometry collection from geometries |
GeometryN() (deprecated 5.7.6) |
Return N-th geometry from geometry collection |
GeometryType() (deprecated 5.7.6) |
Return name of geometry type |
GeomFromText(), GeometryFromText() (deprecated 5.7.6) |
Return geometry from WKT |
GeomFromWKB(), GeometryFromWKB() (deprecated 5.7.6) |
Return geometry from WKB |
GET_FORMAT() |
Return a date format string |
GET_LOCK() |
Get a named lock |
GLength() (deprecated 5.7.6) |
Return length of LineString |
> |
Greater than operator |
>= |
Greater than or equal operator |
GREATEST() |
Return the largest argument |
GROUP_CONCAT() |
Return a concatenated string |
GTID_SUBSET() |
Return true if all GTIDs in subset are also in set; otherwise false. |
GTID_SUBTRACT() |
Return all GTIDs in set that are not in subset. |
HEX() |
Return a hexadecimal representation of a decimal or string value |
HOUR() |
Extract the hour |
IF() |
If/else construct |
IFNULL() |
Null if/else construct |
IN() |
Check whether a value is within a set of values |
INET_ATON() |
Return the numeric value of an IP address |
INET_NTOA() |
Return the IP address from a numeric value |
INET6_ATON() |
Return the numeric value of an IPv6 address |
INET6_NTOA() |
Return the IPv6 address from a numeric value |
INSERT() |
Insert a substring at the specified position up to the specified number of characters |
INSTR() |
Return the index of the first occurrence of substring |
InteriorRingN() (deprecated 5.7.6) |
Return N-th interior ring of Polygon |
Intersects() (deprecated 5.7.6) |
Whether MBRs of two geometries intersect |
INTERVAL() |
Return the index of the argument that is less than the first argument |
IS |
Test a value against a boolean |
IS_FREE_LOCK() |
Whether the named lock is free |
IS_IPV4() |
Whether argument is an IPv4 address |
IS_IPV4_COMPAT() |
Whether argument is an IPv4-compatible address |
IS_IPV4_MAPPED() |
Whether argument is an IPv4-mapped address |
IS_IPV6() |
Whether argument is an IPv6 address |
IS NOT |
Test a value against a boolean |
IS NOT NULL |
NOT NULL value test |
IS NULL |
NULL value test |
IS_USED_LOCK() |
Whether the named lock is in use; return connection identifier if true |
IsClosed() (deprecated 5.7.6) |
Whether a geometry is closed and simple |
IsEmpty() (deprecated 5.7.6) |
Placeholder function |
ISNULL() |
Test whether the argument is NULL |
IsSimple() (deprecated 5.7.6) |
Whether a geometry is simple |
JSON_APPEND() |
Append data to JSON document |
JSON_ARRAY() |
Create JSON array |
JSON_ARRAY_APPEND() |
Append data to JSON document |
JSON_ARRAY_INSERT() |
Insert into JSON array |
-> |
Return value from JSON column after evaluating path; equivalent to JSON_EXTRACT(). |
JSON_CONTAINS() |
Whether JSON document contains specific object at path |
JSON_CONTAINS_PATH() |
Whether JSON document contains any data at path |
JSON_DEPTH() |
Maximum depth of JSON document |
JSON_EXTRACT() |
Return data from JSON document |
->> |
Return value from JSON column after evaluating path and unquoting the result; equivalent to JSON_UNQUOTE(JSON_EXTRACT()). |
JSON_INSERT() |
Insert data into JSON document |
JSON_KEYS() |
Array of keys from JSON document |
JSON_LENGTH() |
Number of elements in JSON document |
JSON_MERGE() |
Merge JSON documents |
JSON_OBJECT() |
Create JSON object |
JSON_QUOTE() |
Quote JSON document |
JSON_REMOVE() |
Remove data from JSON document |
JSON_REPLACE() |
Replace values in JSON document |
JSON_SEARCH() |
Path to value within JSON document |
JSON_SET() |
Insert data into JSON document |
JSON_TYPE() |
Type of JSON value |
JSON_UNQUOTE() |
Unquote JSON value |
JSON_VALID() |
Whether JSON value is valid |
LAST_DAY |
Return the last day of the month for the argument |
LAST_INSERT_ID() |
Value of the AUTOINCREMENT column for the last INSERT |
LCASE() |
Synonym for LOWER() |
LEAST() |
Return the smallest argument |
LEFT() |
Return the leftmost number of characters as specified |
<< |
Left shift |
LENGTH() |
Return the length of a string in bytes |
< |
Less than operator |
<= |
Less than or equal operator |
LIKE |
Simple pattern matching |
LineFromText(), LineStringFromText() (deprecated 5.7.6) |
Construct LineString from WKT |
LineFromWKB(), LineStringFromWKB() (deprecated 5.7.6) |
Construct LineString from WKB |
LineString() |
Construct LineString from Point values |
LN() |
Return the natural logarithm of the argument |
LOAD_FILE() |
Load the named file |
LOCALTIME(), LOCALTIME |
Synonym for NOW() |
LOCALTIMESTAMP, LOCALTIMESTAMP() |
Synonym for NOW() |
LOCATE() |
Return the position of the first occurrence of substring |
LOG() |
Return the natural logarithm of the first argument |
LOG10() |
Return the base-10 logarithm of the argument |
LOG2() |
Return the base-2 logarithm of the argument |
LOWER() |
Return the argument in lowercase |
LPAD() |
Return the string argument, left-padded with the specified string |
LTRIM() |
Remove leading spaces |
MAKE_SET() |
Return a set of comma-separated strings that have the corresponding bit in bits set |
MAKEDATE() |
Create a date from the year and day of year |
MAKETIME() |
Create time from hour, minute, second |
MASTER_POS_WAIT() |
Block until the slave has read and applied all updates up to the specified position |
MATCH |
Perform full-text search |
MAX() |
Return the maximum value |
MBRContains() |
Whether MBR of one geometry contains MBR of another |
MBRCoveredBy() |
Whether one MBR is covered by another |
MBRCovers() |
Whether one MBR covers another |
MBRDisjoint() |
Whether MBRs of two geometries are disjoint |
MBREqual() (deprecated 5.7.6) |
Whether MBRs of two geometries are equal |
MBREquals() |
Whether MBRs of two geometries are equal |
MBRIntersects() |
Whether MBRs of two geometries intersect |
MBROverlaps() |
Whether MBRs of two geometries overlap |
MBRTouches() |
Whether MBRs of two geometries touch |
MBRWithin() |
Whether MBR of one geometry is within MBR of another |
MD5() |
Calculate MD5 checksum |
MICROSECOND() |
Return the microseconds from argument |
MID() |
Return a substring starting from the specified position |
MIN() |
Return the minimum value |
- |
Minus operator |
MINUTE() |
Return the minute from the argument |
MLineFromText(), MultiLineStringFromText() (deprecated 5.7.6) |
Construct MultiLineString from WKT |
MLineFromWKB(), MultiLineStringFromWKB() (deprecated 5.7.6) |
Construct MultiLineString from WKB |
MOD() |
Return the remainder |
%, MOD |
Modulo operator |
MONTH() |
Return the month from the date passed |
MONTHNAME() |
Return the name of the month |
MPointFromText(), MultiPointFromText() (deprecated 5.7.6) |
Construct MultiPoint from WKT |
MPointFromWKB(), MultiPointFromWKB() (deprecated 5.7.6) |
Construct MultiPoint from WKB |
MPolyFromText(), MultiPolygonFromText() (deprecated 5.7.6) |
Construct MultiPolygon from WKT |
MPolyFromWKB(), MultiPolygonFromWKB() (deprecated 5.7.6) |
Construct MultiPolygon from WKB |
MultiLineString() |
Contruct MultiLineString from LineString values |
MultiPoint() |
Construct MultiPoint from Point values |
MultiPolygon() |
Construct MultiPolygon from Polygon values |
NAME_CONST() |
Causes the column to have the given name |
NOT, ! |
Negates value |
NOT BETWEEN ... AND ... |
Check whether a value is not within a range of values |
!=, <> |
Not equal operator |
NOT IN() |
Check whether a value is not within a set of values |
NOT LIKE |
Negation of simple pattern matching |
NOT REGEXP |
Negation of REGEXP |
NOW() |
Return the current date and time |
NULLIF() |
Return NULL if expr1 = expr2 |
NumGeometries() (deprecated 5.7.6) |
Return number of geometries in geometry collection |
NumInteriorRings() (deprecated 5.7.6) |
Return number of interior rings in Polygon |
NumPoints() (deprecated 5.7.6) |
Return number of points in LineString |
OCT() |
Return a string containing octal representation of a number |
OCTET_LENGTH() |
Synonym for LENGTH() |
OLD_PASSWORD() |
Return the value of the pre-4.1 implementation of PASSWORD |
||, OR |
Logical OR |
ORD() |
Return character code for leftmost character of the argument |
Overlaps() (deprecated 5.7.6) |
Whether MBRs of two geometries overlap |
PASSWORD() (deprecated 5.7.6) |
Calculate and return a password string |
PERIOD_ADD() |
Add a period to a year-month |
PERIOD_DIFF() |
Return the number of months between periods |
PI() |
Return the value of pi |
+ |
Addition operator |
Point() |
Construct Point from coordinates |
PointFromText() (deprecated 5.7.6) |
Construct Point from WKT |
PointFromWKB() (deprecated 5.7.6) |
Construct Point from WKB |
PointN() (deprecated 5.7.6) |
Return N-th point from LineString |
PolyFromText(), PolygonFromText() (deprecated 5.7.6) |
Construct Polygon from WKT |
PolyFromWKB(), PolygonFromWKB() (deprecated 5.7.6) |
Construct Polygon from WKB |
Polygon() |
Construct Polygon from LineString arguments |
POSITION() |
Synonym for LOCATE() |
POW() |
Return the argument raised to the specified power |
POWER() |
Return the argument raised to the specified power |
PROCEDURE ANALYSE() |
Analyze the results of a query |
QUARTER() |
Return the quarter from a date argument |
QUOTE() |
Escape the argument for use in an SQL statement |
RADIANS() |
Return argument converted to radians |
RAND() |
Return a random floating-point value |
RANDOM_BYTES() |
Return a random byte vector |
REGEXP |
Pattern matching using regular expressions |
RELEASE_ALL_LOCKS() |
Releases all current named locks |
RELEASE_LOCK() |
Releases the named lock |
REPEAT() |
Repeat a string the specified number of times |
REPLACE() |
Replace occurrences of a specified string |
REVERSE() |
Reverse the characters in a string |
RIGHT() |
Return the specified rightmost number of characters |
>> |
Right shift |
RLIKE |
Synonym for REGEXP |
ROUND() |
Round the argument |
ROW_COUNT() |
The number of rows updated |
RPAD() |
Append string the specified number of times |
RTRIM() |
Remove trailing spaces |
SCHEMA() |
Synonym for DATABASE() |
SEC_TO_TIME() |
Converts seconds to 'HH:MM:SS' format |
SECOND() |
Return the second (0-59) |
SESSION_USER() |
Synonym for USER() |
SHA1(), SHA() |
Calculate an SHA-1 160-bit checksum |
SHA2() |
Calculate an SHA-2 checksum |
SIGN() |
Return the sign of the argument |
SIN() |
Return the sine of the argument |
SLEEP() |
Sleep for a number of seconds |
SOUNDEX() |
Return a soundex string |
SOUNDS LIKE |
Compare sounds |
SPACE() |
Return a string of the specified number of spaces |
SQRT() |
Return the square root of the argument |
SRID() (deprecated 5.7.6) |
Return spatial reference system ID for geometry |
ST_Area() |
Return Polygon or MultiPolygon area |
ST_AsBinary(), ST_AsWKB() |
Convert from internal geometry format to WKB |
ST_AsGeoJSON() |
Generate GeoJSON object from geometry |
ST_AsText(), ST_AsWKT() |
Convert from internal geometry format to WKT |
ST_Buffer() |
Return geometry of points within given distance from geometry |
ST_Buffer_Strategy() |
Produce strategy option for ST_Buffer() |
ST_Centroid() |
Return centroid as a point |
ST_Contains() |
Whether one geometry contains another |
ST_ConvexHull() |
Return convex hull of geometry |
ST_Crosses() |
Whether one geometry crosses another |
ST_Difference() |
Return point set difference of two geometries |
ST_Dimension() |
Dimension of geometry |
ST_Disjoint() |
Whether one geometry is disjoint from another |
ST_Distance() |
The distance of one geometry from another |
ST_Distance_Sphere() |
Minimum distance on earth between two geometries |
ST_EndPoint() |
End Point of LineString |
ST_Envelope() |
Return MBR of geometry |
ST_Equals() |
Whether one geometry is equal to another |
ST_ExteriorRing() |
Return exterior ring of Polygon |
ST_GeoHash() |
Produce a geohash value |
ST_GeomCollFromText(), ST_GeometryCollectionFromText(), ST_GeomCollFromTxt() |
Return geometry collection from WKT |
ST_GeomCollFromWKB(), ST_GeometryCollectionFromWKB() |
Return geometry collection from WKB |
ST_GeometryN() |
Return N-th geometry from geometry collection |
ST_GeometryType() |
Return name of geometry type |
ST_GeomFromGeoJSON() |
Generate geometry from GeoJSON object |
ST_GeomFromText(), ST_GeometryFromText() |
Return geometry from WKT |
ST_GeomFromWKB(), ST_GeometryFromWKB() |
Return geometry from WKB |
ST_InteriorRingN() |
Return N-th interior ring of Polygon |
ST_Intersection() |
Return point set intersection of two geometries |
ST_Intersects() |
Whether one geometry intersects another |
ST_IsClosed() |
Whether a geometry is closed and simple |
ST_IsEmpty() |
Placeholder function |
ST_IsSimple() |
Whether a geometry is simple |
ST_IsValid() |
Whether a geometry is valid |
ST_LatFromGeoHash() |
Return latitude from geohash value |
ST_Length() |
Return length of LineString |
ST_LineFromText(), ST_LineStringFromText() |
Construct LineString from WKT |
ST_LineFromWKB(), ST_LineStringFromWKB() |
Construct LineString from WKB |
ST_LongFromGeoHash() |
Return longitude from geohash value |
ST_MakeEnvelope() |
Rectangle around two points |
ST_MLineFromText(), ST_MultiLineStringFromText() |
Construct MultiLineString from WKT |
ST_MLineFromWKB(), ST_MultiLineStringFromWKB() |
Construct MultiLineString from WKB |
ST_MPointFromText(), ST_MultiPointFromText() |
Construct MultiPoint from WKT |
ST_MPointFromWKB(), ST_MultiPointFromWKB() |
Construct MultiPoint from WKB |
ST_MPolyFromText(), ST_MultiPolygonFromText() |
Construct MultiPolygon from WKT |
ST_MPolyFromWKB(), ST_MultiPolygonFromWKB() |
Construct MultiPolygon from WKB |
ST_NumGeometries() |
Return number of geometries in geometry collection |
ST_NumInteriorRing(), ST_NumInteriorRings() |
Return number of interior rings in Polygon |
ST_NumPoints() |
Return number of points in LineString |
ST_Overlaps() |
Whether one geometry overlaps another |
ST_PointFromGeoHash() |
Convert geohash value to POINT value |
ST_PointFromText() |
Construct Point from WKT |
ST_PointFromWKB() |
Construct Point from WKB |
ST_PointN() |
Return N-th point from LineString |
ST_PolyFromText(), ST_PolygonFromText() |
Construct Polygon from WKT |
ST_PolyFromWKB(), ST_PolygonFromWKB() |
Construct Polygon from WKB |
ST_Simplify() |
Return simplified geometry |
ST_SRID() |
Return spatial reference system ID for geometry |
ST_StartPoint() |
Start Point of LineString |
ST_SymDifference() |
Return point set symmetric difference of two geometries |
ST_Touches() |
Whether one geometry touches another |
ST_Union() |
Return point set union of two geometries |
ST_Validate() |
Return validated geometry |
ST_Within() |
Whether one geometry is within another |
ST_X() |
Return X coordinate of Point |
ST_Y() |
Return Y coordinate of Point |
StartPoint() (deprecated 5.7.6) |
Start Point of LineString |
STD() |
Return the population standard deviation |
STDDEV() |
Return the population standard deviation |
STDDEV_POP() |
Return the population standard deviation |
STDDEV_SAMP() |
Return the sample standard deviation |
STR_TO_DATE() |
Convert a string to a date |
STRCMP() |
Compare two strings |
SUBDATE() |
Synonym for DATE_SUB() when invoked with three arguments |
SUBSTR() |
Return the substring as specified |
SUBSTRING() |
Return the substring as specified |
SUBSTRING_INDEX() |
Return a substring from a string before the specified number of occurrences of the delimiter |
SUBTIME() |
Subtract times |
SUM() |
Return the sum |
SYSDATE() |
Return the time at which the function executes |
SYSTEM_USER() |
Synonym for USER() |
TAN() |
Return the tangent of the argument |
TIME() |
Extract the time portion of the expression passed |
TIME_FORMAT() |
Format as time |
TIME_TO_SEC() |
Return the argument converted to seconds |
TIMEDIFF() |
Subtract time |
* |
Multiplication operator |
TIMESTAMP() |
With a single argument, this function returns the date or datetime expression; with two arguments, the sum of the arguments |
TIMESTAMPADD() |
Add an interval to a datetime expression |
TIMESTAMPDIFF() |
Subtract an interval from a datetime expression |
TO_BASE64() |
Return the argument converted to a base-64 string |
TO_DAYS() |
Return the date argument converted to days |
TO_SECONDS() |
Return the date or datetime argument converted to seconds since Year 0 |
Touches() (deprecated 5.7.6) |
Whether one geometry touches another |
TRIM() |
Remove leading and trailing spaces |
TRUNCATE() |
Truncate to specified number of decimal places |
UCASE() |
Synonym for UPPER() |
- |
Change the sign of the argument |
UNCOMPRESS() |
Uncompress a string compressed |
UNCOMPRESSED_LENGTH() |
Return the length of a string before compression |
UNHEX() |
Return a string containing hex representation of a number |
UNIX_TIMESTAMP() |
Return a UNIX timestamp |
UpdateXML() |
Return replaced XML fragment |
UPPER() |
Convert to uppercase |
USER() |
The user name and host name provided by the client |
UTC_DATE() |
Return the current UTC date |
UTC_TIME() |
Return the current UTC time |
UTC_TIMESTAMP() |
Return the current UTC date and time |
UUID() |
Return a Universal Unique Identifier (UUID) |
UUID_SHORT() |
Return an integer-valued universal identifier |
VALIDATE_PASSWORD_STRENGTH() |
Determine strength of password |
VALUES() |
Defines the values to be used during an INSERT |
VAR_POP() |
Return the population standard variance |
VAR_SAMP() |
Return the sample variance |
VARIANCE() |
Return the population standard variance |
VERSION() |
Return a string that indicates the MySQL server version |
WAIT_FOR_EXECUTED_GTID_SET() |
Wait until the given GTIDs have executed on slave. |
WAIT_UNTIL_SQL_THREAD_AFTER_GTIDS() |
Wait until the given GTIDs have executed on slave. |
WEEK() |
Return the week number |
WEEKDAY() |
Return the weekday index |
WEEKOFYEAR() |
Return the calendar week of the date (1-53) |
WEIGHT_STRING() |
Return the weight string for a string |
Within() (deprecated 5.7.6) |
Whether MBR of one geometry is within MBR of another |
X() (deprecated 5.7.6) |
Return X coordinate of Point |
XOR |
Logical XOR |
Y() (deprecated 5.7.6) |
Return Y coordinate of Point |
YEAR() |
Return the year |
YEARWEEK() |
Return the year and week |