MYSQL Built-Ins

Created by leonstefanski

>
Greater than operator

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TermDefinition
>
Greater than operator
>>
Right shift
>=
Greater than or equal operator
<
Less than operator
<>, !=
Not equal operator
<<
Left shift
<=
Less than or equal operator
<=>
NULL-safe equal to operator
%, MOD
Modulo operator
*
Multiplication operator
+
Addition operator
-
Minus operator
-
Change the sign of the argument
/
Division operator
:=
Assign a value
=
Assign a value (as part of a SET statement, or as part of the SET clause in an UPDATE statement)
=
Equal operator
ABS()
Return the absolute value
ADDDATE()
Add time values (intervals) to a date value
ADDTIME()
Add time
AND, &&
Logical AND
ANY_VALUE()
Suppress ONLY_FULL_GROUP_BY value rejection
ASCII()
Return numeric value of left-most character
AVG()
Return the average value of the argument
BETWEEN ... AND ...
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
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
CHAR()
Return the character for each integer passed
CHAR_LENGTH(), CHARACTER_LENGTH()
Return number of characters in argument
CHARSET()
Return the character set of the argument
COMPRESS()
Return result as a binary string
CONCAT()
Return concatenated string
CONV()
Convert numbers between different number bases
CONVERT()
Cast a value as a certain type
COUNT()
Return a count of the number of rows returned
COUNT(DISTINCT)
Return the count of a number of different values
CUME_DIST()
Cumulative distribution value
CURDATE(), CURRENT_DATE(), CURRENT_DATE
Return the current date
CURTIME(), CURRENT_TIME(), CURRENT_TIME
Return the current time
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
DAYNAME()
Return the name of the weekday
DAYOFMONTH(), DAY()
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)
DEFAULT()
Return the default value for a table column
DIV
Integer division
ELT()
Return string at index number
EXISTS()
Whether the result of a query contains any rows
EXP()
Raise to the power of
EXTRACT()
Extract part of a date
FIELD()
Index (position) of first argument in subsequent arguments
FIND_IN_SET()
Index (position) of first argument within second argument
FIRST_VALUE()
Value of argument from first row of window frame
FLOOR()
Return the largest integer value not greater than the argument
FORMAT()
Return a number formatted to specified number of decimal places
FORMAT_BYTES()
Convert byte count to value with units
FORMAT_PICO_TIME()
Convert time in picoseconds to value with units
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 base64 encoded string and return result
FROM_DAYS()
Convert a day number to a date
FROM_UNIXTIME()
Format Unix timestamp as a date
GET_FORMAT()
Return a date format string
GREATEST()
Return the largest argument
GROUP_CONCAT()
Return a concatenated string
HEX()
Hexadecimal representation of decimal or string value
HOUR()
Extract the hour
IF()
If/else construct
IFNULL()
Null if/else construct
IN()
Whether a value is within a set of values
INSERT()
Insert substring at specified position up to specified number of characters
INSTR()
Return the index of the first occurrence of substring
INTERVAL()
Return the index of the argument that is less than the first argument
IS
Test a value against a boolean
IS NOT
Test a value against a boolean
IS NOT NULL
NOT NULL value test
IS NULL
NULL value test
ISNULL()
Test whether the argument is NULL
LAST_DAY
Return the last day of the month for the argument
LAST_VALUE()
Value of argument from last row of window frame
LEAD()
Value of argument from row leading current row within partition
LEAST()
Return the smallest argument
LEFT()
Return the leftmost number of characters as specified
LENGTH()
Return the length of a string in bytes
LIKE
Simple pattern matching
LN()
Return the natural logarithm of the argument
LOCATE(), POSITION()
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(), LCASE()
Return the argument in lowercase
LPAD()
Return the string argument, left-padded with the specified string
LTRIM()
Remove leading spaces
MAKEDATE()
Create a date from the year and day of year
MAKETIME()
Create time from hour, minute, second
MATCH()
Perform full-text search
MAX()
Return the maximum value
MICROSECOND()
Return the microseconds from argument
MID()
Return a substring starting from the specified position
MIN()
Return the minimum value
MINUTE()
Return the minute from the argument
MOD()
Return the remainder
MONTH()
Return the month from the date passed
MONTHNAME()
Return the name of the month
NOT, !
Negates value
NOT BETWEEN ... AND ...
Whether a value is not within a range of values
NOT EXISTS()
Whether the result of a query contains no rows
NOT IN()
Whether a value is not within a set of values
NOT LIKE
Negation of simple pattern matching
NOT REGEXP
Negation of REGEXP
NOW(), CURRENT_TIMESTAMP(), LOCALTIME()
Return the current date and time
NULLIF()
Return NULL if expr1 = expr2
OCT()
Return a string containing octal representation of a number
OR, ||
Logical OR
PERIOD_ADD()
Add a period to a year-month
PERIOD_DIFF()
Return the number of months between periods
PI()
Return the value of pi
POW()
Return the argument raised to the specified power
POWER()
Return the argument raised to the specified power
QUARTER()
Return the quarter from a date argument
RAND()
Return a random floating-point value
REGEXP
Whether string matches regular expression
REGEXP_INSTR()
Starting index of substring matching regular expression
REGEXP_LIKE()
Whether string matches regular expression
REGEXP_REPLACE()
Replace substrings matching regular expression
REGEXP_SUBSTR()
Return substring matching regular expression
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
RLIKE
Whether string matches regular expression
ROUND()
Round the argument
ROW_COUNT()
The number of rows updated
ROW_NUMBER()
Number of current row within its partition
RPAD()
Append string the specified number of times
RTRIM()
Remove trailing spaces
SEC_TO_TIME()
Converts seconds to 'hh:mm:ss' format
SECOND()
Return the second (0-59)
SPACE()
Return a string of the specified number of spaces
SQRT()
Return the square root of the argument
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
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
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()
Return the difference of two datetime expressions, using the units specified
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
TRIM()
Remove leading and trailing spaces
TRUNCATE()
Truncate to specified number of decimal places
UPPER(), UCASE()
Convert to uppercase
UTC_DATE()
Return the current UTC date
UTC_TIME()
Return the current UTC time
UTC_TIMESTAMP()
Return the current UTC date and time
VALUES()
Define 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
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
XOR
Logical XOR
YEAR()
Return the year
YEARWEEK()
Return the year and week