ABS()
ACOS()
ADDMILLISECOND()
ADDSECOND()
ADDMINUTE()
ADDDAY()
ADDWEEK()
ADDMONTH()
ADDYEAR()
ASCII_CHAR()
ASCII_VAL()
ASIN()
ATAN()
ATAN2()
AVG()
BIN_AND()
BIN_OR()
BIN_SHL()
BIN_SHR()
BIN_XOR()
BIT_LENGTH()
CASE
CAST()
CEIL()
CEILING()
CHAR_LENGTH()
CHAR_TO_UUID()
CHARACTER_LENGTH()
CHECK_POINT_LEN
COALESCE
COS()
COSH()
COT()
COUNT()
DAY
DAY OF WEEK
DIV()
DOW()
EXP()
EXTRACT()
First(N) выбирает из результата запроса N - первых строк
GEN_ID()
GEN_UUID()
HASH()
HOUR
IIF()
LEADING
LEFT()
LIST()
LOWER()
MAX()
MIN()
MINUTE
MOD()
MONTH
NULLIF
OCTET_LENGTH()
OVERLAY()
PI()
POSITION()
POWER()
RAND()
RDB$GET_CONTEXT()
RDB$SET_CONTEXT()
REPLACE()
REVERSE()
ROUND()
SECOND
SIGN()
SIN()
SINH()
SQRT()
SUBSTRING()
SUM()
TAN()
TANH()
TRAILING
TRIM()
TRUNC()
UPPER()
UUID_TO_CHAR()
WEEKDAY
WHEN
WHERE
WHILE
WITH LOCK
WITH RECURSIVE
YEAR
YEARDAY