6 Functions 🧮
SQL expressions can utilize a myriad of functions alongside field values and constants. Each function needs a set number of 'arguments' and yields one value.
6.1 Aggregate functions 📊
Refer to Section 10.3 for details.
6.2 Date functions 📆
YEARPART 📅
YEARPART(date)- Retrieves the year of the date.MONTHPART 📆
MONTHPART(date)- Determines the month of the date.DAYPART 🌞
DAYPART(date)- Extracts the day from the date.DATEPART 🗓
DATEPART(date)- Provides the date while removing minutes.TIMEPART ⌚
TIMEPART(date)- Gives the time in minutes from the date.YEARMONTHPART 📅📆
YEARMONTHPART(date)- Shows year and month as a string.MONTHYEARPART 📆📅
MONTHYEARPART(date)- Displays month and year in a string format.MONTHNAME 📆
MONTHNAME(date)- Returns the full month name.SHORTMONTHNAME 🗓
SHORTMONTHNAME(date)- Gives the abbreviated month name.DAYNAME 🌞
DAYNAME(date)- Fetches the full day name.SHORTDAYNAME 🌤
SHORTDAYNAME(date)- Offers the abbreviated day name.NOW 🕰
NOW()- Provides the current date and time.YEARSDIFF 📅⏳
YEARSDIFF(from,to)- Calculates the year difference between two dates.MONTHSDIFF 📆⏳
MONTHSDIFF(from,to)- Determines the month difference between two dates.DAYSDIFF 🌞⏳
DAYSDIFF(from,to)- Measures the day difference between two dates.
... and many more!
6.3 List variable functions 📝
Refer to the List Variables section for more details.
6.4 Trigonometric and logarithmic functions 📐📈
Covers functions related to angles and logs. Includes functions like ACOS, ASIN, ATAN, LOG, and more.
6.5 String manipulation 🎻
Delves into manipulating strings with functions like LEN, LEFT, RIGHT, MID, SUBST, etc.
6.6 Number conversion and formatting 🔢
Functions like FIXED help in formatting numbers.
6.7 Numerical functions 🔢🔍
Includes functions such as ABS, INT, FLOOR, CEIL and more for number operations.
6.7 Conditional expression 🔄
IIF and NVL functions that help in setting conditions in SQL expressions.
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