Izenda Functions

List of Built-in Functions

Function	Description	Result Data Types	Examples
AVG `AVG(expression)` Numeric, Money	Returns the average of the values in a group. Null values are ignored.	Numeric, Money	`AVG([Retail].[dbo].[Orders].[Freight])`
COUNT `COUNT(expression)` Any data type except Image and Lob.	Returns the number of items in a group.	Numeric.	`COUNT([Retail].[dbo].[Orders].[OrderID])`
MAX `MAX(expression)` Any data type except Image and Lob.	Returns the maximum value in a group.	The same data type as expression.	`MAX([Retail].[dbo].[Orders].[Freight])`
MIN `MIN(expression)` Any data type except Image and Lob.	Returns the minimum value in a group.	The same data type as expression.	`MIN([Retail].[dbo].[Orders].[Freight])`
SUM `SUM(expression)` Numeric, Money.	Returns the sum of all the values in a group. Null values are ignored.	The same data type as expression.	`SUM([Retail].[dbo].[Orders].[Freight])`
LEN `LEN(expression)` Text.	Returns the number of characters of the given text expression, excluding trailing blanks.	Numeric.	`LEN([Retail].[dbo].[Orders].[ShipAddress])`
ROUND `ROUND(expression)` Numeric, Money.	Returns the expression rounded to the specified length or precision.	The same data type as expression.	`ROUND([Retail].[dbo].[Orders].[Freight],0)`
CONCAT `CONCAT(expression,expression[,...])` Text.	Returns the concatenation of all the parameters in that exact order.	Text.	`CONCAT('ab','cd',[SHIPCOUNTRY])`
GETDATE `GETDATE()` N/A.	Returns the current system date and time.	Datetime.	`GETDATE()`
DATEADD `DATEADD(datepart,number,date)` datepart: the part of the date. (See table List of Dateparts and Abbreviations) number: the value used to increment datepart. date: an expression that returns a datetime value.	Returns a new datetime value based on adding an interval to the specified date.	Datetime.	`DATEADD(day,3,[DueDate])`
DATEDIFF `DATEDIFF(datepart,startdate,enddate)` datepart: the part of the date. (See table List of Dateparts and Abbreviations) startdate, enddate: expressions that return datetime values.	Returns the number of date and time boundaries crossed between two specified dates.	Numeric.	`DATEDIFF(day,[OrderDate],[ShipDate])`
DATEPART `DATEPART(datepart,date)` datepart: the part of the date. (See table List of Dateparts and Abbreviations) date: an expression that returns a datetime value.	Returns a number representing the specified datepart of the specified date.	Numeric.	`DATEPART(DAY,[Retail].[dbo].[Orders].[OrderDate])`
CONVERT `CONVERT(data_type,expression)` data_type: any data type. expression: any expression.	Explicitly converts an expression of one data type to another, similar to `CAST..AS`.	The same data type as data_type.	`CONVERT(TEXT,[Retail].[dbo].[Orders].[OrderDate])`
CAST..AS `CAST(expressionASdata_type)` data_type: any data type. expression: any expression.	Explicitly converts an expression of one data type to another, similar to `CONVERT`.	The same data type as data_type.	`CAST([Retail].[dbo].[Orders].[OrderID]ASTEXT)`
ISNULL `ISNULL(check_expression,replacement_expression)` check_expression and replacement_expression: any data type.	Returns the value of check_expression if it is not NULL; otherwise, returns the value of replacement_expression.	The same data type as expression.	`ISNULL([Retail].[dbo].[Orders].[ShipRegion],'NoRegion')`
BETWEEN..AND `BETWEEN(expression,begin_expression,end_expression)` Any data type except Image and Lob.	Returns TRUE if the value of test_expression is greater than or equal to the value of begin_expression and less than or equal to the value of end_expression, otherwise returns FALSE.	Boolean.	`CASEWHEN(BETWEEN([Retail].[dbo].[Orders].[EmployeeID],1,3))THEN1000else[Retail].[dbo].[Orders].[EmployeeID]END`
AND `boolean_expressionANDboolean_expression` Boolean.	Returns TRUE when both expressions are TRUE, otherwise returns FALSE.	Boolean.	`CASEWHEN([Retail].[dbo].[Orders].[EmployeeID]=1AND[Retail].[dbo].[Orders].[CustomerID]='DELDG')THEN1000else[Retail].[dbo].[Orders].[EmployeeID]end`
OR `boolean_expressionANDboolean_expression` Boolean.	Returns TRUE when either expression is TRUE, otherwise returns FALSE.	Boolean.	`CASEWHEN([Retail].[dbo].[Orders].[EmployeeID]=1OR[Retail].[dbo].[Orders].[EmployeeID]=2)THEN1000else[Retail].[dbo].[Orders].[EmployeeID]end`
DISTINCT `DISTINCT(expression)` or `DISTINCTexpression` Any data type except Image and Lob.	Returns unique values.	The same data type as expression.	`COUNT(DISTINCT([Northwind].[dbo].[Orders].[ShipCity]))`
IFF `IFF(boolean_expression,true_expression[,false_expression])` boolean_expression: Boolean. true_expression, false_expression: any data type except Image and Lob.	Returns the value of true_expression when boolean_expression is TRUE, otherwise returns the value of false_expression.	The highest precedence data type from data types of true_expression and false_expression.	`IIF([Retail].[dbo].[Orders].[EmployeeID]=2,200,[Retail].[dbo].[Orders].[EmployeeID])`
IF..THEN..ELSE..END `IF(boolean_expression)THEN(true_expression)[ELSE(false_expression)]END` boolean_expression: Boolean. true_expression, false_expression: any data type except Image and Lob.	Returns the value of true_expression when boolean_expression is TRUE, otherwise returns the value of false_expression.	The highest precedence data type from data types of true_expression and false_expression.	`IF([northwind].[dbo].[Orders].[EmployeeID]<3)then'Less'else(IF(BETWEEN([northwind].[dbo].[Orders].[EmployeeID],3,6))then 'More'else'Most'END)END`
CASE WHEN..THEN..ELSE..END `CASEWHEN(when_expression)THEN(result_expression)[…n][ELSE(else_result_expression)]END` Any data type except Image and Lob.	Returns the value of result_expression matching the first when_expression with the value equal to input_expression, otherwise return the value of else_result_expression.	The highest precedence data type from data types of all `result_expression` s and else_result_expression.	`Casewhen([northwind].[dbo].[Orders].[EmployeeID]=1)then'less'when([northwind].[dbo].[Orders].[EmployeeID]=3)then'mid'when([northwind].[dbo].[Orders].[EmployeeID]=4) then'high'else'notevaluated'end`
CASE..WHEN..THEN..ELSE..END `CASE(input_expression)WHEN(when_expression)THEN(result_expression)[…n][ELSE(else_result_expression)]END` Any data type except Image and Lob.	Returns the value of result_expression matching the first when_expression with the value equal to input_expression, otherwise return the value of else_result_expression.	The highest precedence data type from data types of all `result_expression` s and else_result_expression.	`CASE'USA'WHEN [Retail].[dbo].[Orders].[ShipCountry]THEN1else[Retail].[dbo].[Orders].[OrderID]END`
**CASE WHEN…THEN…ELSE…END `CASEWHEN(when_expression)THEN(result_expression)[…n][ELSE(else_result_expression)]END` Any data type except Image and Lob.	Returns the value of result_expression matching the first when_expression with the value equal to input_expression, otherwise return the value of else_result_expression.	The highest precedence data type from data types of all `result_expression` s and else_result_expression.	`Casewhen([northwind].[dbo].[Orders].[EmployeeID]=1)then'less'when([northwind].[dbo].[Orders].[EmployeeID]=3)then'mid'when([northwind].[dbo].[Orders].[EmployeeID]=4) then'high'else'notevaluated'end`
RUNNINGSUM `RUNNINGSUM(expression)` Numeric, Money.	Returns the sum of all the values of expression from the first row up to the current row.	The same data type as expression.	`RUNNINGSUM([Retail].[dbo].[Orders].[Freight])`
RUNNINGAVG `RUNNINGAVG(expression)` Numeric, Money.	Returns the average of all the values of expression from the first row up to the current row.	The same data type as expression.	`RUNNINGAVG([Retail].[dbo].[Orders].[Freight])`
RUNNINGCOUNT `RUNNINGCOUNT(expression)` Any data type except Image and Lob.	Returns the number of unique values of expression from the first row up to the current row.	Numeric.	`RUNNINGCOUNT([Retail].[dbo].[Orders].[OrderID])`

List of Dateparts and Abbreviations

Datepart	Abbreviations
year	yy, yyyy
quarter	qq, q
month	mm, m
dayofyear	dy, y
day	dd, d
week	ww, wk
weekday	dw
hour	hh
minute	mi, n
second	ss, s
millisecond	ms

Izenda Functions

List of Built-in Functions

List of Dateparts and Abbreviations

Related articles