MDX Function Reference

Flex.bi uses Mondrian OLAP reporting engine and MDX query language implementation. In addition to Mondrian provided MDX functions eazyBI defines additional MDX functions which can be used in calculated member formulas. Please start with Calculated measures and members (MDX) to learn how to create calculated members and MDX calculation formulas.

This page lists all supported MDX functions grouped by their category of return value, or you can select function by name from the alphabetical list in the table of contents (in the left navigation sidebar).

Detailed function description pages are still work in progress. Please contact flex.bi support and let us know which function detailed description and examples you would like to be added to this documentation.

Date Functions

DateAddDays	Returns the date plus the specified number of days.
DateAddWorkdays	Returns the date plus the specified number of workdays.
DateParse	Returns the date that is parsed from a string argument.
DateSerial	Returns the date for the specified year, month, and day.
DateWithoutTime	Returns the date without the time from the provided date or string argument.
getDate	Similar to get function but will always return the member property value as a datetime value.
NextStartDate	Returns the start date of the next time period.
Now	Returns the current date and time according your eazyBI server system date and time.
StartDate	Returns the time period start date.

Hierarchy Functions

CurrentHierarchy	Returns the current Time dimension hierarchy (default or Weekly) based on currently used hierarchy.
Hierarchy	Returns the hierarchy that contains a specified member or level.
Dimension	Returns the dimension that contains a specified member, level, or hierarchy.
Dimensions	Returns a hierarchy specified by a numeric or string expression.

Level Functions

Level	Returns the level of a member.
Levels	Returns the level whose position in a dimension or hierarchy is specified by a numeric expression or whose name is specified by a string expression.

Logical Functions

AnyDateInPeriod	Returns if any date from comma separated string is between time period start and end dates.
IsEmpty	Determines if an expression evaluates to the empty cell value.
DateAfterPeriodEnd	Returns if date is after time period end date.
DateBeforePeriodEnd	Returns if date is before time period end date.
DateBetween	Returns if date is between other two dates.
DateInPeriod	Returns if date is between time period start and end dates.
getBoolean	Similar to get function but will always return the member property value as a boolean `true` or `false` value.

Member Functions

Ancestor	Returns the ancestor of a member at a specified level or distance.
ClosingPeriod	Returns the last sibling among the descendants of a member at a specified level.
CurrentDateMember	Returns the Time dimension hierarchy level member which contains current date.
CurrentHierarchyMember	Returns current Time dimension hierarchy (default or Weekly) member based on currently used hierarchy.
CurrentMember	Returns the current member along a specified dimension or hierarchy during iteration.
CurrentUser	Returns a key value of the user (from all user dimensions, for example, Assignee, Logged By etc) which is currently using eazyBI
CurrentUserEmail	Returns an email of the user which is currently using eazyBI
CurrentUserName	Returns a name of the user which is currently using eazyBI
DataMember	Returns the system-generated data member that is associated with a nonleaf member of a dimension.
DateMembersBetween	Returns Time dimension level members between two dates.
DefaultMember	Returns the default member of a dimension or hierarchy.
FirstChild	Returns the first child of a member.
FirstSibling	Returns the first child of the parent of a member.
GetMemberByKey	Returns level member with specified key value.
Item	Returns a member from a specified tuple.
Lag	Returns the member that is a specified number of positions before a specified member along the member's dimension.
LastChild	Returns the last child of a specified member.
LastSibling	Returns the last child of the parent of a specified member.
Lead	Returns the member that is a specified number of positions following a specified member along the member's dimension.
Members	Returns a member specified by a string expression.
NextMember	Returns the next member in the level that contains a specified member.
OpeningPeriod	Returns the first sibling among the descendants of a specified level, optionally at a specified member.
ParallelPeriod	Returns a member from a prior period in the same relative position as a specified member.
Parent	Returns the parent of a member.
PrevMember	Returns the previous member in the level that contains a specified member.
PreviousPeriods	Returns a set of previous time dimension members for calculation of cumulative sums.
StrToMember	Returns the member specified by an MDX–formatted string.

Numeric Functions

Aggregate	Returns a calculated value using the appropriate aggregate function, based on the context of the query.
Avg	Returns the average value of a numeric expression evaluated.
CoalesceEmpty	Coalesces an empty cell value to a number or string and returns the coalesced value.
Correlation	Returns the correlation coefficient of two series evaluated over a set.
Count	Returns the number of tuples in a set.
Covariance	Returns the population covariance of two series evaluated over a set, using the biased population formula.
CovarianceN	Returns the sample covariance of two series evaluated over a set, using the unbiased population formula.
DateCompare	Returns -1 if first date is less than second date, 1 if first date is greater than second date, and 0 if dates are equal.
DateDiffDays	Returns difference in days from first date to second date.
DateDiffWorkdays	Returns difference in workdays from first date to second date.
DateDiffHours	Returns difference in hours from first date to second date.
DateDiffMinutes	Returns difference in minutes from first date to second date.
FirstQ	Returns the 1st quartile value of a numeric expression evaluated over a set.
getNumber	Similar to get function but will always return the member property value as a numeric value.
IIf	Returns one of two values determined by a logical test.
Len	Returns the number of characters in a string
LinRegIntercept	Calculates the linear regression of a set and returns the value of b in the regression line y = ax + b.
LinRegPoint	Calculates the linear regression of a set and returns the value of y in the regression line y = ax + b.
LinRegR2	Calculates the linear regression of a set and returns R2 (the coefficient of determination).
LinRegSlope	Calculates the linear regression of a set and returns the variance associated with the regression line y = ax + b.
Max	Returns the maximum value of a numeric expression evaluated over a set.
Median	Returns the median value of a numeric expression evaluated over a set.
Min	Returns the minimum value of a numeric expression evaluated over a set.
NonZero	Returns numeric value if non-zero.
Ordinal	Returns the zero-based ordinal value associated with a level.
Percentile	Returns the value of the tuple that is at a given percentile of a set.
Rank	Returns the one-based rank of a specified tuple in a specified set.
Stddev	Alias for Stdev.
StddevP	Alias for StdevP.
Stdev	Returns the sample standard deviation of a numeric expression evaluated over a set, using the unbiased population formula.
StdevP	Returns the population standard deviation of a numeric expression evaluated over a set, using the biased population formula.
Sum	Returns the sum of a numeric expression evaluated over a set.
ThirdQ	Returns the 3rd quartile value of a numeric expression evaluated over a set.
Val	Returns the numbers contained in a string as a numeric value of appropriate type.
Value	Returns the value of a measure.
Var	Returns the sample variance of a numeric expression evaluated over a set, using the unbiased population formula.
VarP	Returns the population variance of a numeric expression evaluated over a set, using the biased population formula.
Variance	Alias for Var.
VarianceP	Alias for VarP.

Set Functions

AddCalculatedMembers	Returns a set generated by adding calculated members to a specified set.
AllMembers	Returns a set that contains all members, including calculated members, of the specified dimension, hierarchy, or level.
Ascendants	Returns the set of the ascendants of a specified member, including the member itself.
BottomCount	Returns a specified number of items from the bottom of a set, optionally ordering the set first.
BottomPercent	Sorts a set and returns the bottom N elements whose cumulative total is at least a specified percentage.
BottomSum	Sorts a set and returns the bottom N elements whose cumulative total is at least a specified value.
Cache	Caches the result of the calculation in memory for query in execution. Can be useful when same calculation is repeated during the report more than once.
CascadingChildrenSet	Returns cascading children set of aggregate calculated member (set argument of Aggregate function). If any children member is also an aggregated calculated member then it is expanded to detailed members as well.
Children	Returns the children of a specified member.
ChildrenSet	Returns children set of aggregate calculated member (set argument of Aggregate function).
Crossjoin	Returns the cross product of two sets.
Descendants	Returns the set of descendants of a member at a specified level, optionally including or excluding descendants in other levels.
Distinct	Returns a set, removing duplicate tuples from a specified set.
DrilldownLevel	Drills down the members of a set, at a specified level, to one level below. Alternatively, drills down on a specified dimension in the set.
DrilldownLevelBottom	Drills down the bottommost members of a set, at a specified level, to one level below.
DrilldownLevelTop	Drills down the topmost members of a set, at a specified level, to one level below.
DrilldownMember	Drills down the members in a set that are present in a second specified set.
Except	Finds the difference between two sets, optionally retaining duplicates.
Exists	Returns the the set of tuples of the first set that exist with one or more tuples of the second set.
Extract	Returns a set of tuples from extracted dimension elements. The opposite of Crossjoin.
Filter	Returns the set resulting from filtering a set based on a search condition.
Generate	Applies a set to each member of another set, and then joins the resulting sets by union. Alternatively, this function returns a concatenated string created by evaluating a string expression over a set.
Head	Returns the first specified number of elements in a set.
Hierarchize	Orders the members of a set in a hierarchy.
Intersect	Returns the intersection of two input sets, optionally retaining duplicates.
LastPeriods	Returns a set of members prior to and including a specified member.
Members	Returns the set of members in a dimension, level, or hierarchy.
Mtd	Returns a set of sibling members from the same level as a given member, starting with the first sibling and ending with the given member, as constrained by the Year level in the Time dimension. A shortcut function for the PeriodsToDate function that specifies the level to be Month.
NonEmptyCrossJoin	Returns the cross product of two sets, excluding empty tuples and tuples without associated fact table data.
Order	Arranges members of a set, optionally preserving or breaking the hierarchy.
PeriodsToDate	Returns a set of periods (members) from a specified level starting with the first period and ending with a specified member.
Qtd	Returns a set of sibling members from the same level as a given member, starting with the first sibling and ending with the given member, as constrained by the Quarter level in the Time dimension. A shortcut function for the PeriodsToDate function that specifies the level to be Quarter.
Siblings	Returns the siblings of a specified member, including the member itself.
StrToSet	Returns the set specified by an MDX–formatted string.
StripCalculatedMembers	Returns a set generated by removing calculated members from a specified set.
Subset	Returns a subset of tuples from a specified set.
Tail	Returns a subset from the end of a set.
ToggleDrillState	Toggles the drill state of members.
TopCount	Returns a specified number of items from the top of a set, optionally ordering the set first.
TopPercent	Sorts a set and returns the top N elements whose cumulative total is at least a specified percentage.
TopSum	Sorts a set and returns the top N elements whose cumulative total is at least a specified value.
Union	Returns the union of two sets, optionally retaining duplicates.
Unorder	Removes any enforced ordering from a specified set.
VisibleRowsSet	Returns the set of all members which are visible on rows where each member is representing one row.
VisualTotals	Dynamically totals child members specified in a set using a pattern for the total label in the result set.
Wtd	Returns a set of sibling members from the same level as a given member, starting with the first sibling and ending with the given member, as constrained by the Week level in the Time dimension. A shortcut function for the PeriodsToDate function that specifies the level to be Week.
Ytd	Returns a set of sibling members from the same level as a given member, starting with the first sibling and ending with the given member, as constrained by the Year level in the Time dimension. A shortcut function for the PeriodsToDate function that specifies the level to be Year.

String Functions

AllProperties	Returns all property names and values for a member.
CoalesceEmpty	Coalesces an empty cell value to a number or string and returns the coalesced value.
ExtractString	Extracts string fragment using regular expression.
Format	Formats a number or date to a string.
Generate	Applies a set to each member of another set, and then joins the resulting sets by union. Alternatively, this function returns a concatenated string created by evaluating a string expression over a set.
get	Returns the member property value or empty result if the property does not exist.
getProperty	Alias for get.
getString	Similar to get function but will always return the member property value as a string value.
getMemberByKey	Returns level member name with specified key value.
IIF	Returns one of two values determined by a logical test.
LCase	Returns a string that has been converted to lowercase.
LTrim	Returns a string containing a copy of a specified string without leading spaces.
Left	Returns a specified number of characters from the left side of a string.
Mid	Returns a specified number of characters from a string.
Name	Returns the name of a dimension, hierarchy, level, or member.
NonEmptyString	Returns the string if it is not empty (contains at least one character), otherwise returns an empty result.
Properties	Returns a string (or number or date type) that contains a member property value. It is recommended to use eazyBI specific get function instead.
RTrim	Returns a string containing a copy of a specified string without trailing spaces.
Replace	Returns a string in which a specified substring has been replaced with another substring a specified number of times.
Right	Returns a string containing a specified number of characters from the right side of a string.
SetToStr	Returns an MDX-formatted string of that corresponds to a specified set.
Str	Returns a string representation of a number.
Titleize	Returns titleized string.
Trim	Returns a string containing a copy of a specified string without leading and trailing spaces.
TupleToStr	Returns an MDX–formatted string that corresponds to specified tuple.
UCase	Returns a string that has been converted to uppercase.
UniqueName	Returns the unique name of a specified dimension, hierarchy, level, or member.
\|\|	Concatenates two strings

Tuple Functions

Current	Returns the current tuple from a set during iteration.
DefaultContext	Returns current tuple result assuming Default level for all other dimensions that are not specified in tuple.
Item	Returns a tuple from a set.
StrToTuple	Returns the tuple specified by an MDX–formatted string.