Table.IsDistinct

Indicates whether the table contains only distinct rows (no duplicates).

function (table as table, optional comparisonCriteria as nullable any) as logical

Description

Indicates whether the table contains only distinct rows (no duplicates). Returns true if the rows are distinct, false otherwise. An optional parameter, comparisonCriteria, specifies which columns of the table are tested for duplication. If comparisonCriteria is not specified, all columns are tested.

Category

Table.Membership

Examples

Determine if the table is distinct.

Table.IsDistinct(Table.FromRecords({ [CustomerID = 1, Name = "Bob", Phone = "123-4567"],  [CustomerID = 2, Name = "Jim", Phone = "987-6543"] ,  [CustomerID = 3, Name = "Paul", Phone = "543-7890"] , [CustomerID = 4, Name = "Ringo", Phone = "232-1550"]}))

true

Determine if the table is distinct in column.

Table.IsDistinct(Table.FromRecords({ [CustomerID = 1, Name = "Bob", Phone = "123-4567"],  [CustomerID = 2, Name = "Jim", Phone = "987-6543"] ,  [CustomerID = 3, Name = "Paul", Phone = "543-7890"] ,  [CustomerID = 5, Name = "Bob", Phone = "232-1550"]}), "Name")

false