The next example is how to do a ROW_NUMBER(), my favourite window function.

T-SQL SELECT *, ROW_NUMBER() OVER(ORDER BY dateTime) as RowNumber FROM chicago.safety_data Spark SQL SELECT *, ROW_NUMBER() OVER(ORDER BY dateTime) as RowNumber FROM chicago.safety_data DataFrame API (C#) var dataFrame = spark.Read().Table("chicago.safety_data"); var window = Microsoft.Spark.Sql.Expressions.Window.OrderBy("dateTime"); dataFrame = dataFrame.WithColumn("RowNumber", Functions.RowNumber().Over(window)); dataFrame.Show(); To see this in action, please feel free to deploy this repo to your Synapse Analytics repo: https://github.com/GoEddie/SynapseSparkExamples