Re: Calculated column based on two values in single column in SAP HANA

Hi Gayathri,

the easiest way to implement this in SQL would be with the LAG() window function, no need for temp tables & self joins.

Window Functions - SAP HANA SQL and System Views Reference - SAP Library

It could be something like:

SELECT DATE, TIME, MEASURE, (MEASURE - LAG(MEASURE, 1) OVER (ORDER BY DATE, TIME)) AS MEASURE_DIF FROM TABLE;

Use coalesce over the calculated column if you'd like the null value to be 0.

And as mentioned, you can encapsulate this SQL code in a SQLScript calculation view.

Best,

Henrique.