Null Statements in SQL Engine

Hi All,

When you set the 'Enforce SQL Execution' in the Graphical View..SQL Engine is used for calculations

I'm having some issues with Null Values

Something like this won't work if any of the values are NULL in SQL Engine

“INT_COL_1” + “INT_COL_2”

So we have to replace the above statement with sqladd("INT_COL_1", "INT_COL_2") right ?

Does anyone have a reference document where i can find this statements

Thanks in advance