You could do this
SQL SELECT *
FROM 'Company info' where isnull([payment received);
And also a question (when this happen to be not the answer): does your SQL query work _without_ that isnull filter?
#edit: Updated it (old situation I had not(isnull( paymentReceived)) while you were looking for only those records where that field is null.
I think this should be correct SQL syntax for access. It could be that the values are not NULL but an empty string in the sourcedatabase. Then use the len() function.
Hope it helps
The SELECT statement in SQL SELECT is handed over to the server for execution, so the null check must be in the correct syntax for your database server. If you are using SQL Server, then rani.batra's script should work (don't forget the SQL in front of th SELECT), although I would do away with the backquotes. If you are using another DBMS, then the syntax may vary.
Hehe, nice that you have a working solution.
However when there are a lot of records in your database where paymentReceived = NULL, then this is not the most optimal solution.
The SQL Select-part you currently use loads ALL records from that table from the database... and in the load .... Where part, you filter by isnull(paymentReceived)
I would prefer to have the Where-clause in the SQL select part for that reason.