Oct 12, 2006 · To find or exclude null values, use Is Null and Not Is Null, respectively, in criteria expressions and SQL WHERE clauses. For instance, to find null values in a query, you’d enter...

Example data I want to exclude from a query. I have data in a column called Jason A. Smith. I want to exclude Jason A. Smith so it does not appear in my report. If I use Not Like "Jason Smith*" is.

Aug 24, 2017 · one of the fields in my query is calling a function which returns a string value or null values. I want to exclude records that has null value in that field. I do have alias name to that function for that field.

A query criterion is an expression that Access compares to query field values to determine whether to include the record that contains each value. For example, = "Chicago" is an expression that Access can compare to values in a text field in a query.

Dec 12, 2013 · I tried "NOT NULL", but that didn't work. Records with that field blank still display when the query is run. My comment about "blank string" is a result of trying to figure out how to eliminate records with a specific empty field.

Jun 16, 2015 · Your query is correct but probably you have zero length strings in your Contact column. You can use. select * from table where len(Nz(Contact, '')) > 0 The Nz function returns the specified default value if the column is null.

The first's a value (usually a query field) that may contain a null value. The second parameter's the value that you want to show in the query results if Access finds a null value. Here's an example that uses Nz( ) to convert null values in the Quantity field to 0:

Aug 30, 2016 · In SQL Server we can use IsNull() function to check whether expression value is null or not. For ex. Select IsNull(sum(amount),0) as TotalAmount From Payments

Aug 6, 2015 · Your query returns only those rows where the condition, [Field A] <> "Healthspan", is True. However, when [Field A] is Null, the condition is evaluated as Null, not True, so that row is excluded. Add a second condition with OR to include those rows with Null [Field A] values: SELECT y.* y.[Field A] <> "Healthspan" OR y.[Field A] Is Null;

Sep 16, 2020 · With a column of text data type a column position might appear to be empty, but still be NOT NULL. This is because it might contain a zero-length string. This can be prevented by setting a column's AllowZeroLength property ot False (No) in table design view.