I need to use about 8-10 variables that will only 'seldom' change in the
calculations of query fields.  Because the variables will be used in
multiple  expressions within the query, it would seem to be best to only
have to change them/it in just one location.  Should I use a ...

I have a query that lists dates when an oil well was either put into
production or taken off production.  There are several wells in the database
and the query retrieves all the wells.  The SQL for the query is as follows;
SELECT [Base Wells].[WELL NAME], [All Daily Production ...

How do I delete the contents of column?  I have a table where I need to empty
the contents of a column(field)  there are thousands of records.  There are
some records that have data in this field I need to make this field blank for
all the records in the table.  How do I this ...

Good afternoon,
I have a query set up where i want the results to show only Thursdays within
a Date Field.
I have no idea how to accomplish this. I went through the datepart and date