How can I create a cluster on the fly?

I insert rows in a table from database as part of an effort to logging for our program.  The table in question has a lot of columns, many of which can be NULL at any given time.  As such, I would decide at run time (as situations warrant) columns that get a value when I add the new line.  The columns are of types of mixed data... strings, floats, some ints, etc.

For example...

  • On one pass, I want to fill the columns 'temp', 'volume' and 'weight '.
  • On another pass, I can want to fill columns 'temp', 'color' and 'notes '.

I have gen table of column names.  This part is easy

How (in the world) to create the cluster which feeds the entry "DB tools insert data" VI?

Sometimes, maybe I need an int, a float, and a Boolean value.

Other times I might have need of two integers (ints) and a string.

Thank you!

Gazpacho99 wrote:

How (in the world) to create the cluster which feeds the entry "DB tools insert data" VI?

What I did before, is to make a copy of "DB tools Insert Data.vi" and change internally in order to accept an array of variant instead of a cluster.  Then I can build programmatically to a picture of what I want insert, leaving the fields not used as Null.  A few years ago when I did, but I think it was pretty easy to do.

-James

Tags: NI Software

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