Using named parameters with stored procedures (ADO 2.7, Access ADP, SQL SVR 2000 and VBA)

I was under the impression that utilizing named parameters I could only specify the parameters needed and execute with those leaving others blank.

I have a large Access form that I need to be able to save as incomplete and come back to it later to finish. I have update and insert stored procedures defined to do this and I am using code to create and append parameters to the appropriate stored procedure as necessary. However, I am getting an error that the stored procedure expects a parameter that was not supplied.

I am thinking that I need default values but am not sure how to use the value already in the table or Null as default.
SEANWYATTAsked:
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SRigneyConnect With a Mentor Commented:
If security is not an issue you could just build the update stored procedure inline.
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SRigneyCommented:
You will still need to create all of the parameters, but if the stored procedure is set up to use defaults then you only have to set the ones that you are using.
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SEANWYATTAuthor Commented:
So If I set the defaults to Null in the stored procedure, I need to loop through all the controls on the form before executing the update to add the parameters and not just the fields that were changed on the current visit. That is going to be an interesting project... Is there a better way to handle this?
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LowfatspreadConnect With a Mentor Commented:
you could try constructing just 1 delimited input parameter to the stored procedure
and then let the stored procedure decode it...

e.g.

'1|22222|SMITH & JONES|'


i'd use | rather than a comma as its a better choice of a non allowed user input character...

hth  
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SEANWYATTAuthor Commented:
I guess the best way would be to build a parameter array by going through the controls and adding the control value or "" to the array.
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