Passing in NULL via SQL ACCEPT

From: Magaliff, Bill <Bill.Magaliff_at_lendware.com>
Date: Wed, 13 Mar 2002 06:43:24 -0800
Message-ID: <F001.00427125.20020313064324@fatcity.com>

I'm writing an anonymous PL/SQL block that accepts various input from SQL*Plus via ACCEPT commands. I then take the SQL input and use it in the block, usually by assigning it to a PL/SQL variable.

If no value is specified on the ACCEPT line, it appears that nothing is passed into PL/SQL, not even NULL. I tried using NVL(&&variable,0) to reassign the supposed NULL to a 0, but the program returns an error that nothing exists in place of &&variable.

Any ideas how to catch this null, which I want to be a viable option (e.g., if the &&varible is NULL then perform certain operations).

Thanks much
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Author: Magaliff, Bill
  INET: Bill.Magaliff_at_lendware.com

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