Error Description:
Invalid number

Error Cause:
The attempted conversion of a character string to a number failed because the character string was not a valid numeric literal. Only numeric fields or character fields containing numeric data may be used in arithmetic functions or expressions. Only numeric fields may be added to or subtracted from dates..

Action:
Check the character strings in the function or expression. Verify that they contain only numbers, a sign, a decimal point, and the character "E" or "e", then retry the operation.

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Name: Email: URL: Chars left:  1000  (1000 max) (No HTML, but newlines will be preserved)

declare

    lv_mail_to_list varchar2(2000);

  BEGIN

     SELECT  key_desc

       INTO  lv_mail_to_list

       FROM table1

      WHERE  key_name = 86;