No errors, no custom function necessary. I have been using this for years now, and have never had a problem. You missed the last parenthesis.
Good reply Allen. Best practice of all, of course, is to prohibit nulls and specify default values in the database itself. Personally, I prefer NULLs to any kind of default value, it has a certain historical significance ie: you know there was never a value if the field is NULL, or you can tell when a column was created because the values are all NULL before a certain date Like them or not, you have to program for them no matter what.
Never thought of applying it to VB though. Well done guys! Unless you know the rules for this, you can get into trouble quite quickly with massive run time errors. We therefore have to take care that when an empty string is not allowed, that the program must test for this condition first etc. No Account? Sign up. By signing in, you agree to our Terms of Use and Privacy Policy. Already have an account?
Sign in. By signing up, you agree to our Terms of Use and Privacy Policy. Enter the email address associated with your account. While cstr function will convert the number to a string, the function will error out if the column has a null value cstr function does not work on null columns.
So, you have to use a expression that converts the empty null to some string. This type of join will run quite slow. I would perhaps ask the server guy if a view of the joined tables can be created for you. You would then link to that view and it would eliminate the need for the ctstr in those joins, and in fact you would not need to create the join either. I suggest this since your current setup will not perform well since those types of joins can't be optimized by access.
Was this reply helpful? Connect and share knowledge within a single location that is structured and easy to search. This used to work fine without the error, so I can't see why all of a sudden it's throwing the error. Something like the code below not tested should prevent the error occurring, but you'll need to check that the NULLs aren't causing unexpected behaviour elsewhere. Stack Overflow for Teams — Collaborate and share knowledge with a private group.
Create a free Team What is Teams? Collectives on Stack Overflow. Learn more. Stack Overflow for Teams — Collaborate and share knowledge with a private group. Create a free Team What is Teams? Collectives on Stack Overflow. Learn more. Asked 10 years, 9 months ago. Active 1 year ago. Viewed 37k times. Erik A HorusKol HorusKol 7, 10 10 gold badges 46 46 silver badges 88 88 bronze badges.
You have to specify the type for each variable: you can't define a comma-separated list of variables like you have in your code. Add a comment.
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