I have run into this problem a few times and have never come up with a good answer. I figure others must have dealt with this already.
When using integer columns is it better to have 0 or NULL to indicate no value. For example, if a table had a parent_id field and a particular entry had no parent, would you use 0 or NULL?
I\'ve written a couple of apps which work and seem bug free (ie, they don\'t crash...) but I get warnings for the code below (which I use a few times) -
I was looking at some code that uses Boost.Function and have a question 开发者_C百科about how code can be written to allow assignment to NULL.I tried to track down the corresponding Boost code, but wa
I know this may seem very basic but basically, I want to say in pattern matching match value with Null-> failwi开发者_开发问答th \"Empty\"
First, I\'ve been using CakePHP for a long time, and I\'m very comfortable with the API.I\'m pretty sure this is going to be a face-palm error, but I\'ll need some fresh eyes on this because I\'ve bee
I have problem with this code: For i = 18 To 19 + Cells(1, 9) If Cells(i,3) = Null Then MsgBox \"Nie sú zadané vš开发者_高级运维etky vstupné údaje pre príjem za prenájom, doplňte chýbajúce
Apparently PostgreSQL stores a couple of values in the hea开发者_高级运维der of each database row.
I have a database table with an int column 开发者_开发问答that can also be null. Adding an int to the column is fine, but setting it back to null causes an error. Since ColdFusion does not support nul
What does null mean in this script? Does it mean that the column can have null values or does it mean that the column\'s default value is nul?
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