!=
or <>
) does not match null values unless you are specifically doing a comparison on a null value.
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To get round this we can listen for the return key being pressed and removing the focus on the input field using the blur
event.
TIMESTAMPDIFF
or TIMEDIFF
. Which you use depends how you want the resulting difference formatted.
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target=_blank
and target=blank
? It’s a question that seems to crop up every now and then. At first, they both appear to do the same thing, open a link in a new tab (or window). However, omitting that little underscore makes an important difference.
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