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How do I find a “gap” in running counter with SQL?
I'd like to find the first "gap" in a counter column in an SQL table. For example, if there are values 1,2,4 and 5 I'd like to find out 3.
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Difference between == and ===
In swift there seem to be two equality operators: the double equals ( == ) and the triple equals ( === ), what is the difference between the two?
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Find a class somewhere inside dozens of JAR files?
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answered Aug 27 '09 at 18:32
Andreas DolkAndreas Dolk
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Python circular importing?
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I think the answer by jpmc26, while by no means wrong, comes down too heavily on circular imports. They can work just fine, if you set them up correctly.
The easiest way to do so is to use import my_module syntax, rather than from my_module im...
String literals and escape characters in postgresql
Attempting to insert an escape character into a table results in a warning.
5 Answers
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Setting table column width
I've got a simple table that is used for an inbox as follows:
13 Answers
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Compiling with g++ using multiple cores
Quick question: what is the compiler flag to allow g++ to spawn multiple instances of itself in order to compile large projects quicker (for example 4 source files at a time for a multi-core CPU)?
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Optimistic vs. Pessimistic locking
I understand the differences between optimistic and pessimistic locking. Now could someone explain to me when I would use either one in general?
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How do I create a URL shortener?
... input field and the service shortens the URL to " http://www.example.org/abcdef ".
30 Answers
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How to make a class JSON serializable
How to make a Python class serializable?
33 Answers
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