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What are the uses for Cross Join?
A cross join performs a cartesian product on the tuples of the two sets.
9 Answers
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Adding 'serial' to existing column in Postgres
I have a small table (~30 rows) in my Postgres 9.0 database with an integer ID field (the primary key) which currently contains unique sequential integers starting at 1, but which was not created using the 'serial' keyword.
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Is there a “standard” format for command line/shell help text?
If not, is there a de facto standard? Basically I'm writing a command line help text like so:
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lexers vs parsers
Are lexers and parsers really that different in theory?
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Convert int to char in java
Below is a code snippet,
15 Answers
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Hidden features of Scala
What are the hidden features of Scala that every Scala developer should be aware of?
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How can I build a small operating system on an old desktop computer? [closed]
This might be in vain, as I know writing an operating system is unbearably complicated (especially by oneself).
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How does StartCoroutine / yield return pattern really work in Unity?
I understand the principle of coroutines. I know how to get the standard StartCoroutine / yield return pattern to work in C# in Unity, e.g. invoke a method returning IEnumerator via StartCoroutine and in that method do something, do yield return new WaitForSeconds(1); to wait a second, th...
What does the “yield” keyword do?
What is the use of the yield keyword in Python, and what does it do?
42 Answers
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How to store a list in a column of a database table
So, per Mehrdad's answer to a related question , I get it that a "proper" database table column doesn't store a list. Rather, you should create another table that effectively holds the elements of said list and then link to it directly or through a junction table. However, the type of list I wa...