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What is the PostgreSQL equivalent for ISNULL()
In MS SQL-Server, I can do:
5 Answers
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SQL: IF clause within WHERE clause
Is it possible to use an IF clause within a WHERE clause in MS SQL?
14 Answers
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How to get a substring of text?
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If you have your text in your_text variable, you can use:
your_text[0..29]
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How to add a line break in C# .NET documentation
...use a <para /> tag to produce a paragraph break or you can wrap text in <para></para> tags as a way to group the text and add the blank line after it, but there is no equivalent to <br /> or anything like that. (Which according to this old MS forum post is by design.) You ca...
How to view the list of compile errors in IntelliJ?
I am looking for a way to view all compile errors in IntelliJ, similar to how they are displayed in Eclipse. I tried searching here and Google but have not really found a solution. I really like IntelliJ, I recently converted to it from Eclipse, and I hope this is just something I am missing and n...
Sorting related items in a Django template
Is it possible to sort a set of related items in a DJango template?
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What is the difference between Directory.EnumerateFiles vs Directory.GetFiles?
...hods differ as follows: When you use EnumerateFiles, you can start enumerating the collection of names before the whole collection is returned; when you use GetFiles, you must wait for the whole array of names to be returned before you can access the array. Therefore, when you are working with many ...
R apply function with multiple parameters
I have a function f(var1, var2) in R. Suppose we set var2 = 1 and now I want to apply the function f() to the list L . Basically I want to get a new list L* with the outputs
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The performance impact of using instanceof in Java
I am working on an application and one design approach involves extremely heavy use of the instanceof operator. While I know that OO design generally tries to avoid using instanceof , that is a different story and this question is purely related to performance. I was wondering if there is any per...
Specify custom Date format for colClasses argument in read.table/read.csv
Is there a way to specify the Date format when using the colClasses argument in read.table/read.csv?
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