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How do I do multiple CASE WHEN conditions using SQL Server 2008?
...needed to add a year and month variable
declare @yr int
declare @mth int
set @yr=(select case when month(getdate())=1 then YEAR(getdate())-1 else YEAR(getdate())end)
set @mth=(select case when month(getdate())=1 then month(getdate())+11 else month(getdate())end)
Now I just add the variable into ...
How to convert byte array to string [duplicate]
I created a byte array with two strings. How do I convert a byte array to string?
4 Answers
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Check Whether a User Exists
...so, if you turn this snippet into a function or script, I suggest you also set your exit code appropriately:
#!/bin/bash
user_exists(){ id "$1" &>/dev/null; } # silent, it just sets the exit code
if user_exists "$1"; code=$?; then # use the function, save the code
echo 'user found'
else
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How to create empty data frame with column names specified in R? [duplicate]
I need to create an empty data frame in R with specified column names. Any simplest way ?
2 Answers
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Bootstrap 3 Collapse show state with Chevron icon
Using the core example taken from the Bootstrap 3 Javascript examples page for Collapse ,
I have been able to show the state of collapse using chevron icons.
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HTML Form: Select-Option vs Datalist-Option
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The equivalent for an input plus datalist would be setting the value="(default option)" on the input itself. For an input with type="text", this text will appear by default but be editable.
– Bemisawa
Jul 18 '17 at 18:38
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C++: How to round a double to an int? [duplicate]
I have a double (call it x), meant to be 55 but in actuality stored as 54.999999999999943157 which I just realised.
5 Answe...
Java, Simplified check if int array contains int
...ses
List<T> list=Arrays.asList(...)
list.contains(...)
2.use HashSet for performance consideration if you use more than once.
Set <T>set =new HashSet<T>(Arrays.asList(...));
set.contains(...)
share
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psql: FATAL: database “” does not exist
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I needed to do this in Windows. Set the new pg username to the Linux un. Fixed.
– RichieRich
May 7 '18 at 11:19
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Determine which JAR file a class is from
...fileName = URLDecoder.decode(uri.substring("jar:file:".length(), idx), Charset.defaultCharset().name());
return new File(fileName).getAbsolutePath();
} catch (UnsupportedEncodingException e) {
throw new InternalError("default charset doesn't exist. Your VM is borked.");
}
}
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