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Unioning two tables with different number of columns
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For the null value, this hack worked for me: 'SomeString' as DummyColumn. Basically, you just replace NULL with some value. This also worked when used with groupby.
– Saurabh Jain
Feb 27 at 6:27
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What does immutable mean?
If a string is immutable, does that mean that....
(let's assume JavaScript)
9 Answers
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Unable to resolve host “” No address associated with hostname
.... or either generate the crash report ...........
– Vipin Sahu
Aug 23 '12 at 10:06
14
well i also...
EC2 Instance Cloning
... the ami for that ec2 but i want to also clone the security groups elastic ips and all the other configurations for that ec2 into other one then i want to stop that instance can you please let me know how can i do this
– usama
Jul 10 '17 at 18:35
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MySQL JOIN the most recent row only?
...private int id;
private CustomerData currentData;
public Customer(String title, String forename, String surname)
{
this.update(title, forename, surname);
}
public void update(String title, String forename, String surname)
{
this.currentData = new CustomerDat...
How do I capture the output into a variable from an external process in PowerShell?
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Have you tried:
$OutputVariable = (Shell command) | Out-String
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How to export a mysql database using Command Prompt?
... the following command,
For Export:
mysqldump -u [user] -p [db_name] | gzip > [filename_to_compress.sql.gz]
For Import:
gunzip < [compressed_filename.sql.gz] | mysql -u [user] -p[password] [databasename]
Note: There is no space between the keyword '-p' and your password.
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.NET XML serialization gotchas? [closed]
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When serializing into an XML string from a memory stream, be sure to use MemoryStream#ToArray() instead of MemoryStream#GetBuffer() or you will end up with junk characters that won't deserialize properly (because of the extra buffer allocated).
http://m...
Efficient way to determine number of digits in an integer
...cialization optimization for 8-bit numbers
template <>
int numDigits(char n)
{
// if you have the time, replace this with a static initialization to avoid
// the initial overhead & unnecessary branch
static char x[256] = {0};
if (x[0] == 0) {
for (char c = 1; c != 0...
how to implement regions/code collapse in javascript
...extSelection = DTE.ActiveDocument.Selection
Const REGION_START As String = "//#region"
Const REGION_END As String = "//#endregion"
selection.SelectAll()
Dim text As String = selection.Text
selection.StartOfDocument(True)
Dim startIndex As Integer
...