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How can I remove duplicate rows?
... the unique columns, and SELECT the MIN (or MAX) RowId as the row to keep. Then, just delete everything that didn't have a row id:
DELETE FROM MyTable
LEFT OUTER JOIN (
SELECT MIN(RowId) as RowId, Col1, Col2, Col3
FROM MyTable
GROUP BY Col1, Col2, Col3
) as KeepRows ON
MyTable.RowId =...
Creating a BLOB from a Base64 string in JavaScript
...oop causing same issue. We couldn't find a proper resolution to this issue then we moved to directly downloading files using window.open. Can you provide some help here?
– Akshay Raut
Mar 29 '18 at 10:02
...
What does 'const static' mean in C and C++?
...in some code here on StackOverflow and I couldn't figure out what it does. Then I saw some confused answers on other forums. My best guess is that it's used in C to hide the constant foo from other modules. Is this correct? If so, why would anyone use it in a C++ context where you can just make it...
Use PPK file in Mac Terminal to connect to remote connection over SSH [closed]
... need to install the brew formula from HEAD so please brew uninstall first then use brew install putty --HEAD. This worked for me.
– Dokie
Aug 8 '14 at 9:41
...
I want to get the type of a variable at runtime
...List[Int] and List[String] is the same, List. If you need type parameters, then you must use a TypeTag instead. A TypeTag however, cannot be obtained from a value, nor can it be used on a pattern match, due to JVM's erasure.
Examples with TypeTag can get quite complex -- not even comparing two type...
Escaping ampersand in URL
... says that it is necessary to use that character for some other
purpose, then the character must be percent-encoded. Percent-encoding
a reserved character involves converting the character to its
corresponding byte value in ASCII and then representing that value as
a pair of hexadecimal digi...
What is the difference between JavaScript and ECMAScript?
... (the 4th edition was abandoned) with features such as strict mode. Since then, ECMAScript has gained a lot of momentum and is scheduled to release its 6th Edition in a few months from now with the biggest changes its had thus far.
You can use a list of features for ECMAScript 6 here http://kangax...
How do you hide the Address bar in Google Chrome for Chrome Apps?
... frame (no address bar or tab bar). Entering full screen is not the answer then.
– ADTC
Feb 3 '15 at 3:40
This shortcu...
How do I make a delay in Java?
...
If you want to pause then use java.util.concurrent.TimeUnit:
TimeUnit.SECONDS.sleep(1);
To sleep for one second or
TimeUnit.MINUTES.sleep(1);
To sleep for a minute.
As this is a loop, this presents an inherent problem - drift. Every time y...
Application auto build versioning
...main
import "fmt"
var xyz string
func main() {
fmt.Println(xyz)
}
Then:
$ go run -ldflags "-X main.xyz=abc" main.go
abc
In order to set main.minversion to the build date and time when building:
go build -ldflags "-X main.minversion=`date -u +.%Y%m%d.%H%M%S`" service.go
If you compile ...