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Oracle: how to UPSERT (update or insert into a table?)
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The issue is that you have a window in between the insert and the update where another process could successfully fire a delete. I did however use this pattern on a table that never has deletes fired against it.
– chotchki
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Distributed sequence number generation?
...ed, high-scale manner. You could look into things like network broadcasts, windowed ranges for each worker, and distributed hash tables for unique worker IDs, but it's a lot of work.
Unique IDs are another matter, there are several good ways of generating unique IDs in a decentralized manner:
a) Y...
Unable to find specific subclass of NSManagedObject
... concept of namespacing, but this made me want to throw my MacBook out the window (I have an app with an extension, and hit this problem when running the extension). There has to be a "right" way to do this with namespaces, I just can't figure it out.
– S'pht'Kr
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java.net.ConnectException: Connection refused
... not started your server.
Your server is not listening for connections.
On Windows servers, the listen backlog queue is full.
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What is the best way to paginate results in SQL Server
...d keyset pagination.
Total records before pagination
The COUNT(*) OVER() window function will help you count the number of total records "before pagination". If you're using SQL Server 2000, you will have to resort to two queries for the COUNT(*).
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No compiler is provided in this environment. Perhaps you are running on a JRE rather than a JDK?
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On your Eclipse IDE, go into Window > Preferences > Java > Installed JREs > and check your installed JREs. You should have an entry with a JDK there.
Select the Execution Env as show below. Click OK
Then Right-Click on your Project -> Ma...
Subversion stuck due to “previous operation has not finished”?
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I did run the Cleanup from Windows FileExplorer (with Turtoise) and it gave me a more elaborated error wich told me what was the file with the problem, somehow SVN lost that file, a darm *.cache file, so i took another .cache and rename it to replace t...
How can I expand the full path of the current file to pass to a command in Vim?
...pand(vimFiles . '/subDir')
This will give you a path with backslashes on Windows.
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Could not establish trust relationship for SSL/TLS secure channel — SOAP
I have a simple web service call, generated by a .NET (C#) 2.0 windows app, via the web service proxy generated by Visual Studio, for a web service also written in C# (2.0). This has worked for several years, and continues to do so at the dozen or so places where it is running.
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Build project into a JAR automatically in Eclipse
...build.xml file in the bin folder.
Check the Output
The Eclipse output window (named Console) should show the following after a build:
Buildfile: /home/<user>/src/Test/build.xml
CreateJar:
[jar] Building jar: /home/<user>/src/Test/Test.jar
BUILD SUCCESSFUL
Total time: 152 ...