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Grouped LIMIT in PostgreSQL: show the first N rows for each group?
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RESTful call in Java
...xternal libraries, you can use java.net.HttpURLConnection or javax.net.ssl.HttpsURLConnection (for SSL), but that is call encapsulated in a Factory type pattern in java.net.URLConnection.
To receive the result, you will have to connection.getInputStream() which returns you an InputStream. You will t...
Show an image preview before upload
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Can you resolve an angularjs promise before you return it?
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Efficiently updating database using SQLAlchemy ORM
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Convert XML to JSON (and back) using Javascript
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https://github.com/abdmob/x2js - my own library (updated URL from http://code.google.com/p/x2js/):
This library provides XML to JSON (JavaScript Objects) and vice versa javascript conversion functions. The library is very sm...
Do declared properties require a corresponding instance variable?
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Is there a concurrent List in Java's JDK?
....edu/dl/classes/EDU/oswego/cs/dl/util/concurrent/CopyOnWriteArrayList.html
https://docs.oracle.com/javase/9/docs/api/java/util/concurrent/CopyOnWriteArrayList.html
https://www.logicbig.com/tutorials/core-java-tutorial/java-collections/concurrent-collection-cheatsheet.html
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Groovy: what's the purpose of “def” in “def x = 0”?
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Using an RDBMS as event sourcing storage
...just show you examples of an event-sourcing ledger I build to illustrate.
https://github.com/andrewkkchan/client-ledger-service
The above is an event sourcing ledger web service.
https://github.com/andrewkkchan/client-ledger-core-db
And the above I use RDBMS to compute states so you can enjoy all t...