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“INSERT IGNORE” vs “INSERT … ON DUPLICATE KEY UPDATE”
While executing an INSERT statement with many rows, I want to skip duplicate entries that would otherwise cause failure. After some research, my options appear to be the use of either:
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MySQL Workbench: How to keep the connection alive
Error Code: 2013. Lost connection to MySQL server during query
9 Answers
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What is tail recursion?
Whilst starting to learn lisp, I've come across the term tail-recursive . What does it mean exactly?
28 Answers
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Are there benefits of passing by pointer over passing by reference in C++?
What are the benefits of passing by pointer over passing by reference in C++?
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Why doesn't print work in a lambda?
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A lambda's body has to be a single expression. In Python 2.x, print is a statement. However, in Python 3, print is a function (and a function application is an expression, so it will work in a lambda). You can (and should, for forward compatibility :) use ...
How to exclude certain directories/files from git grep search
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It's not possible, but has been discussed recently. Proposed workaround in link:
You can put *.dll to .gitignore file then git grep --exclude-standard.
EDIT see onlynone's answer, since git 1.9.0 it's possible.
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Non-type template parameters
I understand that the non-type template parameter should be a constant integral expression. Can someone shed light why is it so ?
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Would you, at present date, use JBoss or Glassfish (or another) as Java EE server for a new project?
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I have used WebLogic, WebSphere, JBoss, GlassFish, Resin, Jetty, Tomcat, and a few others over the last 10+ years. So, if I were considering a new project, I would ask myself a few questions first. One thing that I would not question anymor...
Why does this C++ snippet compile (non-void function does not return a value) [duplicate]
I found this in one of my libraries this morning:
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