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Insert, on duplicate update in PostgreSQL?
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540
PostgreSQL since version 9.5 has UPSERT syntax, with ON CONFLICT clause. with the following syn...
How to define Gradle's home in IDEA?
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480
You can write a simple gradle script to print your GRADLE_HOME directory.
task getHomeDir {
...
How do I concatenate two strings in C?
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184
C does not have the support for strings that some other languages have. A string in C is just a ...
In java how to get substring from a string till a character c?
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edited May 28 '13 at 17:40
Anirudha
30.2k66 gold badges5858 silver badges7878 bronze badges
answered O...
Facebook Architecture [closed]
...sing the latest 5.3 and I'm willing to bet there's still a lot that is PHP 4 compatible. Otherwise, they couldn't use HipHop. HipHop IS A GOOD IDEA and needs to grow and expand, but in it's current state it's not really useful for that many people who are building NEW PHP apps.
There's also PHP to ...
Excel “External table is not in the expected format.”
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246
"External table is not in the expected format." typically occurs when trying to use an Excel 20...
Does Git warn me if a shorthand commit ID can refer to 2 different commits?
...g commits with duplicate prefixes like this:
git rev-list master | cut -c-4 | sort | uniq -c | sort -nr | head
This takes the list of revisions in master, cuts out the first 4 characters and throws away the rest, count the duplicates and sort numerically. In a my relatively small repository of ~1...
Captured variable in a loop in C#
...ing x in foo) // And again, despite how it reads out loud
See section 7.14.4.2 of the C# 3.0 spec for more details of this, and my article on closures has more examples too.
Note that as of the C# 5 compiler and beyond (even when specifying an earlier version of C#), the behavior of foreach chang...
Javascript array search and remove string?
...ust remove one?
– Ari
Oct 18 '19 at 4:58
1
@Ari I've updated the answer for removing only one ele...
How do I list the symbols in a .so file
... for demangling C++):
$ objdump -TC libz.so
libz.so: file format elf64-x86-64
DYNAMIC SYMBOL TABLE:
0000000000002010 l d .init 0000000000000000 .init
0000000000000000 DF *UND* 0000000000000000 GLIBC_2.2.5 free
0000000000000000 DF *UND* 0000000000000000 GLIBC_2....