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Print number of keys in Redis
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202
You can issue the INFO command, which returns information and statistics about the server. See...
Using :before CSS pseudo element to add image to modal
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edited Apr 12 '16 at 21:38
pydsigner
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answered Ju...
Update or Insert (multiple rows and columns) from subquery in PostgreSQL
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For the UPDATE
Use:
UPDATE table1
SET col1 = othertable.col2,
col2 = othertable.col3
FROM othertable
WHERE othertable.col1 = 123;
For the INSERT
Use:
INSERT INTO table1 (col1, col2)
SELECT col1, col2
FROM othertable
You don't need the VALUES syntax if you are us...
Switching between GCC and Clang/LLVM using CMake
...EASE_INIT "-O3 -DNDEBUG")
SET (CMAKE_C_FLAGS_RELWITHDEBINFO_INIT "-O2 -g")
SET (CMAKE_CXX_FLAGS_INIT "-Wall")
SET (CMAKE_CXX_FLAGS_DEBUG_INIT "-g")
SET (CMAKE_CXX_FLAGS_MINSIZEREL_INIT "-Os -DNDEBUG")
SET (CMAKE_CXX_FLAGS_RELEASE_INIT "-O3 -DNDEBUG")
SET (C...
How to set bootstrap navbar active class with Angular JS?
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26 Answers
26
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How to efficiently count the number of keys/properties of an object in JavaScript?
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20 Answers
20
Active
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Is it expensive to use try-catch blocks even if an exception is never thrown?
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206
try has almost no expense at all. Instead of doing the work of setting up the try at runtime, ...
What is bootstrapping?
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325
"Bootstrapping" comes from the term "pulling yourself up by your own bootstraps." That much you...
How can I tell if I'm running in 64-bit JVM or 32-bit JVM (from within a program)?
How can I tell if the JVM in which my application runs is 32 bit or 64-bit? Specifically, what functions or properties I can used to detect this within the program?
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