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How to log PostgreSQL queries?
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In your data/postgresql.conf file, change the log_statement setting to 'all'.
Edit
Looking at your new information, I'd say there may be a few other settings to verify:
make sure you have turned on the log_destination variable
make sure you turn on the logging_collector
also mak...
encryption/decryption with multiple keys
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How to format a float in javascript?
In JavaScript, when converting from a float to a string, how can I get just 2 digits after the decimal point? For example, 0.34 instead of 0.3445434.
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记一次MongoDB性能问题 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
...nning on a NUMA machine. We suggest launching mongod like this to avoid performance problems: numactl –interleave=all mongod [other options]
当时我并不太清楚NUMA是什么东西，所以没有处理，只是把问题反馈给了运维人员，后来知道运维人员也没有理会这...
C# Interfaces. Implicit implementation versus Explicit implementation
...h IEnumerator<T>.Current, IEnumerable<T>.GetEnumerator(), and ISet<T>.Add(T). This is mentioned in another answer.
– phoog
May 20 at 22:13
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What should main() return in C and C++?
...nvironment. All objects with static storage duration shall be initialized (set to their initial values) before program startup. The manner and timing of such initialization are otherwise unspecified. Program termination returns control to the execution environment.
5.1.2.1 Freestanding environm...
SQlite Getting nearest locations (with latitude and longitude)
... - This is just a cut down version of pythagoras famous theorem. Given two sets of coordinates, the difference between the two X values represents one side of a right angled triangle and the difference between the Y values is the other. To get the hypotenuse (and therefore the distance between the p...
Get Substring - everything before certain char
I'm trying to figure out the best way to get everything before the - character in a string. Some example strings are below. The length of the string before - varies and can be any length
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What is the difference between “AS” and “IS” in an Oracle stored procedure?
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What's a standard way to do a no-op in python?
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