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SQL query return data from multiple tables
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Part 1 - Joins and Unions
This answer covers:
Part 1
Joining two or more tables using an inner join (See the wikipedia entry for additional info)
How to use a union query
Left and Right Outer Joins (this stackOverflow answer is excelle...
Compare two dates with JavaScript
...uggest a way to compare the values of two dates greater than, less than, and not in the past using JavaScript? The values will be coming from text boxes.
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Why does i = i + i give me 0?
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Could you expand on your answer a bit?
– DeaIss
Jun 11 '14 at 22:16
17
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Why is a round-trip conversion via a string not safe for a double?
Recently I have had to serialize a double into text, and then get it back. The value seems to not be equivalent:
3 Answers
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How to calculate “time ago” in Java?
In Ruby on Rails, there is a feature that allows you to take any Date and print out how "long ago" it was.
30 Answers
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Avoid trailing zeroes in printf()
...ll remove all but the first N decimals, then strip off the trailing zeros (and decimal point if they were all zeros).
char str[50];
sprintf (str,"%.20g",num); // Make the number.
morphNumericString (str, 3);
: :
void morphNumericString (char *s, int n) {
char *p;
int count;
p = str...
Get operating system info
...ing system info. I have not been able to find out how to do that with PHP, and wanted to try to figure it out.
7 Answers
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Pandas index column title or name
How do I get the index column name in python pandas? Here's an example dataframe:
9 Answers
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Find unique rows in numpy.array
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+1 This is clear, short and pythonic. Unless speed is a real issue, these type of solutions should take preference over the complex, higher voted answers to this question IMO.
– Bill Cheatham
Apr 30 '14 at 13:3...
Grid of responsive squares
...ing a layout with responsive squares . Each square would have vertically and horizontally aligned content. The specific example is displayed below...
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