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How do you find the row count for all your tables in Postgres
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15 Answers
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How can I get the current page's full URL on a Windows/IIS server?
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Using group by on multiple columns
...---------+-------+
| Subject | Count |
+---------+-------+
| ITB001 | 5 |
| MKB114 | 2 |
+---------+-------+
...because there are 5 entries for ITB001, and 2 for MKB114
If we were to group by two columns:
select Subject, Semester, Count(*)
from Subject_Selection
group by Subject, Semester...
set the width of select2 input (through Angular-ui directive)
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215
You need to specify the attribute width to resolve in order to preserve element width
$(documen...
How important is the order of columns in indexes?
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Removing trailing newline character from fgets() input
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159
The slightly ugly way:
char *pos;
if ((pos=strchr(Name, '\n')) != NULL)
*pos = '\0';
else...
how to remove untracked files in Git?
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answered Nov 20 '11 at 9:35
manojldsmanojlds
248k5454 gold badges425425 silver badges395395 bronze badges
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How do I avoid capturing self in blocks when implementing an API?
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509
Short answer
Instead of accessing self directly, you should access it indirectly, from a refe...
How to convert current date into string in java?
...right below for the timestring. C:
– php_coder_3809625
Jul 13 '16 at 13:54
@Ian Purton Is string date in UTC tz ..?
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How to add an extra column to a NumPy array
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And timings:
In [23]: N = 10
In [24]: a = np.random.rand(N,N)
In [25]: %timeit b = np.hstack((a,np.zeros((a.shape[0],1))))
10000 loops, best of 3: 19.6 us per loop
In [27]: %timeit b = np.zeros((a.shape[0],a.shape[1]+1)); b[:,:-1] = a
100000 loops, best of 3: 5.62 us per loop
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