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How to implement one-to-one, one-to-many and many-to-many relationships while designing tables?
...D)
);
INSERT INTO gov(GID, Name, Address, TermBegin)
values(110, 'Bob', '123 Any St', '1-Jan-2009');
INSERT INTO STATE values(111, 'Virginia', 2000000, 110);
One-to-many (1:M)
A relationship is one-to-many if and only if one record from table A is
related to one or more records in table B. How...
How to make good reproducible pandas examples
... data and results.
import numpy as np
import pandas as pd
np.random.seed(123)
A kitchen sink example
Here's an example showing a variety of things you can do. All kinds of useful sample dataframes could be created from a subset of this:
df = pd.DataFrame({
# some ways to create random d...
Why does overflow:hidden not work in a ?
...;
<tr>
<td><span class="no-overflow">123</span></td>
<td><span class="no-overflow">Lorem ipsum dolor sit amet, consectetur adipisicing elit</span></td>
<td><span class="no-overflow">sed do e...
insert vs emplace vs operator[] in c++ map
...will overwrite the previous value if one exists.
– dk123
Sep 30 '13 at 9:47
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Regular expression to match DNS hostname or IP Address?
...ould have to be escaped with \.
ValidHostnameRegex is valid as per RFC 1123. Originally, RFC 952 specified that hostname segments could not start with a digit.
http://en.wikipedia.org/wiki/Hostname
The original specification of
hostnames in RFC
952,
mandated that labels could not start...
Mock HttpContext.Current in Test Init Method
...dited Mar 11 '16 at 11:07
Rizier123
55k1616 gold badges7777 silver badges119119 bronze badges
answered Mar 11 '16 at 11:02
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Linux: compute a single hash for a given folder & contents?
...
123
One possible way would be:
sha1sum path/to/folder/* | sha1sum
If there is a whole directory ...
How to determine equality for two JavaScript objects?
....isFalse(objectEquals(/abc/, /abc/));
assert.isFalse(objectEquals(/abc/, /123/));
var r = /abc/;
assert.isTrue(objectEquals(r, r));
assert.isTrue(objectEquals("hi","hi"));
assert.isTrue(objectEquals(5,5));
assert.isFalse(objectEquals(5,10));
assert.isTrue(objectEquals([],[]));
assert.isT...
How do I remove diacritics (accents) from a string in .NET?
...
Or probably more efficiently c < 123. see ASCI
– Christian Gollhardt
Jan 5 '18 at 17:56
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Algorithm to return all combinations of k elements from n
...
Usage:
var result = Combinations(new[] { 1, 2, 3, 4, 5 }, 3);
Result:
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