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How to implement one-to-one, one-to-many and many-to-many relationships while designing tables?

... Highly active question. Earn 10 reputation in order to answer this question. The reputation requirement helps protect this question from spam and non-answer activity. ...
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Best practice for partial updates in a RESTful service

...would I construct an URI if I want the system to send an email to customer 123? Something like a pure RPC method call that doesn't change the state of the object at all. What is the RESTful way of doing this? – magiconair Mar 14 '10 at 20:08 ...
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How to output only captured groups with sed?

...e output as well as specifying what you do want. string='This is a sample 123 text and some 987 numbers' echo "$string" | sed -rn 's/[^[:digit:]]*([[:digit:]]+)[^[:digit:]]+([[:digit:]]+)[^[:digit:]]*/\1 \2/p' This says: don't default to printing each line (-n) exclude zero or more non-digits i...
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Best way to work with dates in Android SQLite [closed]

...le values ( strftime('%Y-%m-%d %H:%M:%f', '2014-03-01 13:01:01.123'), strftime('%Y-%m-%d %H:%M:%f', '2014-03-01 13:01:01.123'), strftime('%Y-%m-%d %H:%M:%f', '2014-03-01 13:01:01.123') ); sqlite> insert into test_table values ( strftime('%Y-...
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Remove duplicate dict in list in Python

...that. However, with a few lines of code, you can also do that: l = [{'a': 123, 'b': 1234}, {'a': 3222, 'b': 1234}, {'a': 123, 'b': 1234}] seen = set() new_l = [] for d in l: t = tuple(d.items()) if t not in seen: seen.add(t) new_l.append(d) print new_l Ex...
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Convert camelCaseText to Sentence Case Text

...senceButAPersonalIDCardForUser456InRoom26AContainingABC26TimesIsNotAsEasyAs123ForC3POOrR2D2Or2R2D This should be converted to: To Get Your GED In Time A Song About The 26 ABCs Is Of The Essence But A Personal ID Card For User 456 In Room 26A Containing ABC 26 Times Is Not As Easy As 123 For C3PO Or ...
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How to match, but not capture, part of a regex?

I have a list of strings. Some of them are of the form 123-...456 . The variable portion "..." may be: 7 Answers ...
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Round double in two decimal places in C#?

...can try one from below.there are many way for this. 1. value=Math.Round(123.4567, 2, MidpointRounding.AwayFromZero) //"123.46" 2. inputvalue=Math.Round(123.4567, 2) //"123.46" 3. String.Format("{0:0.00}", 123.4567); // "123.46" 4. string.Format("{0:F2}", 123.456789); //123.46 string...
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Find string between two substrings [duplicate]

How do I find a string between two substrings ( '123STRINGabc' -> 'STRING' )? 20 Answers ...
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How do you round a number to two decimal places in C#?

... 140.67 ========= // just two decimal places String.Format("{0:0.##}", 123.4567); // "123.46" String.Format("{0:0.##}", 123.4); // "123.4" String.Format("{0:0.##}", 123.0); // "123" can also combine "0" with "#". String.Format("{0:0.0#}", 123.4567) // "123.46" Strin...