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What are the use cases for selecting CHAR over VARCHAR in SQL?
...verhead)
VARCHAR(100) = 8 bytes (2 bytes of overhead)
CHAR(10) = 10 bytes (4 bytes of waste)
The bottom line is CHAR can be faster and more space-efficient for data of relatively the same length (within two characters length difference).
Note: Microsoft SQL has 2 bytes of overhead for a VARCHAR. Th...
How do I create an HTML table with a fixed/frozen left column and a scrollable body?
...ZXCVBNM</td></tr>
<tr><th class="headcol">4</th><td class="long">QWERTYUIOPASDFGHJKLZXCVBNM</td><td class="long">QWERTYUIOPASDFGHJKLZXCVBNM</td></tr>
<tr><th class="headcol">5</th><td class="long">Q...
How to Get Element By Class in JavaScript?
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edited Mar 10 '14 at 5:33
answered Sep 28 '10 at 0:35
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How to get the list of all installed color schemes in Vim?
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edited Jun 30 '15 at 7:48
answered Sep 7 '11 at 9:56
Xav...
Git repository broken after computer died
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answered Mar 10 '16 at 4:47
jfrumarjfrumar
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LEN function not including trailing spaces in SQL Server
...the DATALENGTH function - see http://msdn.microsoft.com/en-us/library/ms173486(SQL.90).aspx - which "returns the number of bytes used to represent any expression".
Example:
SELECT
ID,
TestField,
LEN(TestField) As LenOfTestField, -- Does not include trailing spaces
DATA...
Reading 64bit Registry from a 32bit application
...a c# unit test project that is compiled for AnyCPU. Our build server is a 64bit machine, and has a 64bit SQL Express instance installed.
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How to embed small icon in UILabel
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kelin
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answered Oct 11 '13 at 14:25
Scott BerrevoetsSco...
How to set timer in android?
...
471
ok since this isn't cleared up yet there are 3 simple ways to handle this.
Below is an example...
What's the cleanest way of applying map() to a dictionary in Swift?
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Swift 4+
Good news! Swift 4 includes a mapValues(_:) method which constructs a copy of a dictionary with the same keys, but different values. It also includes a filter(_:) overload which returns a Dictionary, and init(uniqueKeysWi...