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How to extract one column of a csv file
...le DOS style line breaks (CRLF i.e. "\r\n") and UTF-16 encoding (with byte order mark) to "\n" and UTF-8 (without byte order mark), respectively. Standard CSV files use CRLF as line break, see Wikipedia.
If the input may contain multiline fields, you can use the following script. Note the use of sp...
How do I get NuGet to install/update all the packages in the packages.config?
...tall each package
$packages.packages.package | % { Install-Package -id $($_.id) -Version $($_.version) }
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Unique constraint on multiple columns
...ied from technet's documentation, is in the form of:
CONSTRAINT constraint_name UNIQUE [ CLUSTERED | NONCLUSTERED ]
(
column [ ASC | DESC ] [ ,...n ]
)
Therefore, the resuting table definition would be:
CREATE TABLE [dbo].[user](
[userID] [int] IDENTITY(1,1) NOT NULL,
[fcode] [int] ...
Is there common street addresses database design for all addresses of the world? [closed]
...della Repubblica
89861 Tropea VV
Italy
That is rather different from the order for US addresses - on the second line.
See also the SO questions:
How many address fields would you use for a UK database?
Do you break up addresses into street / city / state / zip?
How do you deal with duplicate st...
What's the difference between an object initializer and a constructor?
...
Object Initializers were something added to C# 3, in order to simplify construction of objects when you're using an object.
Constructors run, given 0 or more parameters, and are used to create and initialize an object before the calling method gets the handle to the created ob...
Building a fat jar using maven
... the manifest file for me.
I had to add it to the maven-assembly-plugin in order to get that in the manifest
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How to define hash tables in Bash?
...are the answer by introducing the concepts:
First, indirection.
$ animals_moo=cow; sound=moo; i="animals_$sound"; echo "${!i}"
cow
Secondly, declare:
$ sound=moo; animal=cow; declare "animals_$sound=$animal"; echo "$animals_moo"
cow
Bring them together:
# Set a value:
declare "array_$index=$...
Calling constructor from other constructor in same class
...
The order of constructor evaluation must also be taken into consideration when chaining constructors:
To borrow from Gishu's answer, a bit (to keep code somewhat similar):
public Test(bool a, int b, string c)
: this(a, b)
{...
Java regex email
...ddresses. The Regexp's are very similar:
public static final Pattern VALID_EMAIL_ADDRESS_REGEX =
Pattern.compile("^[A-Z0-9._%+-]+@[A-Z0-9.-]+\\.[A-Z]{2,6}$", Pattern.CASE_INSENSITIVE);
public static boolean validate(String emailStr) {
Matcher matcher = VALID_EMAIL_ADDRESS_REGEX.matche...
How can I make SQL case sensitive string comparison on MySQL?
...vity.html
The default character set and collation are latin1 and latin1_swedish_ci, so nonbinary string comparisons are case insensitive by default. This means that if you search with col_name LIKE 'a%', you get all column values that start with A or a. To make this search case sensitive, make ...