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How to DROP multiple columns with a single ALTER TABLE statement in SQL Server?
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create table test (a int, b int , c int, d int);
alter table test drop column b, d;
Be aware that DROP COLUMN does not physically remove the data, and for fixed length types (int, numeric, float, datetime, uniqueidentifier etc) the spac...
Understanding the main method of python [duplicate]
...alled from the command line. In many cases this is used for managing unit tests. If a particular file defines functionality which is only useful in the context of other components of a system then one can still use __name__ == "__main__" to isolate a block of code which calls a suite of unit tests...
How to use System.Net.HttpClient to post a complex type?
... code (from dunston) becomes:
Widget widget = new Widget()
widget.Name = "test"
widget.Price = 1;
HttpClient client = new HttpClient();
client.BaseAddress = new Uri("http://localhost:44268");
client.PostAsJsonAsync("api/test", widget)
.ContinueWith((postTask) => postTask.Result.EnsureSucces...
Capitalize only first character of string and leave others alone? (Rails)
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This should do it:
title = "test test"
title[0] = title[0].capitalize
puts title # "Test test"
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Rename MySQL database [duplicate]
...emonstrate the use of this script, used a sample schema “emp”, created test triggers, stored routines on that schema. Will try to rename the database schema using the script, which takes some seconds to complete as opposed to time consuming dump/restore method.
mysql> show databases;
+------...
Why does javascript map function return undefined?
...an implement like a below logic.
Suppose you want an array of values.
let test = [ {name:'test',lastname:'kumar',age:30},
{name:'test',lastname:'kumar',age:30},
{name:'test3',lastname:'kumar',age:47},
{name:'test',lastname:'kumar',age:28},
{name:'...
Can I have H2 autocreate a schema in an in-memory database?
...could run a script, or just a statement or two:
String url = "jdbc:h2:mem:test;" +
"INIT=CREATE SCHEMA IF NOT EXISTS TEST"
String url = "jdbc:h2:mem:test;" +
"INIT=CREATE SCHEMA IF NOT EXISTS TEST\\;" +
"SET SCHEMA TEST";
String url = "jdbc:h2:mem;" + ...
How to test if a string is basically an integer in quotes using Ruby
... to see the syntax, changed the regex to apply to the problem at hand, and tested it. It's pretty neat actually .. I may have to give it a longer look when I have more spare time.
– Rado
Aug 5 '09 at 22:21
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release Selenium chromedriver.exe from memory
...orkplace, we've noticed a huge problem when trying to execute chromedriver tests in the Java platform, where the chromedriver.exe actually still exists even after using browser.quit(). To counter this, we created a batch file similar to this one below, that just forces closed the processes.
kill_c...
Rspec doesn't see my model Class. uninitialized constant error
I'm writing tests on Rspec for my models in Ruby on Rails application.
And I receive this error while starting 'rspec spec'
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