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Can we use join for two different database tables?
...able names.
Let's suppose you have two databases on the same server - Db1 and Db2. Db1 has a table called Clients with a column ClientId and Db2 has a table called Messages with a column ClientId (let's leave asside why those tables are in different databases).
Now, to perform a join on the above-...
How do I get rid of this unwanted bar from Eclipse?
...ar right. It looks like a little C with a green circle, a black triangle, and some small blue thing in the back. Find that button on your eclipse toolbar and click it to show/hide breadcrumbs.
If you don't see it, let me know, and I can try to figure out which toolbar it is a part of.
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CSS selector with period in ID
...ng through all the specs writing the question, I read through it some more and found there is an escape character. I've never needed it before, but the CSS spec does allow for backslash (\) escaping like most languages. What do you know?
So in my example, the following rule would match:
#some\.id ...
DROP IF EXISTS VS DROP?
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Standard SQL syntax is
DROP TABLE table_name;
IF EXISTS is not standard; different platforms might support it with different syntax, or not support it at all. In PostgreSQL, the syntax is
DROP TABLE IF EXISTS table_name;
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Sourcetree - undo unpushed commits
I am using Sourcetree for Windows for a git-repository and would like to undo an unpushed commit.
4 Answers
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How to generate controller inside namespace in rails
I have namespace admin in controller, and I want to generate a controller inside of the admin folder. How can i do it with a Rails command?
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Is there a difference between “raise exception()” and “raise exception” without parenthesis?
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The short answer is that both raise MyException and raise MyException() do the same thing. This first form auto instantiates your exception.
The relevant section from the docs says, "raise evaluates the first expression as the exception object. It must be either a subcla...
C# Iterate through Class properties
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You could possibly use Reflection to do this. As far as I understand it, you could enumerate the properties of your class and set the values. You would have to try this out and make sure you understand the order of the properties though. Refer to this MSDN Documentation for more informatio...
How to do a simple file search in cmd
...search for a file given its name or part of its name, from the windows command line (not power shell). This is similar to opening explorer and using the search box at the top.
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Html.BeginForm and adding properties
...t, new { enctype="multipart/form-data"})
Or you can pass null for action and controller to get the same default target as for BeginForm() without any parameters:
Html.BeginForm(
null, null, FormMethod.Post, new { enctype="multipart/form-data"})
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