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Printing the value of a variable in SQL Developer
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Make server output on First of all
SET SERVEROUTPUT on then
Go to the DBMS Output window (View->DBMS Output)
then Press Ctrl+N for connecting server
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How do I list all the columns in a table?
For the various popular database systems, how do you list all the columns in a table?
12 Answers
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How enumerate all classes with custom class attribute?
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I like LINQ. Love it, actually. But it takes a dependency on .NET 3.5, which yield return does not. Also, LINQ eventually breaks down to essentially the same thing as yield return. So what have you gained? A particular C# syntax, that is a prefere...
Extracting an attribute value with beautifulsoup
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.find_all() returns list of all found elements, so:
input_tag = soup.find_all(attrs={"name" : "stainfo"})
input_tag is a list (probably containing only one element). Depending on what you want exactly you either should do:
out...
What are enums and why are they useful?
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You should always use enums when a variable (especially a method parameter) can only take one out of a small set of possible values. Examples would be things like type constants (contract status: "permanent", "temp", "apprentice"), or flags ("execute now", "defer execution")....
Pretty git branch graphs
I've seen some books and articles have some really pretty looking graphs of git branches and commits. How can I make high-quality printable images of git history?
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How to enable mod_rewrite for Apache 2.2
I've got fresh install of Apache 2.2 on my Vista machine, everything works fine, except mod rewrite.
15 Answers
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Does a javascript if statement with multiple conditions test all of them?
...statement with multiple conditions to test for, does javascript test them all regardless, or will it bail before testing them all if it's already false?
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Guid is all 0's (zeros)?
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Use the static method Guid.NewGuid() instead of calling the default constructor.
var responseObject = proxy.CallService(new RequestObject
{
Data = "misc. data",
Guid = Guid.NewGuid()
});
s...
How to extract img src, title and alt from html using php? [duplicate]
I would like to create a page where all images which reside on my website are listed with title and alternative representation.
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