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SQL join: selecting the last records in a one-to-many relationship
Suppose I have a table of customers and a table of purchases. Each purchase belongs to one customer. I want to get a list of all customers along with their last purchase in one SELECT statement. What is the best practice? Any advice on building indexes?
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What is the simplest SQL Query to find the second largest value?
... produce the correct second largest value while if you used the top 2 desc and min approach, you may get the largest value instead.
– Pankaj Sharma
Apr 1 '13 at 19:22
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How do I declare class-level properties in Objective-C?
... answered Mar 30 '09 at 4:50
Andrew GrantAndrew Grant
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SELECT INTO Variable in MySQL DECLARE causes syntax error?
... I used MySQL workbench version 5.2.47 rev 10398 on Fedora 18 and there is not such problem with it.
– GoYun.Info
Apr 18 '13 at 16:04
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PHP script to loop through all of the files in a directory?
...of files, such as the script itself or other "system" files. (Like the . and .. "directories".)
8 Answers
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In C#, what happens when you call an extension method on a null object?
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I was referring to the difference between call and callvirt il instructions. In one edit I actually tried to href the two Opcodes pages, but the editor barfed at the links...
– Marc Gravell♦
May 11 '09 at 9:48
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Simplest way to read json from a URL in java
This might be a dumb question but what is the simplest way to read and parse JSON from URL in Java ?
11 Answers
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How to get a group of toggle buttons to act like radio buttons in WPF?
...Style>
Then you can use the SelectionMode property of the ListBox to handle SingleSelect vs MultiSelect.
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Determining the last changelist synced to in Perforce
... the server using:
p4 changes -s submitted -m1
then sync to that change and record it in the revision info. The reason is as follows. Although Perforce recommends the following to determine the changelist to which the workspace is synced:
p4 changes -m1 @clientname
they note a few gotchas:
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Application Skeleton to support multiple screens
As we know Android coming with various device which having different
Features, Resolution, and Screen-size so while developing an Application which support
multiple (small and big) screen there is an obstacle of size and layout.
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