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PostgreSQL - fetch the row which has the Max value for a column
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On a table with 158k pseudo-random rows (usr_id uniformly distributed between 0 and 10k, trans_id uniformly distributed between 0 and 30),
By query cost, below, I am referring to Postgres' cost based optimizer's cost estimate (with Postgres' default xxx_cost values), which is a weig...
Testing HTML email rendering [closed]
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edited Apr 29 '19 at 22:56
kqueeneoa
5566 bronze b...
How to delete every other line in Vim?
... one, i.e., lines 2, 4, 6, etc. For example, if the buffer’s contents is:
12 Answers
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Best way to do Version Control for MS Excel
...just setup a spreadsheet that uses Bazaar, with manual checkin/out via TortiseBZR. Given that the topic helped me with the save portion, I wanted to post my solution here.
The solution for me was to create a spreadsheet that exports all modules on save, and removes and re-imports the modules on ope...
C#: Abstract classes need to implement interfaces?
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In C#, a class that implements an interface is required to define all members of that interface. In the case of an abstract class, you simply define those members with the abstract keyword:
interface IFoo
{
void Bar();
}
abstract class Foo : IFoo
{
public abs...
How to search contents of multiple pdf files?
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Your distribution should provide a utility called pdftotext:
find /path -name '*.pdf' -exec sh -c 'pdftotext "{}" - | grep --with-filename --label="{}" --color "your pattern"' \;
The "-" is necessary to have pdftotext output to ...
WCF on IIS8; *.svc handler mapping doesn't work
I'm trying to get a wcf service running in IIS8 on 2012 build 8400.
12 Answers
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Undo part of unstaged changes in git
...taged changes in git but keep the rest as unstaged? The way I figured out is:
7 Answers
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Horizontal ListView in Android?
Is it possible to make the ListView horizontally? I have done this using a gallery view, but the selected item comes to the center of the screen automatically. I don't want the selected item at the same spot I clicked. How can I rectify this problem? My idea was to set the ListView with a horizo...
Don't reload application when orientation changes
I simply need nothing to change when the screen is rotated. My app displays a random image when it first loads and rotating the device should not select another random image.
How can I (simply) make this behavior stop?
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