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Compare DATETIME and DATE ignoring time portion
...BETWEEN operator doesn't work because it permits equality on both sides.
PS: Another means of extracting the date only (in older versions of SQL Server) is to use a trick of how the date is represented internally.
Cast the date as a float.
Truncate the fractional part
Cast the value back to a da...
指定组件的大小 · App Inventor 2 中文网
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指定组件的大小
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指定组件的大小
When you create a visible component in the designer, you are typically given the opportunity to specify its height and width. There a...
How to open a specific port such as 9090 in Google Compute Engine
...090, in "Protocols and Ports" enter tcp:9090
Click Create
I hope this helps you.
Update Please refer to docs to customize your rules.
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Generating a UUID in Postgres for Insert statement?
...apt-get install postgresql-contrib has successfully run. Then I had to run psql -d dbname -f SHAREDIR/contrib/module.sql and now it works!!! select uuid_generate_v1(); returns 1 now now. Thanks so much!
– anon58192932
Sep 29 '12 at 22:13
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Interfaces with static fields in java for sharing 'constants'
...that the new syntax would be respected by all your index implementations.
PS: The inspiration for this example is drawn from the Neo4j spatial code.
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Storing money in a decimal column - what precision and scale?
... for storage. Accountants generally seem to favour four decimal places.
PS Avoid SQL Server's MONEY data type because it has serious issues with accuracy when rounding, among other considerations such as portability etc. See Aaron Bertrand's blog.
Microsoft and language designers chose banker'...
Rotating a point about another point (2D)
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This is the answer by Nils Pipenbrinck, but implemented in c# fiddle.
https://dotnetfiddle.net/btmjlG
using System;
public class Program
{
public static void Main()
{
var angle = 180 * Math.PI/180;
Console.WriteLine(rotate_point(0,0,angle,new Point{X=10, Y=10}).Print()...
Check if a string contains a string in C++
...and many other staff.You can compare std::string to the string api in Java.PS:Also I do think contains is much more elegant than find to check if a string contains another string.
– Geng Jiawen
Jun 23 '14 at 8:01
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Is double square brackets [[ ]] preferable over single square brackets [ ] in Bash?
...ke = and =~.
In Bashese: [ is a built-in command, and [[ is a keyword: https://askubuntu.com/questions/445749/whats-the-difference-between-shell-builtin-and-shell-keyword
<
[[ a < b ]]: lexicographical comparison
[ a \< b ]: Same as above. \ required or else does redirection like for an...
Limitations of Intel Assembly Syntax Compared to AT&T [closed]
To me, Intel syntax is much easier to read. If I go traipsing through assembly forest concentrating only on Intel syntax, will I miss anything? Is there any reason I would want to switch to AT&T (outside of being able to read others' AT&T assembly)? My first clue is that gdb uses AT&T by default.
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