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Execute Insert command and return inserted Id in Sql
...E t7;
GO
CREATE TABLE t6(id int IDENTITY);
CREATE TABLE t7(id int IDENTITY(100,1));
GO
CREATE TRIGGER t6ins ON t6 FOR INSERT
AS
BEGIN
INSERT t7 DEFAULT VALUES
END;
GO
--End of trigger definition
SELECT id FROM t6;
--IDs empty.
SELECT id FROM t7;
--ID is empty.
--Do the following in Session 1
...
How to implement the activity stream in a social network
... enough for most of the commonly-hit screens on your site. The most recent 100 for each user or something like that. With Redis in the mix, it might work like this:
Create your MySQL activity record
For each friend of the user who created the activity, push the ID onto their activity list in Redis...
How do I prompt for Yes/No/Cancel input in a Linux shell script?
...ar:
dialog --gauge "Filling the tank" 20 60 0 < <(
for i in {1..100};do
printf "XXX\n%d\n%(%a %b %T)T progress: %d\nXXX\n" $i -1 $i
sleep .033
done
)
Little demo:
#!/bin/sh
while true ;do
[ -x "$(which ${DIALOG%% *})" ] || DIALOG=dialog
DIALOG=$($DIALOG --m...
How are 3D games so efficient? [closed]
... a rather old, flickering CRT or a common LCD display. On a CRT running at 100Hz you will probably see framerates of up to 100Hz. VSync also applies in a similar way to LCD displays (they usually have a refresh rate of 60Hz).
So, the teapot demo may actually run much more efficient! If it uses 30% ...
What is the difference between a field and a property?
...Note that the given example doesn't encapsulate squat. This property gives 100 % full access to the private field, so this isn't object-oriented at all. You might as well have a public field in this case. Granted, it helps (marginally) to refactor code in the future, but any IDE worth it's mettle ca...
dd: How to calculate optimal blocksize? [closed]
...f=/dev/zero of=zero bs=8M; rm zero
I experimented with values from 4K to 100M.
After letting dd to run for a while I killed it (Ctlr+C) and read the output:
36+0 records in
36+0 records out
301989888 bytes (302 MB) copied, 15.8341 s, 19.1 MB/s
As dd displays the input/output rate (19.1MB/s in ...
Python vs Bash - In which kind of tasks each one outruns the other performance-wise? [closed]
...has. IFS, CDPATH.. thousands of them.
If one writing a script bigger than 100 LOC: choose Python
If one need path manipulation in script: choose Python(3)
If one need somewhat like alias but slightly complicated: choose Bash/sh
Anyway, one should try both sides to get the idea what are they capa...
Is floating-point math consistent in C#? Can it be?
...
+100
I know of no way to way to make normal floating points deterministic in .net. The JITter is allowed to create code that behaves diff...
nginx upload client_max_body_size issue
...HTTP client supports it, the best way to handle this is to send an Expect: 100-Continue header. Nginx supports this correctly as of 1.2.7, and will reply with a 413 Request Entity Too Large response rather than 100 Continue if Content-Length exceeds the maximum body size.
...
Drawing an SVG file on a HTML5 canvas
...VG (string) paths. In other words, you can write:
var path = new Path2D('M 100,100 h 50 v 50 h 50');
ctx.stroke(path);
Live example of that here.
Old posterity answer:
There's nothing native that allows you to natively use SVG paths in canvas. You must convert yourself or use a library to do it fo...