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How to delete the top 1000 rows from a table using Sql Server 2008?
...ements. A DELETE followed by a SELECT.
You don't define TOP as ordered by what.
For a specific ordering criteria deleting from a CTE or similar table expression is the most efficient way.
;WITH CTE AS
(
SELECT TOP 1000 *
FROM [mytab]
ORDER BY a1
)
DELETE FROM CTE
...
Practical non-image based CAPTCHA approaches?
...heory being that:
A spam bot will not support JavaScript and will submit what it sees
If the bot does support JavaScript it will submit the form instantly
The commenter has at least read some of the page before posting
The downside to this method is that it requires JavaScript, and if you don't ...
Updating Bootstrap to version 3 - what do I have to do?
I'm new to Bootstrap and have the older version 2.3.2.
8 Answers
8
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What size should apple-touch-icon.png be for iPad and iPhone?
Are Apple touch icons bigger than 60x60 supported, and if so, what dimensions should I use for the iPad and iPhone?
11 Answ...
What is the meaning of id?
...fiers in Objective-C, which can
be use for an object of any type no matter what class does it have.
id is the final super type of all objects.
In java or c# we use like this
Object data = someValue;
String name =(Object)data;
but in objective c
id data= someValue;
NSString *name= data;
...
Is file append atomic in UNIX?
In general, what can we take for granted when we append to a file in UNIX from multiple processes? Is it possible to lose data (one process overwriting the other's changes)? Is it possible for data to get mangled? (For example, each process is appending one line per append to a log file, is it po...
JavaScript checking for null vs. undefined and difference between == and ===
... course] `false`)
}
This is defined by ToBoolean in the spec.
...and what is the difference between the null and undefined?
They're both values usually used to indicate the absence of something. undefined is the more generic one, used as the default value of variables until they're assigned ...
How can I use xargs to copy files that have spaces and quotes in their names?
...
What's wrong with find . -name 'FooBar' -print0 | xargs -0 ...?
– Quentin Pradet
May 17 '14 at 9:42
1
...
How to iterate over arguments in a Bash script
...ional parameter ($0) is not included inside $@ or "$@". This is in general what you want when executing a script file but this may surprise you when executing bash -c 'echo "$@"' a b only shows b.
– Gabriel Devillers
Aug 11 '19 at 20:00
...
Why can't I declare static methods in an interface?
The topic says the most of it - what is the reason for the fact that static methods can't be declared in an interface?
14 A...