大约有 48,000 项符合查询结果（耗时：0.0448秒） [XML]
Default value of BOOL
...
answered May 27 '10 at 9:05
kennytmkennytm
451k9292 gold badges980980 silver badges958958 bronze badges
...
How to find gaps in sequential numbering in mysql?
...sible) answer
Here's version that works on table of any size (not just on 100 rows):
SELECT (t1.id + 1) as gap_starts_at,
(SELECT MIN(t3.id) -1 FROM arrc_vouchers t3 WHERE t3.id > t1.id) as gap_ends_at
FROM arrc_vouchers t1
WHERE NOT EXISTS (SELECT t2.id FROM arrc_vouchers t2 WHERE t2.i...
How to wait for a keypress in R?
...}
onKeybd <- function(key)
{
keyPressed <<- key
}
xaxis=c(1:10) # Set up the x-axis.
yaxis=runif(10,min=0,max=1) # Set up the y-axis.
plot(xaxis,yaxis)
for (i in xaxis)
{
# On each keypress, color the points on the graph in red, one by one.
points(i,yaxis[i],col="red", pch=19...
Creating hard and soft links using PowerShell
...
– Cameron Oakenleaf
Sep 23 '17 at 5:10
2
@SergeVoloshenko It sure does. True, using New-Item does...
Determine Whether Integer Is Between Two Other Integers?
...a given integer is between two other integers (e.g. greater than/equal to 10000 and less than/equal to 30000 )?
11 Answe...
How to select first and last TD in a row?
...
answered Aug 29 '11 at 10:18
James AllardiceJames Allardice
152k2121 gold badges309309 silver badges301301 bronze badges
...
Why would someone use WHERE 1=1 AND in a SQL clause?
...
answered Oct 28 '08 at 10:39
Greg HewgillGreg Hewgill
783k167167 gold badges10841084 silver badges12221222 bronze badges
...
Can we have functions inside functions in C++?
... std::cout << message << "\n";
};
// Prints "Hello!" 10 times
for(int i = 0; i < 10; i++) {
print_message("Hello!");
}
}
Lambdas can also modify local variables through **capture-by-reference*. With capture-by-reference, the lambda has access to all local ...
How to automatically reload a page after a given period of inactivity
...dow.location.reload(true);
else
setTimeout(refresh, 10000);
}
setTimeout(refresh, 10000);
</script>
share
|
improve this answer
|
fol...