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How to find gaps in sequential numbering in mysql?
...ECT a AS id, b AS next_id, (b - a) -1 AS missing_inbetween
FROM
(
SELECT a1.id AS a , MIN(a2.id) AS b
FROM arrc_vouchers AS a1
LEFT JOIN arrc_vouchers AS a2 ON a2.id > a1.id
WHERE a1.id <= 100
GROUP BY a1.id
) AS tab
WHERE
b > a + 1
This will give you a table showing the id that has...
Copy folder recursively, excluding some folders
...if [ -z "$exclude" ]; then
cp "$from" "$to"
return
fi
ls -A1 "$from" \
| while IFS= read -r f; do
unset excluded
if [ -n "$exclude" ]; then
for x in $(printf "$exclude"); do
if [ "$f" = "$x" ]; then
excluded=1
break...
Consequences of using graft in Mercurial
...What just happened here? So....... how does that work? Why is it better?
A1: Using merges is better than patches since the merge machinery takes things like renames into account.
Q2: Is this merge just a normal 3-way merge using D, J' and M1?
A2: Yes, grafting does not alter the topology of the g...
Add leading zeroes/0's to existing Excel values to certain length
...
=TEXT(A1,"0000")
However the TEXT function is able to do other fancy stuff like date formating, aswell.
share
|
improve this an...
Allowed characters in Linux environment variable names
...
bmarguliesbmargulies
88.7k3232 gold badges162162 silver badges282282 bronze badges
...
IF statement: how to leave cell blank if condition is false (“” does not work)
... Thanks for the tip! That is precisely what I did! I tried = IF(A1,B1, NA()), and I used Go To -> Special -> Formula -> Errors and I successfully deleted the cells that don't satisfy the condition! Thanks for the tip again!
– Mayou
Sep 12 '1...
R: Comment out block of code [duplicate]
...
I have dealt with this at talkstats.com in posts 94, 101 & 103 found in the thread: Share Your Code. As others have said Rstudio may be a better way to go. I store these functions in my .Rprofile and actually use them a but to automatically block out lines of code qui...
vertical align middle in
... Burak ÇangaBurak Çanga
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When to use Comparable and Comparator
...
andrewjames
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answered May 22 '18 at 6:21
Joby Wilson MathewsJoby Wilson Mathews...
Efficient Algorithm for Bit Reversal (from MSB->LSB to LSB->MSB) in C
...A0, 0x60, 0xE0, 0x10, 0x90, 0x50, 0xD0, 0x30, 0xB0, 0x70, 0xF0,
0x08, 0x88, 0x48, 0xC8, 0x28, 0xA8, 0x68, 0xE8, 0x18, 0x98, 0x58, 0xD8, 0x38, 0xB8, 0x78, 0xF8,
0x04, 0x84, 0x44, 0xC4, 0x24, 0xA4, 0x64, 0xE4, 0x14, 0x94, 0x54, 0xD4, 0x34, 0xB4, 0x74, 0xF4,
0x0C, 0x8C, 0x4C, 0xCC, 0x2C, 0xAC,...