大约有 1,100 项符合查询结果（耗时：0.0147秒） [XML]
Turning a Comma Separated string into individual rows
...NUMBER() OVER (ORDER BY (SELECT NULL)) FROM E4
),
cteStart(N1) AS (--==== This returns N+1 (starting position of each "element" just once for each delimiter)
SELECT 1 UNION ALL
SELECT t.N+1 FROM cteTally t WHERE SUBSTRING(@pString,t.N,1) = @pDelimite...
Git Blame Commit Statistics
...
Update
git ls-tree -r -z --name-only HEAD -- */*.c | xargs -0 -n1 git blame \
--line-porcelain HEAD |grep "^author "|sort|uniq -c|sort -nr
I updated some things on the way.
For convenience, you can also put this into its own command:
#!/bin/bash
# save as i.e.: git-authors and set ...
What exactly does big Ө notation represent?
...ound.
Theta(g(n)) = { f(n) : there exists positive constants c1,c2 and n1 such that
0<=c1(g(n))<=f(n)<=c2(g(n)) for all n>=n1 }
when we say f(n)=c2(g(n)) or f(n)=c1(g(n)) it represents asymptotically tight bound.
O(n): It gives only upper bound (may or may not b...
How to import local packages without gopath
...e were the same file.
This is an example:
add.go
package math
func add(n1, n2 int) int {
return n1 + n2
}
subtract.go
package math
func subtract(n1, n2 int) int {
return n1 - n2
}
donothing.go
package math
func donothing(n1, n2 int) int {
s := add(n1, n2)
s = subtract(n1, ...
How to create a sequence of integers in C#?
...rwise the Enumerable.Range should do.
IEnumerable<int> Sequence(int n1, int n2)
{
while (n1 <= n2)
{
yield return n1++;
}
}
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Finding duplicate rows in SQL Server
...answer that worked just great: Get list of duplicate rows in MySql
SELECT n1.*
FROM myTable n1
INNER JOIN myTable n2
ON n2.repeatedCol = n1.repeatedCol
WHERE n1.id <> n2.id
share
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improve...
What is the Linux equivalent to DOS pause?
...
read does this:
user@host:~$ read -n1 -r -p "Press any key to continue..." key
[...]
user@host:~$
The -n1 specifies that it only waits for a single character. The -r puts it into raw mode, which is necessary because otherwise, if you press something like ba...
OceanBase使用libeasy原理源码分析：服务器端 - 数据库(内核) - 清泛网 - ...
...thread_t *old_ioth;
easy_listen_t *next;
//有多少个IO线程就有多少个watcher, 每个watcher都监听fd上的EV_READ和EV_CLEANUP事件
ev_io read_watcher[0];
};
easy_connection_add_listen：
从eio->pool中为easy_listen_t和io线程个...
How to compare two floating point numbers in Bash?
...ematics. You can use this bash utility function:
numCompare() {
awk -v n1="$1" -v n2="$2" 'BEGIN {printf "%s " (n1<n2?"<":">=") " %s\n", n1, n2}'
}
And call it as:
numCompare 5.65 3.14e-22
5.65 >= 3.14e-22
numCompare 5.65e-23 3.14e-22
5.65e-23 < 3.14e-22
numCompare 3.145678 3...
How to find the nearest parent of a Git branch?
..." \
| grep "\*" \
| grep -v "$(git rev-parse --abbrev-ref HEAD)" \
| head -n1 \
| sed "s/^.*\[//"
With awk:
git show-branch -a \
| grep '\*' \
| grep -v `git rev-parse --abbrev-ref HEAD` \
| head -n1 \
| sed 's/[^\[]*//' \
| awk 'match($0, /\[[a-zA-Z0-9\/-]+\]/) { print substr( $0, RSTART+1, RLE...