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SQL Update with row_number()
...recursive CTE must have a specific structure which requires the use of the UNION ALL set operator.
Instead, you could just have given the CTE a different name as well as added the target column to it:
With SomeName As
(
SELECT
CODE_DEST,
ROW_NUMBER() OVER (ORDER BY [RS_NOM] DESC) AS RN
FROM DESTI...
Why is sizeof considered an operator?
...s only possible if it's an operator rather than a function. For instance:
union foo {
int i;
char c[sizeof(int)];
};
Syntactically if it weren't an operator then it would have to be a preprocessor macro since functions can't take types as arguments. That would be a difficult macro to impl...
What did MongoDB not being ACID compliant before v4 really mean?
...a transactional database in conjunction with MongoDB. It is common to use MySQL to provide transactions for the things that absolutely need them while letting MongoDB (or any other NoSQL) do what it does best.
If my solution from #1 does not work in the long run, I will investigate further into co...
TCP 的那些事儿（下） - 更多技术 - 清泛网 - 专注C/C++及内核技术
...情况太糟糕，反应也很强烈。
sshthresh = cwnd /2
cwnd 重置为 1
进入慢启动过程
2）Fast Retransmit算法，也就是在收到3个duplicate ACK时就开启重传，而不用等到RTO超时。
TCP Tahoe的实现和RTO超时一样。
TCP Reno的...
AddRange to a Collection
...onstraint about the get-only property, which prevents solutions like doing Union and reassigning.)
8 Answers
...
jQuery OR Selector?
...tenation operator would). It really is an OR selector because it creates a UNION of two or more sets (whereas AND is an intersection).
– cletus
Feb 15 '10 at 3:59
...
what is the difference between XSD and WSDL
...this answer might be helpful.
WSDL is like 'SHOW TABLE STATUS' command in mysql. It defines all the elements(request type, response type, format of URL to hit request,etc.,) which should be part of XML. By definition I mean:
1) Names of request or response
2) What should be treated as input , what ...
How do I compare two hashes?
...> B.size doesn't necessarily mean A includes B. Still need to take the union of symmetric differences.
– Gene
Mar 5 '15 at 3:20
...
Join between tables in two different databases?
In MySQL, I have two different databases -- let's call them A and B .
4 Answers
4
...
How do I find duplicates across multiple columns?
...y
While most recent RDBMS versions support count(*) over(partition by...) MySQL V 8.0 introduced "window functions", as seen below (in MySQL 8.0)
CREATE TABLE stuff(
id INTEGER NOT NULL
,name VARCHAR(60) NOT NULL
,city VARCHAR(60) NOT NULL
);
INSERT INTO stuff(id,name,city) VALUES
...