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How do I find a “gap” in running counter with SQL?
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In MySQL and PostgreSQL:
SELECT id + 1
FROM mytable mo
WHERE NOT EXISTS
(
SELECT NULL
FROM mytable mi
WHERE mi.id = mo.id + 1
)
ORDER BY
id
LIMIT 1
In SQL Server:
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Start / Stop a Windows Service from a non-Administrator user account
...ING : /grant=mike=f : No previous object opened". The service I tried was MySQL. Reboot: access is denied, as ever.
– mike rodent
Mar 14 '16 at 21:29
add a comment
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Join between tables in two different databases?
In MySQL, I have two different databases -- let's call them A and B .
4 Answers
4
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Sublime Text 3能用支持的插件推荐 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...方法不管用，可以看看我之前写的一篇文章，Sublime text 3如何安装package control办法。
此外，安装sublime text 3的插件还可以在github上下载源文件，解压后改名放到
C:\Users\Mr.DenGo(你的电脑名)\AppData\Roaming\Sublime Text 3\Packages 中
重启su...
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...
There can be only one auto column
How do I correct the error from MySQL 'you can only have one auto increment column'.
4 Answers
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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
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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 ...
PDO get the last ID inserted
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@rybo111, first it's Screaming snake case. second, it's MySQL naming convention and is not PHP
– azerafati
Jul 23 '15 at 11:56
2
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How does Amazon RDS backup/snapshot actually work?
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We also run several RDS instances, in addition to MySQL on some machines that we manage ourselves. I can't comment specifically, as I'm not an Amazon engineer, but several things I've learned that might explain what you're seeing:
Although Amazon does not share the backend...