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OceanBase使用libeasy原理源码分析：服务器端 - 数据库(内核) - 清泛网 - ...
...SQL客户端发送握手包，同时接受客户端发送过来的用户名密码等信息，最后进行服务器端的验证，这几次
//交互过程是不经过libeasy网络框架的
handler_.on_connect = ObMySQLCallback::on_connect;<br>// 用于当请求处理完毕后，告诉工作线程...
How to update two tables in one statement in SQL Server 2005?
... by GROUP BY, HAVING, or DISTINCT clauses.
TOP is not used anywhere in the select_statement of the view together with the WITH CHECK OPTION clause.
In all honesty, though, you should consider using two different SQL statements within a transaction as per LBushkin's example.
UPDATE: My original ass...
MySQL error 1449: The user specified as a definer does not exist
...finer for views
Run this SQL to generate the necessary ALTER statements
SELECT CONCAT("ALTER DEFINER=`youruser`@`host` VIEW ",
table_name, " AS ", view_definition, ";")
FROM information_schema.views
WHERE table_schema='your-database-name';
Copy and run the ALTER statements
How to change the...
Optimal way to concatenate/aggregate strings
...Transact SQL, which should work fine in Azure.
;WITH Partitioned AS
(
SELECT
ID,
Name,
ROW_NUMBER() OVER (PARTITION BY ID ORDER BY Name) AS NameNumber,
COUNT(*) OVER (PARTITION BY ID) AS NameCount
FROM dbo.SourceTable
),
Concatenated AS
(
SELECT
...
MySQL INNER JOIN select only one row from second table
...have multiple associated payments in the payments table. I would like to select all users who have payments, but only select their latest payment. I'm trying this SQL but i've never tried nested SQL statements before so I want to know what i'm doing wrong. Appreciate the help
...
项目管理实践【三】每日构建【Daily Build Using CruiseControl.NET and MS...
...e Control Using VisualSVN Server and TortoiseSVN】中我们已经讲解了如何使用Torto 在上一篇项目管理实践教程二、源代码控制【Source Control Using VisualSVN Server and TortoiseSVN】中我们已经讲解了如何使用TortoiseSVN和VisualSVN Server来做简单的版本...
XPath OR operator for different nodes
...
If you want to select only one of two nodes with union operator, you can use this solution:
(//bookstore/book/title | //bookstore/city/zipcode/title)[1]
share
...
VSS使用指南 - 开源 & Github - 清泛网 - 专注IT技能提升
...域的密码不同，系统将提示用户输入VSS的登录密码。关于如何修改VSS用户密码，详见“3.2.14修改用户密码”。
3.2 VSS浏览器
当你一打开VSS，如果你设定了密码的话，它会提示你输入密码。如果你没有设定密码，你可以直接看到...
Office在线预览及PDF在线预览的实现方式大集合 - 更多技术 - 清泛网 - 专注...
...其它程序，比如SQLServer，在Office365服务器上每次重启IIS会重置，也就是说你不能有任何其它网站。其主要是用来与SharePoint搭配使用。
参考链接：
http://technet.microsoft.com/zh-cn/library/jj219456(v=office.15).aspx
六、第三方成熟的服...
Cloning a MySQL database on the same MySql instance
...IN db_a:
CREATE TABLE db_b.tbl LIKE db_a.tbl;
INSERT INTO db_b.tbl SELECT * FROM db_a.tbl;
The reason I'm not using the CREATE TABLE ... SELECT ... syntax is to preserve indices. Of course this only copies tables. Views and procedures are not copied, although it can be done in the same man...