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How to create a MySQL hierarchical recursive query
I have a MySQL table which is as follows:
15 Answers
15
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C#操作XML小结 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...Server.MapPath("~/file/bookstore.xml"));
二、具体实例
在C#.net中如何操作XML需要添加的命名空间：
using System.Xml;
定义几个公共对象：
XmlDocument xmldoc;
XmlNode xmlnode;
XmlElement xmlelem;
1，创建到服务器同名目录下的xml文件：
方法一：
...
Bash if statement with multiple conditions throws an error
...ration by reading an entrypoint.sh script written by the contributors from MySQL that checks whether the specified variables were set.
As the script shows, you can pipe them with -a, e.g.:
if [ -z "$MYSQL_ROOT_PASSWORD" -a -z "$MYSQL_ALLOW_EMPTY_PASSWORD" -a -z "$MYSQL_RANDOM_ROOT_PASSWORD" ]; the...
How can I prevent SQL injection in PHP?
...name ]);
foreach ($stmt as $row) {
// Do something with $row
}
Using MySQLi (for MySQL):
$stmt = $dbConnection->prepare('SELECT * FROM employees WHERE name = ?');
$stmt->bind_param('s', $name); // 's' specifies the variable type => 'string'
$stmt->execute();
$result = $stmt->...
How to log SQL statements in Grails
...6Spy.
B) look at it on database level. For example really easy to do with mysql.
Find out where you general_log_file is. Active general log if no activated already.
mysql command line> show variables like "%general_log%";
mysql command line> set global general_log = true;
Now everything i...
MYSQL Dump only certain rows
I am trying to do a mysql dump of a few rows in my database. I can then use the dump to upload those few rows into another database. The code I have is working, but it dumps everything. How can I get mysqldump to only dump certain rows of a table?
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Generating a random & unique 8 character string using MySQL
I'm working on a game which involves vehicles at some point. I have a MySQL table named "vehicles" containing the data about the vehicles, including the column "plate" which stores the License Plates for the vehicles.
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How to work with Git branches and Rails migrations
...'On branch ','').chomp
%>
defaults: &defaults
pool: 5
adapter: mysql2
encoding: utf8
reconnect: false
username: root
password:
host: localhost
<% environments.each do |environment| %>
<%= environment %>:
<<: *defaults
database: <%= [ database_prefix...
Getting raw SQL query string from PDO prepared statements
... prepare(), and the parameters are sent separately when you do execute(). MySQL's general query log does show the final SQL with values interpolated after you execute(). Below is an excerpt from my general query log. I ran the queries from the mysql CLI, not from PDO, but the principle is the sam...
Windows、Linux开放指定端口 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...口默认是被防火墙拦截禁止外部访问的。本文简要介绍了如何在不关闭防火墙的情况下开放指定端口。Windows篇：
以下步骤中未提供截图的按照默认设置即可：
设置后立即生效。
Linux篇：
vi /etc/sysconfig/iptables
添...