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linux svn搭建配置及svn命令详解 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...以设置哪些用户可以访问哪些目录, passwd是设置用户和密码的, svnserve是设置svn相关的操作。
2 .1先设置passwd
[root@www ~]# vi passwd
[users]
# harry = harryssecret
# sally = sallyssecret
hello=123
用户名=密码
这样我们...
How to delete from select in MySQL?
...
SELECT (sub)queries return result sets. So you need to use IN, not = in your WHERE clause.
Additionally, as shown in this answer you cannot modify the same table from a subquery within the same query. However, you can either...
How to create a database from shell command?
... I get this error ERROR 1046 (3D000) at line 27: No database selected when I run echo "create database databasename" | mysql -u -u username -p command
– keerthi
Mar 15 '13 at 5:16
...
Can I concatenate multiple MySQL rows into one field?
...
You can use GROUP_CONCAT:
SELECT person_id, GROUP_CONCAT(hobbies SEPARATOR ', ')
FROM peoples_hobbies
GROUP BY person_id;
As Ludwig stated in his comment, you can add the DISTINCT operator to avoid duplicates:
SELECT person_id, GROUP_CONCAT(DISTINCT ...
“历史遗留”漏洞：浅析新型SSL/TLS漏洞FREAK - 创意 - 清泛网 - 专注C/C++及内核技术
...客里总结了关于FREAK漏洞相关情况，并给我们展示了黑客如何借此施展中间人攻击：
1.在客户端发出的Hello消息中，它会请求标准的RSA加密
2.中间人攻击者会改变请求内容，转而请求“出口级的RSA加密”
3.服务端会回馈一个512...
Possible to do a MySQL foreign key to one of two possible tables?
...ecific type of filter is easy if you know which type you want to join to:
SELECT * FROM Products
INNER JOIN FiltersType2 USING (product_id)
If you want the filter type to be dynamic, you must write application code to construct the SQL query. SQL requires that the table be specified and fixed at ...
mysql error 1364 Field doesn't have a default values
...nt tool, such as phpMyAdmin: -- verified that the mode was previously set select @@GLOBAL.sql_mode; -- UPDATE MODE SET @@global.sql_mode= 'YOUR_VALUE';
– anasanjaria
Dec 4 '13 at 18:17
...
Are PDO prepared statements sufficient to prevent SQL injection?
....
$pdo->query('SET NAMES gbk');
$var = "\xbf\x27 OR 1=1 /*";
$query = 'SELECT * FROM test WHERE name = ? LIMIT 1';
$stmt = $pdo->prepare($query);
$stmt->execute(array($var));
In certain circumstances, that will return more than 1 row. Let's dissect what's going on here:
Selecting a Cha...
brew install mysql on macOS
...wever, the UPDATE did not work since I do not have any records on select * from mysql.user; Since we are already logged in as root, we can simply insert one for root by running GRANT ALL PRIVILEGES ON . TO 'root'@'localhost' IDENTIFIED BY 'whatever'; FLUSH PRIVILEGES;
...
Equals(=) vs. LIKE
... can produce results different from the = comparison operator:
mysql> SELECT 'ä' LIKE 'ae' COLLATE latin1_german2_ci;
+-----------------------------------------+
| 'ä' LIKE 'ae' COLLATE latin1_german2_ci |
+-----------------------------------------+
| 0 |...