大约有 40,000 项符合查询结果（耗时：0.0206秒） [XML]
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...
Equals(=) vs. LIKE
... operators produce obviously different results. Allow me to quote from the MySQL manual:
Per the SQL standard, LIKE performs matching on a per-character basis, thus it can produce results different from the = comparison operator:
mysql> SELECT 'ä' LIKE 'ae' COLLATE latin1_german2_ci;
+----...
Multiple Updates in MySQL
...e, is there a way to update multiple rows at once (as in, in one query) in MySQL?
17 Answers
...
How can I make SQL case sensitive string comparison on MySQL?
...
http://dev.mysql.com/doc/refman/5.0/en/case-sensitivity.html
The default character set and collation are latin1 and latin1_swedish_ci, so nonbinary string comparisons are case insensitive by default. This means that if you search wi...
Python 3 ImportError: No module named 'ConfigParser'
I am trying to pip install the MySQL-python package, but I get an ImportError .
18 Answers
...
In MySQL, can I copy one row to insert into the same table?
...o you don't have to worry about the primary key. Setting it to null allows MySQL to choose the value itself, so there's no risk of creating a duplicate.
If you want to be super-sure you're only getting one row to insert, you could add LIMIT 1 to the end of the INSERT INTO line.
Note that I also ap...
What does mysql error 1025 (HY000): Error on rename of './foo' (errorno: 150) mean?
I tried this in mysql:
14 Answers
14
...
How do I see what character set a MySQL database / table / column is?
...
Should be noted that information_schema is only in MySQL 5 onwards I believe.
– Vex
Jun 26 '09 at 16:54
4
...
What is a proper naming convention for MySQL FKs?
Being that they must be unique, what should I name FK's in a MySQL DB?
4 Answers
4
...
How do I get the “id” after INSERT into MySQL database with Python?
...
Also, cursor.lastrowid (a dbapi/PEP249 extension supported by MySQLdb):
>>> import MySQLdb
>>> connection = MySQLdb.connect(user='root')
>>> cursor = connection.cursor()
>>> cursor.execute('INSERT INTO sometable VALUES (...)')
1L
>>> connect...