ZendStudio 6.0.1 升级时 RSE 错误的问题

2010-09-01T05:55:00Z

ZendStudio 6.0.1 在线升级的时候会出现如下错误:

When performing new features (plug-ins) installation the following message may appear in the Search Results dialog:RSE Feature Patch (3.0.2.v20090119-1307w311_122_) requires feature "org.eclipse.rse"

解决办法为http://www.zend.com/en/support/knowledgebase.php?kbid=356&view_only=1，其实就是需要安装RSE相关的一些包。

转载如下：

In Zend Studio for Eclipse, go to Help | Software Updates | Find and Install...
In the Feature Updates dialog, select the second option Search for new features to install and click Next
In the Update sites to visit dialog, select the Target Management Updates and click Finish

Note: You may want to check the Automatically select mirrors checkbox before clicking Finish, in order to skip the mirror selection prompt
In the Search Results dialog, uncheck the Show the latest version of a feature only checkbox

Open the hierarchy Target Management Updates | TM and RSE 3.0.2 Mark the first three plug-ins, namely:
- Remote System Explorer Core 3.0.2.v200812041720-7Z37BEB7sQS9UkXMIjJI
- RSE DStore Services 3.0.2.v200812041720-7J35DUUEFDHoHxAT97
- Remote System Explorer End-User Runtime 3.0.2.v200812041720-7H3788qfeqHMeUOEQ2IKjVLIiQ8
注：这里需要注意，由于选中了显示最新的软件包，可能需要的版本没有出现。这就需要取消最新版本那个选项，然后选择出现错误所需要的那个版本即可。
Click Next and complete the installation by accepting the defaults in the dialogs to follow
Restart Zend Studio for Eclipse

本文链接

python mysql 数据库交互

2010-08-31T13:57:00Z

1.确认已经安装了 MySQLdb module


Python 1.5.2 (#1, Feb 1 2000, 16:32:16) [GCC egcs-2.91.66
19990314/Linux
(egcs- on linux-i386
Copyright 1991-1995 Stichting Mathematisch Centrum, Amsterdam
>>> import MySQLdb
Traceback (innermost last):
File "<stdin>", line 1, in ?
ImportError: No module named MySQLdb
>>>

这样的消息说明没有安装MySQLdb, 从http://sourceforge.net/projects/mysql-python下载安装。


$ tar -xzvf MySQL-python-0.9.2.tar.gz
$ cd MySQL-python-0.9.2
$ python setup.py build
$ python setup.py install



再检查：


Python 1.5.2 (#1, Feb 1 2000, 16:32:16) [GCC egcs-2.91.66
19990314/Linux
(egcs- on linux-i386
Copyright 1991-1995 Stichting Mathematisch Centrum, Amsterdam
>>> import MySQLdb
>>> 




然后我们用以下这个数据表：







mysql> SELECT * FROM animals;
+---------+----------+
| name | species |
+---------+----------+
| Wallace | Walrus |
| Polly | Parrot |
| Freddie | Frog |
| Tusker | Elephant |
| Sammy | Skunk |
+---------+----------+
5 rows in set (0.01 sec)

然后用这个短小的python 代码，检索并打印出每条记录

#!/usr/bin/python
# import MySQL module
import MySQLdb
# connect
db = MySQLdb.connect(host="localhost", user="joe", passwd="secret",
db="db56a")
# create a cursor
cursor = db.cursor()
# execute SQL statement
cursor.execute("SELECT * FROM animals")
# get the resultset as a tuple
result = cursor.fetchall()
# iterate through resultset
for record in result:
print record[0] , "-->", record[1]

然后我们一步一步认识下这个过程，先是 python 导入 MySQLdb module



# import MySQL module
import MySQLdb

之后打开一个数据库连接，需要参数 服务器，用户名，密码，数据库名



# connect
db = MySQLdb.connect(host="localhost", user="joe", passwd="secret",
db="db56a")

成功连接后可以得到一个db对象，可以生成游标

# create a cursor
cursor = db.cursor()

这个游标用于执行SQL，并返回得到的结果

# execute SQL statement
cursor.execute("SELECT * FROM animals")
# get the resultset as a tuple
result = cursor.fetchall()


有很多种方法去获得这个SQL 结果，这里使用的是fetchall(),他会返回一个元祖集,它里面的每一个元祖表示一行数据，可以用for进行循环显示每一个数据。

# iterate through resultset
for record in result:
print record[0] , "-->", record[1]

也可以用fetchone()每次去获取一条数据，看下面的例子：


#!/usr/bin/python
# import MySQL module
import MySQLdb
# connect
db = MySQLdb.connect(host="localhost", user="joe", passwd="secret",
db="db56a")
# create a cursor
cursor = db.cursor()
# execute SQL statement
cursor.execute("SELECT * FROM animals")
# get the number of rows in the resultset
numrows = int(cursor.rowcount)
# get and display one row at a time
for x in range(0,numrows):
row = cursor.fetchone()
print row[0], "-->", row[1]


这里，我们先用游标的rowcount ()方法去获取结果集的条数。然后用在for循环中，去用fetchone（）方法去获取每行数据。
我们还可以用fetchmany()方法去指定获取的条数。



#!/usr/bin/python
# import MySQL module
import MySQLdb
# connect
db = MySQLdb.connect(host="localhost", user="joe", passwd="secret",
db="db56a")
# create a cursor
cursor = db.cursor()
# execute SQL statement
cursor.execute("SELECT * FROM animals")
# limit the resultset to 3 items
result = cursor.fetchmany(3)
# iterate through resultset
for record in result:
print record[0] , "-->", record[1]

很明显的，你可以执行插入，更新和删除通过 MySQLdb module

#!/usr/bin/python
# import MySQL module
import MySQLdb
# connect
db = MySQLdb.connect(host="localhost", user="joe", passwd="secret",
db="db56a")
# create a cursor
cursor = db.cursor()
# execute SQL statement
cursor.execute("""INSERT INTO animals (name, species) VALUES ("Harry",
"Hamster")""")

修改一下，我们让用户输入信息，保存到数据库


#!/usr/bin/python
# import MySQL module
import MySQLdb
# get user input
name = raw_input("Please enter a name: ")
species = raw_input("Please enter a species: ")
# connect
db = MySQLdb.connect(host="localhost", user="joe", passwd="secret",
db="db56a")
# create a cursor
cursor = db.cursor()
# execute SQL statement
cursor.execute("INSERT INTO animals (name, species) VALUES (%s, %s)",
(name, species))

这次运行的时候，你需要输入信息：


Please enter a name: Rollo
Please enter a species: Rat

注意%s位置会被 (name,species)元组的值替换。

如果你有自动增长的字段，你可以使用insert_id()去获取最后一条插入的数据的ID。


#!/usr/bin/python
# import MySQL module
import MySQLdb
# connect
db = MySQLdb.connect(host="localhost", user="joe", passwd="secret",
db="db56a")
# create a cursor
cursor = db.cursor()
# execute SQL statement
cursor.execute("""INSERT INTO test (field1, field2) VALUES ("val1",
"val2")""")
# get ID of last inserted record
print "ID of inserted record is ", int(cursor.insert_id())

许多数据库脚本涉及到多次的数据操作（比如插入），每次插入大量的不同的值，MySQLdb有一个executemany()方法，可以简化这种操作。

看下面的例子：

#!/usr/bin/python
# import SQL module
import MySQLdb
# connect
db = MySQLdb.connect(host="localhost", user="joe", passwd="secret",
db="db56a")
# create a cursor
cursor = db.cursor()
# dynamically generate SQL statements from  list
cursor.executemany("INSERT INTO animals (name, species) VALUES (%s,
%s)", [  ('Rollo', 'Rat'),  ('Dudley', 'Dolphin'),  ('Mark', 'Marmoset')
])

这里，同样的操作被执行了很多遍（不同的值），通过传递给executemany()一个Python list，每个元素是一个元组。

用这种方式，我们可以让用户一次输入大量的数据，然后一次性保存。

#!/usr/bin/python
# import MySQL module
import MySQLdb
# initialize some variables
name = ""
data = []
# loop and ask for user input
while (1):
name = raw_input("Please enter a name (EOF to end): ")
if name == "EOF":
break
species = raw_input("Please enter a species: ")
# put user input into a tuple
tuple = (name, species)
# and append to data[] list
data.append(tuple)
# connect
db = MySQLdb.connect(host="localhost", user="joe", passwd="secret",
db="db56a")
# create a cursor
cursor = db.cursor()
# dynamically generate SQL statements from data[] list
cursor.executemany("INSERT INTO animals (name, species) VALUES (%s,
%s)",
data)

这里我们用while 循环让用户输入信息，保存到values 列表，当用户输入完成的时候，执行executemany（）

MySQLdb 类还有很多其他有用的方法：

connection.begin() - 开始一个事务

connection.apilevel() - returns the current DB APIlevel

connection.conv() - set type conversion options between MySQL and Python

connection.commit() - commit a transaction

connection.rollback() - roll back a transaction

有用的链接：

The MySQLdb project page on SourceForge, athttp://sourceforge.net/projects/mysql-python

The Python home page, at http://www.python.org/

The MySQL home page, at http://www.mysql.com/

Note: All examples in this article have been tested on Linux/i586 with Python 1.5.2, MySQL 3.23 and MySQLdb 0.9.2. Examples are illustrative only, and are not meant for a production environment. Melonfire provides no warranties or support for the source code described in this article. YMMV!

本文链接

交叉表查询例子(Sql Server 2005)

2008-02-02T12:52:00Z

showModalDialog()、showModelessDialog()方法使用详解(转载)

2006-11-09T09:31:00Z

博客园_空地

ZendStudio 6.0.1 升级时 RSE 错误的问题

python mysql 数据库交互

交叉表查询例子(Sql Server 2005)

showModalDialog()、showModelessDialog()方法使用详解(转载)

表结构的复制方法

今天发现的东西

博客园_空地

ZendStudio 6.0.1 升级时 RSE 错误的问题

python mysql 数据库交互

交叉表 查询 例子(Sql Server 2005)

showModalDialog()、showModelessDialog()方法使用详解(转载)

表结构的复制方法

今天发现的东西

交叉表查询例子(Sql Server 2005)