如何将解析的数据从Python导出到SQL Developer中的Oracle表？ [英] How to export parsed data from Python to an Oracle table in SQL Developer?

问题描述

我已经使用Python来解析txt文件以获取特定的信息（日期，金额，磅等），现在我想将数据导出到我在SQL Developer中创建的Oracle表。

I have used Python to parse a txt file for specific information (dates, $ amounts, lbs, etc) and now I want to export that data to an Oracle table that I made in SQL Developer.

我已经使用cx_Oracle模块成功地将Python与Oracle连接起来，但是我很难从Python导出甚至打印任何数据到我的数据库。

I have successfully connected Python to Oracle with the cx_Oracle module, but I am struggling to export or even print any data to my database from Python.

我不熟练使用SQL，我知道简单的查询，就是这样。我已经探索了Oracle文档，并没有找到直接的导出命令。通过Python将数据导出到Oracle表时，我将使用Python代码或SQL代码？例如，导入CSV文件是否相同？

I am not proficient at using SQL, I know of simple queries and that's about it. I have explored the Oracle docs and haven't found straightforward export commands. When exporting data to an Oracle table via Python is it Python code I am going to be using or SQL code? Is it the same as importing a CSV file, for example?

我想了解如何从Python写Oracle表;我需要解析和导出非常大量的数据，因此这不会是一次导出/导入。我也希望有一种方法来预览我的导入，以确保它与我已经创建的Oracle表正确对齐，或者如果存在足够的简单的撤消操作。

I would like to understand how to write to an Oracle table from Python; I need to parse and export a very large amount of data so this won't be a one time export/import. I would also ideally like to have a way to preview my import to ensure it aligns correctly with my already created Oracle table, or if a simple undo action exists that would suffice.

如果我的问题不清楚，我很乐意澄清。感谢所有帮助。

If my problem is unclear I am more than happy to clarify it. Thanks for all help.

我的代码到目前为止：

import cx_Oracle

dsnStr = cx_Oracle.makedsn("sole.wh.whoi.edu", "1526", "sole")

con = cx_Oracle.connect(user="myusername", password="mypassword", dsn=dsnStr)
print (con.version)

#imp 'Book1.csv' [this didn't work]

cursor = con.cursor()
print (cursor)

con.close()

推荐答案

从使用CX_Oracle& Python 2.7 你可以看到总体规划。
所以如果你已经将数据解析成csv，你可以轻松地做到：

From Import a CSV file into Oracle using CX_Oracle & Python 2.7 you can see overall plan. So if you already parsed data into csv you can easily do it like:

import cx_Oracle
import csv

dsnStr = cx_Oracle.makedsn("sole.wh.whoi.edu", "1526", "sole")

con = cx_Oracle.connect(user="myusername", password="mypassword",     dsn=dsnStr)
print (con.version)

#imp 'Book1.csv' [this didn't work]

cursor = con.cursor()
print (cursor)

text_sql = '''
INSERT INTO tablename (firstfield, secondfield) VALUES(:1,:2)
'''

my_file = 'C:\CSVData\Book1.csv'
cr = csv.reader(open(my_file,"rb"))
for row in cr:    
    print row
    cursor.execute(text_sql, row)
    print 'Imported'
con.close()

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