问题描述
我正在使用python从Oracle DB中获取数据.所有行都有一个包含XML数据的列.当我打印使用python从Oracle DB获取的数据时，带有XML数据的列被打印为-cx_Oracle.OBJECT对象，位于0x7fffe373b960等.我什至将数据转换为pandas数据框，但该列的数据仍打印为cx_Oracle. OBJECT对象位于0x7fffe373b960.我想访问存储在此列中的键值数据(XML文件).
I am using python to fetch data from Oracle DB. All the rows have a column which has XML data. When I print the data fetched from Oracle DB using python, the column with XML data is printed as - cx_Oracle.OBJECT object at 0x7fffe373b960 etc. I even converted the data to pandas data frame and still the data for this columns is printed as cx_Oracle.OBJECT object at 0x7fffe373b960. I want to access the key value data stored in this column(XML files).
推荐答案
请阅读内联注释.
cursor = connection.cursor() # you know what it is for
# here getClobVal() returns whole xml. It won't work without alias I don't know why.
query = """select a.columnName.getClobVal() from tablename a"""
cursor.execute(query) #you know what it is for
result = cursor.fetchone()[0].read() # for single record
result = cursor.fetchall() # for all records
for res in result:
print res[0].read()
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