Python使用cx_Oracle模块将oracle中数据导出到csv文件的方法

# Export Oracle database tables to CSV files# FB36 - 201007117import sysimport csvimport cx_Oracleconnection = raw_input("Enter Oracle DB connection (uid/pwd@database) : ")orcl = cx_Oracle.connect(connection)curs = orcl.cursor()printHeader = True # include column headers in each table outputsql = "select * from tab" # get a list of all tablescurs.execute(sql)for row_data in curs:  if not row_data[0].startswith('BIN$'): # skip recycle bin tables    tableName = row_data[0]    # output each table content to a separate CSV file    csv_file_dest = tableName + ".csv"    outputFile = open(csv_file_dest,'w') # 'wb'    output = csv.writer(outputFile, dialect='excel')    sql = "select * from " + tableName    curs2 = orcl.cursor()    curs2.execute(sql)    if printHeader: # add column headers if requested      cols = []      for col in curs2.description:        cols.append(col[0])      output.writerow(cols)    for row_data in curs2: # add table rows      output.writerow(row_data)    outputFile.close()