您可以使用Python脚本采取的护理出口，该CLOB的不会被截断：
from __future__ import print_function
from __future__ import division
import time
import cx_Oracle
def get_cursor():
'''
Get a cursor to the database
'''
# /questions/24149138/cx-oracle-doesnt-connect-when-using-sid-instead-of-service-name-on-connection-s
# /technetwork/articles/dsl/prez-python-queries-101587.html
ip = '' # E.g. '127.0.0.1'
port = '' # e.g. '3306'
sid = ''
dsnStr = cx_Oracle.makedsn(ip, port, sid)
username = '' # E.g. 'FRANCK'
password = '' # E.g. '123456'
db = cx_Oracle.connect(user=username, password=password, dsn=dsnStr)
cursor = db.cursor()
return cursor
def read_sql(filename):
'''
Read an SQL file and return it as a string
'''
file = open(filename, 'r')
return ' '.join(file.readlines()).replace(';', '')
def execute_sql_file(filename, cursor, verbose = False, display_query = False):
'''
Execute an SQL file and return the results
'''
sql = read_sql(filename)
if display_query: print(sql)
start = time.time()
if verbose: print('SQL query started... ', end='')
cursor.execute(sql)
if verbose:
end = time.time()
print('SQL query done. (took {0} seconds)'.format(end - start))
return cursor
def main():
'''
This is the main function
'''
# Demo:
cursor = get_cursor()
sql_filename = 'your_query.sql' # Write your query there
cursor = execute_sql_file(sql_filename, cursor, True)
result_filename = 'result.csv' # Will export your query result there
result_file = open(result_filename, 'w')
delimiter = ','
for row in cursor:
for count, column in enumerate(row):
if count > 0: result_file.write(delimiter)
result_file.write(str(column))
result_file.write('\n')
result_file.close()
if __name__ == "__main__":
main()
#cProfile.run('main()') # if you want to do some profiling
