45 lines
1.5 KiB
Python
45 lines
1.5 KiB
Python
#------------------------------------------------------------------------------
|
|
# Copyright (c) 2020, 2021, Oracle and/or its affiliates. All rights reserved.
|
|
#------------------------------------------------------------------------------
|
|
|
|
#------------------------------------------------------------------------------
|
|
# dbms_output.py
|
|
# This script demonstrates one method of fetching the lines produced by
|
|
# the DBMS_OUTPUT package.
|
|
#------------------------------------------------------------------------------
|
|
|
|
import cx_Oracle as oracledb
|
|
import sample_env
|
|
|
|
connection = oracledb.connect(sample_env.get_main_connect_string())
|
|
cursor = connection.cursor()
|
|
|
|
# enable DBMS_OUTPUT
|
|
cursor.callproc("dbms_output.enable")
|
|
|
|
# execute some PL/SQL that generates output with DBMS_OUTPUT.PUT_LINE
|
|
cursor.execute("""
|
|
begin
|
|
dbms_output.put_line('This is the cx_Oracle manual');
|
|
dbms_output.put_line('');
|
|
dbms_output.put_line('Demonstrating use of DBMS_OUTPUT');
|
|
end;""")
|
|
|
|
# tune this size for your application
|
|
chunk_size = 10
|
|
|
|
# create variables to hold the output
|
|
lines_var = cursor.arrayvar(str, chunk_size)
|
|
num_lines_var = cursor.var(int)
|
|
num_lines_var.setvalue(0, chunk_size)
|
|
|
|
# fetch the text that was added by PL/SQL
|
|
while True:
|
|
cursor.callproc("dbms_output.get_lines", (lines_var, num_lines_var))
|
|
num_lines = num_lines_var.getvalue()
|
|
lines = lines_var.getvalue()[:num_lines]
|
|
for line in lines:
|
|
print(line or "")
|
|
if num_lines < chunk_size:
|
|
break
|