35 lines
1.1 KiB
Python
35 lines
1.1 KiB
Python
#------------------------------------------------------------------------------
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# connect_pool.py (Section 2.1)
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#------------------------------------------------------------------------------
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#------------------------------------------------------------------------------
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# Copyright (c) 2017, 2021, Oracle and/or its affiliates. All rights reserved.
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#------------------------------------------------------------------------------
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import cx_Oracle
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import threading
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import db_config
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pool = cx_Oracle.SessionPool(db_config.user, db_config.pw, db_config.dsn,
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min = 2, max = 5, increment = 1, threaded = True,
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getmode = cx_Oracle.SPOOL_ATTRVAL_WAIT)
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def Query():
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con = pool.acquire()
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cur = con.cursor()
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for i in range(4):
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cur.execute("select myseq.nextval from dual")
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seqval, = cur.fetchone()
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print("Thread", threading.current_thread().name, "fetched sequence =", seqval)
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thread1 = threading.Thread(name='#1', target=Query)
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thread1.start()
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thread2 = threading.Thread(name='#2', target=Query)
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thread2.start()
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thread1.join()
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thread2.join()
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print("All done!")
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