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Python is a popular general purpose dynamic scripting language. The python-oracledb driver provides Python APIs to access Oracle Database. It is an upgrade for the hugely popular cx_Oracle interface. If you are new to Python, review the Appendix: Python Primer to gain an understanding of the language.
- Cx Oracle
About cx_Oracle. cx_Oracle is a Python extension module that...
- Cx Oracle
30 wrz 2015 · There are three different ways of binding variables with cx_Oracle as one can see here : 1) by passing a tuple to a SQL statement with numbered variables : sql = "select * from sometable where somefield = :1 and otherfield = :2". cur.execute(sql, (aValue, anotherValue))
To update data in a table, you follow these steps: First, connect to the Oracle Database by creating a new Connection object. Second, create a Cursor object from the Connection object. Third, execute an UPDATE statement by calling the Cursor.execute() method.
import cx_Oracle import threading pool = cx_Oracle.SessionPool(db_config.user, db_config.pw, db_config.dsn + ":pooled", min = 2, max = 5, increment = 1, threaded = True, getmode = cx_Oracle.SPOOL_ATTRVAL_WAIT) def Query(): con = pool.acquire(cclass = "PYTHONHOL", purity = cx_Oracle.ATTR_PURITY_SELF) cur = conn.cursor() for i in range(4): cur ...
The IN bind variables allow you to pass data from Python to Oracle Database while the OUT bind variables allow you to get data back from the Oracle Database to Python. In the previous examples, you have passed in bind variables to the Oracle Database to query data and used a Cursor to fetch the result.
18 paź 2018 · This article covers how to execute Oracle PL/SQL functions and procedures with Python and cx_Oracle. If you’re not already familiar with PL/SQL, you can get some help from Steven Feuerstein and Bryn Llewellyn (see “ Additional Resources ”).
This tutorial shows you how to connect Python applications to Oracle Database using the python-oracledb interface. This interface lets you quickly develop applications that execute SQL or PL/SQL statements, allowing you to work with many data types including JSON.
