Python programming | Select or get data from table using python | Extract data from table | Part - 2 скачать в хорошем качестве

Python programming | Select or get data from table using python | Extract data from table | Part - 2

This is the sixth video of Database programming with Python video tutorial series. In this video, we will see how to connect to the Oracle database using the cx_oracle package and fetch one record or data at a time from the table using the fetchone method. The table has been created in the second video of the tutorial series. fetchone() will return a single record that will be available with the cursor, basically, all the data that the select statement would have fetched will be stored with the cursor, and you can use the fetchone method to one by one get all the data. If no data is available in the cursor and fetchone() is executed, it will return None, meaning no more data is available with the cursor. fetchone method returns a tuple, each row will be available as a tuple, upon execution. Steps performed: ================ Create Connection Create Cursor Prepare select statement Execute select statement with execute() Fetch first record using the fetchone() Fetch next record using the fetchone() close the cursor close the connection The cx_Oracle is a Python extension module that enables access to Oracle Database. It conforms to the Python database API 2.0 specification with a considerable number of additions and a couple of exclusions. cx_Oracle 7 has been tested with Python version 2.7, and with versions 3.5 through 3.8. You can use cx_Oracle with Oracle 11.2, 12, 18 and 19 client libraries. Oracle's standard client-server version interoperability allows connection to both older and newer databases. For example, Oracle 19c client libraries can connect to Oracle Database 11.2. Links to all videos related to Database programming with Python ================================================================= 1. Install cx_Oracle :    • Python | How to Install python packages   2. Create connection and create table :    • Python Programming | Connect to an Oracle ...   3. Insert record into the table with execute() :    • Python programming | Insert data into data...   4. Insert multiple records into the table with executemany() :    • Python programming | How to insert multipl...   5. Retrive all the data from the table using the fetchall() :    • Python programming | Select or get data fr...   6. Retrive one record from the table using the fetchone() :    • Python programming | Select or get data fr...   7. Retrive specific number of records from the table using the fetchmany() :    • How to read data from table in python | ex...   8. Use Bind Variables in the select statement to avoid complicating the query with concatenation operation :    • Python programming | Executing SQL queries...   9. use callproc method to execute oracle procedure with parameters :    • Python programming | How to execute Oracle...   10. use callfunc method to execute oracle function with parameters :    • How to execute Oracle Function from Python...   Tools used in creating and executing the scripts: ================================================== VSCode - Visual Studio Code SQL Developer Links used while creating the content: ======================================= https://en.wikipedia.org/wiki/Pip_(pa...) https://oracle.github.io/python-cx_Or... https://github.com/oracle/python-cx_O... Subscribe to the channel :    / @kishanmashru   Other Playlists: Data Warehousing Concepts:    • Data Warehousing Concepts   Python and Database:    • Python | How to Install python packages   SQL and PL/SQL Interview Questions:    • SQL AND PL/SQL INTERVIEW QUESTIONS   SQL and PL/SQL concepts:    • SQL and PLSQL   Content and video created by : Kishan Mashru