Oracle Notes

Exploring Oracle

SELECT table_name FROM user_tables;
select * from all_users;
select * from all_users order by USERNAME;
select * from user_objects where object_type = 'TABLE';

select * from all_objects where object_type = 'TABLE' and OBJECT_NAME = 'BUG';

select * from all_objects where object_type = 'TABLE' and OBJECT_NAME = 'CUSTOMER';

select * from all_objects where object_type = 'TABLE' AND OWNER = 'XXX';

describe USER_TAB_COLUMNS;

describe all_objects;

select * from USER_TAB_COLUMNS;

select * from USER_TAB_COLUMNS;

SELECT owner, table_name FROM dba_tables;

SELECT owner, table_name FROM all_tables;
  
SELECT *  FROM all_tables;

select * from cols;

• http://cisnet.baruch.cuny.edu/holowczak/oracle/sqlplus/#SECTION00051000000000000000

cx_Oracle

>>> import cx_Oracle
>>> conn = cx_Oracle.connect('xxxx','xxxx','XX')
>>> curs = conn.cursor()
>>> curs.arraysize=50

>>> sql = 'SELECT * from DBUSER.BUG'

>>> curs.execute(sql)
<__builtin__.OracleCursor on <cx_Oracle.Connection to xxx@XX>>

>>> print curs.description
...

>>> print curs.fetchone()
...

>>> for x in curs:
	print x
...

>>> curs.execute('describe XXX.BUG')

cx_Oracle Working Notes

• http://cx-oracle.sourceforge.net/
• http://cx-oracle.sourceforge.net/html/index.html
• http://wiki.oracle.com/page/Python
• http://www.oracle.com/technology/pub/articles/devlin-python-oracle.html
• http://www.oracle.com/technology/pub/articles/tuininga-cx_oracle.html

Python DBI

• http://www.python.org/dev/peps/pep-0249/