Query PostgreSQL database with select statement : PostgreSQL « Database « Python Tutorial

import psycopg
dbh = psycopg.connect('dbname=dbname user=user')
print "Connection successful."

cur = dbh.cursor()
cur.execute("SELECT * FROM myTable")
    
for column in cur.description:
    name, type_code, display_size, internal_size, precision, scale, null_ok = column
    
    print "Column name:", name
    print "Type code:", type_code
    print "Display size:", display_size
    print "Internal size:", internal_size
    print "Precision:", precision
    print "Scale:", scale
    print "Null OK:", null_ok
    print


dbh.close()

15.4.PostgreSQL
	15.4.1.	Query data
	15.4.2.	Basic connection to PostgreSQL with psycopg
	15.4.3.	Query PostgreSQL database with select statement
	15.4.4.	Create a table and insert data
	15.4.5.	executemany() for batch update
	15.4.6.	optimized execute() for multiple rows example
	15.4.7.	Fetch all rows after query
	15.4.8.	Adjust the connect() call below for your database
	15.4.9.	Fetch row one by one
	15.4.10.	Fetch row by using cursor
	15.4.11.	Parameter style
	15.4.12.	Get cursor
	15.4.13.	Using types to insert data
	15.4.14.	Commit example