Context
In this example, you use the
sql method (SapDB_Session class). You execute a SELECT statement that returns an object of the
SapDB_ResultSet class as a result (result set) and read the data records of the result set in a
for loop.
Procedure
- Create a Python script
sample.py with the following contents:
# # Import Python modules # -------------------------------------------
import sys
import sdb.sql
# # Connect to the database # -------------------------------------------
database_user = sys.argv [1]
database_user_password = sys.argv [2]
database_name = sys.argv [3]
session = sdb.sql.connect (database_user, database_user_password, database_name)
select = """
SELECT * FROM hotel.room"""
# # Execute a SELECT statement # Result: An object of the SapDB_ResultSet class # -----------------------------------------------
cursor = session.sql (select)
# # You can use an object of the class SapDB_ResultSet in a for loop # in the same way as any other iterator. # -----------------------------------------------
for row in cursor:
hno, type, free, price = row
print "%6d %s %d %6d" % (hno, type, free, price)
# # You can use a for statement to # execute an SQL statement and to group the result rows # in columns. # -------------------------------------------------
for hno, type, free, price in session.sql (select):
print "%6d %s %d %6d" % (hno, type, free, price)
# # Close connection to the database # --------------------------------------------
session.release ()
- Call the Python script:
python sample.py MONA RED DEMODB
Results
10 double 45 200
10 single 20 135
20 double 13 100
20 single 10 70
30 double 15 80
30 single 12 45
[...]
