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Query This Berkeley DB on Linux
You are working as a system administrator and have been tasked with querying an existing Berkeley DB using Python. The database file can be downloaded from the following URL: *https://github.com/linuxacademy/content-intro-to-databases-on-linux/raw/master/demo.db* You are to open the file as read-only, to ensure no data is changed, and print the value associated with the key **2**.
Path Info
Table of Contents
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Challenge
Open the Database
You must first download the database file:
curl -O -L https://github.com/linuxacademy/content-intro-to-databases-on-linux/raw/master/demo.dbOnce downloaded, the database should be opened as read-only, to prevent any data from being changed:
import bsddb db = bsddb.btopen('demo.db', 'r') -
Challenge
Print a Value
Next you will print the name of the third student by querying the value associated with the key 2:
print ('The name of student 2 is ' + db['2']) -
Challenge
Close the Database
Lastly, you should close the database file and exit the Python interrupter:
db.close()Pressing Ctrl d will exit the interpreter.
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