[Solved] Identify the error in this Python code snippet for inserting sensor data into SQLite on Raspberry Pi:import sqlite3 conn = sqlite3.connect('data.db') cursor = conn.cursor() cursor.... | Raspberry Pi

Raspberry Pi - Data Logging and Databases

Identify the error in this Python code snippet for inserting sensor data into SQLite on Raspberry Pi:

import sqlite3
conn = sqlite3.connect('data.db')
cursor = conn.cursor()
cursor.execute('INSERT INTO readings (value) VALUES 30')
conn.commit()
conn.close()

AThe VALUES keyword is missing parentheses around 30

BThe table name 'readings' is misspelled

CThe connection to the database is not established

DThe commit() method is called before execute()

Step-by-Step Solution

Solution:

Step 1: Check SQL syntax
The INSERT statement requires VALUES followed by parentheses enclosing the value(s).
Step 2: Identify the error
The code uses VALUES 30 without parentheses, which is invalid SQL syntax.
Final Answer:
VALUES 30 should be VALUES (30) -> Option A
Quick Check:
Correct SQL syntax for INSERT [OK]

Quick Trick: Always enclose VALUES in parentheses [OK]

Common Mistakes:

MISTAKES

Omitting parentheses around values in INSERT
Misspelling table names
Calling commit before execute

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Identify the error in this Python code snippet for inserting sensor data into SQLite on Raspberry Pi:

Step 1: Check SQL syntax

Step 2: Identify the error

Final Answer:

Quick Check:

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