SQL - Stored Procedures and Functions
A stored procedure is supposed to update a user's email but it does not change the data. Which of the following is the most likely error?
A stored procedure is supposed to update a user's email but it does not change the data. Which of the following is the most likely error?
medium📝 Debug Q7 of 15
Step-by-Step Solution
Solution:
Step 1: Understand update behavior
Without a WHERE clause, UPDATE affects all rows or none if condition is missing.Step 2: Identify why no change occurs
Missing WHERE means no specific user is targeted, so no row is updated.Final Answer:
The procedure is missing the WHERE clause to specify the user -> Option AQuick Check:
Missing WHERE causes no targeted update [OK]
Quick Trick: Always include WHERE to target specific rows in UPDATE [OK]
Common Mistakes:
- Assuming COMMIT is always needed inside procedures
- Confusing SELECT with UPDATE statements
- Using DELETE instead of UPDATE by mistake
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