You want to label feedback comments as 'positive' or 'negative' in a new column annotation. Which SQL command correctly adds this column to the feedback table?

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LangChain - LangSmith Observability

You want to label feedback comments as 'positive' or 'negative' in a new column annotation. Which SQL command correctly adds this column to the feedback table?

AINSERT COLUMN annotation INTO feedback;

BUPDATE feedback ADD annotation TEXT;

CCREATE COLUMN annotation TEXT IN feedback;

DALTER TABLE feedback ADD COLUMN annotation TEXT;

Step-by-Step Solution

Solution:

Step 1: Understand how to add a new column
To add a column, use ALTER TABLE with ADD COLUMN and specify the type.
Step 2: Check each option's correctness
ALTER TABLE feedback ADD COLUMN annotation TEXT; uses correct syntax. Others use invalid commands or order.
Final Answer:
ALTER TABLE feedback ADD COLUMN annotation TEXT; -> Option D
Quick Check:
ALTER TABLE + ADD COLUMN = ALTER TABLE feedback ADD COLUMN annotation TEXT; [OK]

Quick Trick: Use ALTER TABLE ADD COLUMN to add new columns [OK]

Common Mistakes:

MISTAKES

Using UPDATE instead of ALTER TABLE
Trying to CREATE COLUMN separately
Using INSERT COLUMN which is invalid

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You want to label feedback comments as 'positive' or 'negative' in a new column annotation. Which SQL command correctly adds this column to the feedback table?

Step 1: Understand how to add a new column

Step 2: Check each option's correctness

Final Answer:

Quick Check:

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