[Solved] What is wrong with this query?SELECT data->>details->>'color' FROM items; — Ans: Missing quotes around 'details' key | PostgreSQL

PostgreSQL - JSON and JSONB

What is wrong with this query?

SELECT data->>details->>'color' FROM items;

AMissing quotes around 'details' key

BUsing ->> before -> causes syntax error

CCannot chain arrow operators

DNo JSON column named 'data'

Step-by-Step Solution

Solution:

Step 1: Check key quoting in arrow operators
Keys must be in single quotes. Here, 'details' is unquoted, causing error.
Step 2: Confirm chaining is allowed
Chaining -> and ->> is valid if keys are quoted properly.
Final Answer:
Missing quotes around 'details' key -> Option A
Quick Check:
Always quote keys in arrow operators [OK]

Quick Trick: Always put keys in single quotes when using -> or ->> [OK]

Common Mistakes:

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What is wrong with this query?