[Solved] A query using jsonb_set() function returns an error. Which of these is the most probable cause? — Ans: The first argument is of type json instead of jsonb. | PostgreSQL

PostgreSQL - JSON and JSONB

A query using jsonb_set() function returns an error. Which of these is the most probable cause?

AThe path argument is missing brackets.

BThe first argument is of type <code>json</code> instead of <code>jsonb</code>.

CThe function does not exist in PostgreSQL.

DThe JSON data contains duplicate keys.

Step-by-Step Solution

Solution:

Step 1: Understand jsonb_set() requirements
This function requires the first argument to be jsonb type.
Step 2: Identify common error causes
If the first argument is json, the function call fails. Missing brackets or duplicates cause different errors.
Final Answer:
The first argument is of type json instead of jsonb. -> Option B
Quick Check:
jsonb_set requires jsonb input = A [OK]

Quick Trick: jsonb_set only accepts jsonb, not json [OK]

Common Mistakes:

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A query using jsonb_set() function returns an error. Which of these is the most probable cause?