Question 300 of 919
DP-300 Plan and implement data platform resources Practice Question
You need to create an Azure SQL Database that will be used by a new application. The database must support JSON data storage and querying. Which data type should you use to store JSON documents?
⚠ Common exam trap
Many candidates assume JSON requires a special data type like XML or a binary format, but Azure SQL Database stores JSON as plain text in NVARCHAR, leveraging the same string-based approach used for other semi-structured data.
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
NVARCHAR
B is correct because Azure SQL Database uses the NVARCHAR data type to store JSON documents as text. JSON is stored as a string in NVARCHAR columns, which supports Unicode characters and allows the use of built-in JSON functions like JSON_VALUE, JSON_QUERY, OPENJSON, and ISJSON for validation and querying. NVARCHAR(MAX) is recommended for large or variable-length JSON documents.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
TEXT
Why it's wrong here
TEXT data type is deprecated.
- ✓
NVARCHAR
Why this is correct
NVARCHAR supports JSON storage and querying.
- ✗
XML
Why it's wrong here
XML is for XML data, not JSON.
- ✗
VARCHAR
Why it's wrong here
VARCHAR does not support Unicode and is not recommended for JSON.
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Last reviewed: Jun 24, 2026
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