Aggregating Rows into JSON Arrays of Objects
Using JSON_ARRAYAGG to Convert Data to JSON in MySQL
Write a MySQL query to aggregate multiple rows of product information into a single JSON array of objects using JSON_ARRAYAGG.
Solution:
Explanation:
- Purpose of the Query:
- To convert multiple rows of data into a structured JSON array of objects.
- Demonstrates how JSON_ARRAYAGG combined with JSON_OBJECT can format data for API responses.
- Key Components:
- JSON_OBJECT(...) : Constructs a JSON object for each row.
- JSON_ARRAYAGG(...) : Aggregates these objects into a single JSON array.
- Real-World Application:
- Ideal for creating JSON responses in web applications and APIs that require formatted data.
Notes:
- The approach streamlines the conversion of relational data into a JSON format.
- Ensure that the columns used in JSON_OBJECT exist and are of appropriate data types.
For more Practice: Solve these Related Problems:
- Write a MySQL query to aggregate rows into a JSON array of objects with nested JSON arrays for detailed attributes.
- Write a MySQL query to convert selected columns into a JSON array of objects and filter by a specific condition.
- Write a MySQL query to group data and then aggregate each group into a JSON array of objects using custom key names.
- Write a MySQL query to aggregate multiple rows into a JSON array of objects while excluding null values from the output.
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Previous MySQL Exercise: Append Data to a JSON Array Using JSON_ARRAY_APPEND.
Next MySQL Exercise: Query and Unquote JSON Data using JSON_UNQUOTE.
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