February 2018
Intermediate to advanced
510 pages
16h 10m
English
Content preview from MySQL 8 Administrator???s Guide
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JSON
JSON support had been implemented in MySQL 5.7; it was well-acknowledged feature. In MySQL 8 it has added various functions that would allow us to get dataset results in JSON data format, virtual columns, and tentatively 15 SQL functions that allow you to search and use JSON data on server side. In MySQL8 there are additional aggregation functions added that can be used in JSON objects/arrays to represent loaded data in a further optimized way. The following are the two JSON aggregation functions that were introduced in MySQL8:
- JSON_OBJECTAGG()
- JSON_ARRAYAGG()
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