BCP Output In JSON Line-Delimited Format

Kevin Feasel

2017-02-09

JSON

Jovan Popovic shows how to use FOR JSON PATH to output rows in a table to JSON line-delimited format:

Although this is not a valid JSON format, many system use it to exchange data.

One advantage of line-delimited JSON format compared to the standard JSON is the fact that you can append new JSON objects at the end of the file without removing closing array bracket as in the standard JSON.

This might be a niche use case, but I’m sure that in this post-XML-all-the-things era, this is more common than you might first expect.

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JSON Parsing Performance

Jovan Popovic has a couple posts showing JSON parsing performance in SQL Server 2017.  First up, he makes the statement that JSON parsing can be 10x faster than XML: I’m running 10000 iterations and getting the average spent time. Average time to parse JSON and get the value using JSON_VALUE() function is around 3 microseconds while the […]

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Multi-Structured Data In U-SQL

Kevin Feasel

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JSON, U-SQL

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