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@akehrer
Created January 9, 2018 19:58
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SQLite Results as JSON using the SQLite JSON1 extension
-- When SQLite is compiled with the JSON1 extensions it provides builtin tools
-- for manipulating JSON data stored in the database.
-- This is a gist showing SQLite return query data as a JSON object.
-- https://www.sqlite.org/json1.html
-- An example table with some data
CREATE TABLE users (
id INTEGER PRIMARY KEY NOT NULL,
full_name TEXT NOT NULL,
email TEXT NOT NULL,
created DATE NOT NULL
);
INSERT INTO users
VALUES
(1, "Bob McFett", "bmcfett@hunters.com", "32-01-01"),
(2, "Angus O'Vader", "angus.o@destroyers.com", "02-03-04"),
(3, "Imperator Colin", "c@c.c", "01-01-01");
-- Get query data as a JSON object using the
-- json_group_object() [1] and json_object() [2] functions.
SELECT
json_group_object(
email,
json_object('full_name', full_name, 'created', created)
) AS json_result
FROM (SELECT * FROM users WHERE created > "02-01-01");
-- 1 rows returned
-- json_result
-- {"bmcfett@hunters.com":{"full_name":"Bob McFett","created":"32-01-01"},"angus.o@destroyers.com":{"full_name":"Angus O'Vader","created":"02-03-04"}}
-- Get query data as a JSON object using the
-- json_group_array() function to maintain order.
SELECT
json_group_array(
json_object('full_name', full_name, 'created', created)
) AS json_result
FROM (SELECT * FROM users ORDER BY created);
-- 1 rows returned
-- json_result
-- [{"full_name":"Colin","created":"01-01-01"},{"full_name":"Angus O'Vader","created":"02-03-04"},{"full_name":"Bob McFett","created":"32-01-01"}]
-- Links
-- [1] https://www.sqlite.org/json1.html#jgroupobject
-- [2] https://www.sqlite.org/json1.html#jobj
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