JSON Functions That Create JSON Values

This document describes JSON functions that create JSON values.

JSON_ARRAY()

The JSON_ARRAY([val[, val] ...]) function evaluates a (possibly empty) list of values and returns a JSON array containing those values.

SELECT JSON_ARRAY(1,2,3,4,5), JSON_ARRAY("foo", "bar");
+-----------------------+--------------------------+ | JSON_ARRAY(1,2,3,4,5) | JSON_ARRAY("foo", "bar") | +-----------------------+--------------------------+ | [1, 2, 3, 4, 5] | ["foo", "bar"] | +-----------------------+--------------------------+ 1 row in set (0.00 sec)

JSON_OBJECT()

The JSON_OBJECT([key, val[, key, val] ...]) function evaluates a (possibly empty) list of key-value pairs and returns a JSON object containing those pairs.

SELECT JSON_OBJECT("database", "TiDB", "distributed", TRUE);
+------------------------------------------------------+ | JSON_OBJECT("database", "TiDB", "distributed", TRUE) | +------------------------------------------------------+ | {"database": "TiDB", "distributed": true} | +------------------------------------------------------+ 1 row in set (0.00 sec)

JSON_QUOTE()

The JSON_QUOTE(str) function returns a string as a JSON value with quotes.

SELECT JSON_QUOTE('The name is "O\'Neil"');
+-------------------------------------+ | JSON_QUOTE('The name is "O\'Neil"') | +-------------------------------------+ | "The name is \"O'Neil\"" | +-------------------------------------+ 1 row in set (0.00 sec)

See also

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