MySQL JSON array operation JSON_ array_ append、json_ array_ insert

 

json_array_append、json_array_insert As the name suggests, it is to append and insert values into the array , Because there is no suitable example , So let's use an official example

Data sheet

json_array_append

Append a value to the specified location

Patients with a

select json_array_append(info, '$', 1) from member;

Particular attention ：'$' refer to info Field itself , You can also specify which item

Example 2

select json_array_append(info, '$[1]', 2) from member;

Particular attention ： Subscript cannot be negative , Will report a mistake , No more than the original json Number , Will be ignored

Example 3

select json_array_append(info, '$[-1]', 2) from member;

Example 4

select json_array_append(info, '$[100]', 2) from member;

json_array_insert

Inserts a value before the specified position

Patients with a

select json_array_insert(info, '$[1]', 100) from member;