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create table customerDetails (customerid int, name varchar(20), age int)
insert into customerDetails values (1, 'Mark', null)
insert into customerDetails values (2, 'Ann', null)
UPDATE customerDetails
SET age = 17
ORDER BY customerid DESC
LIMIT 1
select * from customerDetails
| customerid | name | age |
|---|---|---|
| 1 | Mark | null |
| 2 | Ann | 17 |