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CREATE TABLE test_tbl( user_id INT, field_id varchar(10), field_value varchar(30) ); insert into test_tbl values (1,'first_name','Jim'), (1,'last_name','Bob'), (1,'postcode','12345'), (2,'first_name','Joe'), (2,'last_name','Blogs'), (2,'postcode','67890');
select user_id, max(case when field_id = 'first_name' then field_value end) as first_name, max(case when field_id = 'last_name' then field_value end) as last_name, max(case when field_id = 'postcode' then field_value end) as postcode from test_tbl group by user_id;
user_id
first_name
last_name
postcode
1
Jim
Bob
12345
2
Joe
Blogs
67890