vendredi 24 juin 2016
Mysql self join not giving accurate data
I have employee table like below.
emp_id emp_name emp_supv
4081 Nancy Brown NULL
4083 Peter Parker 4081
4055 Jacob Miller 4083
4058 Mary Ray 4083
4060 Jane Smith 4081
4061 Bob Hunter 4081
4066 Nancy Smith NULL
4061 Bob Smith 4066
I want LIKE query with key word Nancy and it should return result like below(parent record with name like Nancy and it's children records.).
4081 Nancy Brown NULL
4083 Peter Parker 4081
4060 Jane Smith 4081
4061 Bob Hunter 4081
4066 Nancy Smith NULL
4061 Bob Smith 4066
try with following query but it is return only child records not the parent record having emp_supv NULL
SELECT sa.id AS id,sa.name AS Name,
sa2.id AS child_id, sa2.name AS child_name
FROM employees AS sa LEFT OUTER JOIN employees AS sa2
ON sa.emp_supv = sa2.emp_id where sa2.emp_name LIKE '%Nancy%';
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