mysql - Combine two similar rows into one with new columns -

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original table:

name         age      contact_type   contact alex         20       sms            12345 alex         20       email          abc@gmail.com alex         20       sms            54321 bob          35       sms            23456

i want make as:

name          age     contact_type1   contact_1  contact_type2  contact_2       contact_type3 contact_3 alex          20           sms          12345        email     abc@gmail.com        sms          23456 bob           35           sms          23456

if name , age duplicated, combine 2(or more) rows 1 row new column shown above.

i want finding same 'name' , 'age', , using distinct contact case when count distinct(contact)>0 seems many syntax error occur. there smarter method make it?

use conditional aggregate this

select name,age,        max(case when contact = 'sms' contact end) contact_1,        max(case when contact = 'email' contact end) contact_2 yourtable group name, age

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