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Editorial Team
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Asked: 2026-06-16T00:34:57+00:00

I have 2 tables Table 1 =================================== = Id = Name = email =

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I have 2 tables

Table 1

===================================
= Id = Name             =  email  =
===================================
= 1  = David            = d@d.com =
===================================

Table 2 

==================================
= uid = key        =  Value      =
==================================
= 1   = Age        =  18         =
= 1   = Tele       =  0123456798 =
==================================

The idea is that UID relates to Id to link the tables.

What i would like to do is run one SQL query to get the follow output.

=========================================================================
= Id = Name             =  email  = age        =  Tele                  =
=========================================================================
= 1  = David            = d@d.com = 18         = 012345678              =
=========================================================================

What is the query I need to run.

Thanks

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1 Answer

  1. Editorial Team

    Something like this:

    select 
  t.Id,
  t.Name, 
  t.Email,
  (select Value from Table2 t2 where t2.uid = t.Id and t2.Key = 'Age') as Age, 
  (select Value from Table2 t2 where t2.uid = t.Id and t2.Key = 'Tele') as Tele 

from Table1 t

    The above query works if you know the keys in advance.
    It names are unknown get the list of available key names from database:

    select distinct Key from Table2
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