Question

SELECT JIVE_USER_ID,
       EMAIL_ID, 
       USER_ID 
FROM VIK_USER WHERE EMAIL_ID='[e-mail]';

Result is

JIVE_USER_ID    EMAIL_ID              USER_ID
11222            [e-mail]     User

Another query is

SELECT  VIK_USER_PROFILE.FIRST_NAME,
        VIK_USER_PROFILE.LAST_NAME,
        VIK_USER.EMAIL_ID 
FROM VIK_USER,VIK_USER_PROFILE 
WHERE VIK_USER_PROFILE.USER_ID=VIK_USER.USER_ID;

Result is

FIRST_NAME    LAST_NAME     EMAIL_ID
Ray            User        [e-mail]

I want to get the result using a single block statement.How can I join these two select statements into one.

Thank You.

Answer 1

select VIK_USER.JIVE_USER_ID,
       VIK_USER.EMAIL_ID, 
       VIK_USER.USER_ID,
       VIK_USER_PROFILE.FIRST_NAME,
       VIK_USER_PROFILE.LAST_NAME,
       VIK_USER.EMAIL_ID
from VIK_USER, VIK_USER_PROFILE
where VIK_USER_PROFILE.USER_ID=VIK_USER.USER_ID
and VIK_USER.EMAIL_ID='[e-mail]'

To elaborate, VIK_USER and VIK_USER_PROFILE are in an INNER JOIN (the comma is just a shortcut).

The join condition is VIK_USER_PROFILE.USER_ID=VIK_USER.USER_ID. JOINs have join conditions, usually on columns which share the same values across two tables.

Alternatively, the exact same query can be written as such:

select *
from VIK_USER
inner join VIK_USER_PROFILE on VIK_USER_PROFILE.USER_ID=VIK_USER.USER_ID
where VIK_USER.EMAIL_ID='[e-mail]';