Hi Inanc
Your Plan Viz shows 3 dominant operators with 45, 32 and 0.62 mili seconds and then overall run time is 333 seconds ( slightly more than 5 mins ) .. I am confused here. Where the time being spent then ?
Not sure why you want "SELECT COUNT ( * )" .. Can you try below theree options?
1. SELECT * from TWITTER_ALL_DATA WHERE USERNAME IN ( SELECT DISTINCT USERNAME FROM CUSTOMER_SOCIAL_MEDIA )
---- you can replace * with the fields required from TWITTER_ALL_DATA
2. SELECT T1.Field1, T1. Field2 , T2.Field3, T3.Field4 from CUSTOMER_SOCIAL_MEDIA INNER JOIN
TWITTER_ALL_DATA T2 ON T1. USERNAME = T2.USERNAME
3.
SELECT COUNT(*) FROM ( SELECT T1.Field1, T1. Field2 , T2.Field3, T3.Field4 from CUSTOMER_SOCIAL_MEDIA INNER JOIN
TWITTER_ALL_DATA T2 ON T1. USERNAME = T2.USERNAME )
Regards
Anindya
