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    <pre><code>TAB2 ----------------- col1 king Queen ---------------- 1 Alex yash 2 Jhon Shakthi 3 Fred Maya </code></pre> <hr> <pre><code>insert into TAB1(col1,col2,col3,col4, col5) select 5, -- If you are tring to use an auto incremental value, I recommend you to use a trigger and Sequence on the table 'March', 'King7', king , col1 -- Col1 is used to get an Idea which row caused the Insert From TAB2 where Queen='yash'; TAB1 -------------------------------- col1 col2 col3 col4 col5 -------------------------------- 5 March King7 Alex 1 </code></pre> <hr> <pre><code>insert into TAB1(col1,col2,col3,col4, col5) select 5, 'March', 'King7', case when Queen='yash' then king else '' end, col1 From TAB2 ; -------------------------------- col1 col2 col3 col4 col5 -------------------------------- 5 March King7 Alex 1 5 March King7 '' 2 5 March King7 '' 3 </code></pre> <hr> <pre><code>---- removing insert to Col5 column insert into TAB1(col1,col2,col3,col4) select distinct 5, 'March', 'King7', case when Queen='yash' then king else '' end From TAB2 ; -------------------------- col1 col2 col3 col4 -------------------------- 5 March King7 Alex 5 March King7 '' </code></pre> <hr> <pre><code> insert into TAB1(col1,col2,col3,col4) select distinct 5, case when Queen='yash' then 'March' else '' end, case when Queen='yash' then 'King7' else '' end, case when Queen='yash' then king else '' end From TAB2 ; -------------------------- col1 col2 col3 col4 -------------------------- 5 March King7 Alex 5 '' '' '' </code></pre>
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    1. COI am considering first case. Thank you Yours is making sense.. Here column 'value1' is unique.. and `SELECT 'somevalue' , 'somevalue' , CASE WHEN queen ='yash' THEN king ELSE '' END FROM tab2;` this one returning the duplicate values.. for that I have used `distinct` .. But still somehow I am missing my requirment...As if `YASH` is there I am having two records from `SELECT 'somevalue' , 'somevalue' , CASE WHEN queen ='yash' THEN king ELSE '' END FROM tab2;` this statement. Here `Queen` column in TAB2 is unique...
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