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274 plsql developer interview questions shared by candidates

There are two table. In one table I have values 1,1,1 and t2 table have 1,1,null. If I inner join what is the count? (How can we tell the count?we can tell the values it can return) 2)what is ref cursor 3) query to delete duplicates. I told him partition by query and his reply was this is very time consuming. Tell me something different. 4)components of cursor.
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Plsql Developer

Interviewed at 3i Infotech

3.4★
Oct 22, 2020

There are two table. In one table I have values 1,1,1 and t2 table have 1,1,null. If I inner join what is the count? (How can we tell the count?we can tell the values it can return) 2)what is ref cursor 3) query to delete duplicates. I told him partition by query and his reply was this is very time consuming. Tell me something different. 4)components of cursor.

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