Oracle SUBQUERY

Oracle SUBQUERY for beginners and professionals with examples on insert, select, update, delete, table, view, join, key, functions, procedures, indexes, cursor etc.

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ORACLE Subqueries

In Oracle, subqueries are the queries inside a query. Subqueries can be made using WHERE, FROM or SELECT clause.

Table 1: employee1

Table 2: employee2

Example 1

Query: Select name, city from employee1 where id in (select id from employee2 where designation='Shareholder')

Example 2

Query: Select e.id, e.city, e.name, e1.designation from employee1 e join employee2 e1 on (e.id = e1.id)

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