Oracle EQUI JOIN

Oracle Equi join returns the matching column values of the associated tables. It uses a comparison operator in the WHERE clause to refer equality.

Syntax

SELECT column_list 
FROM table1, table2....
WHERE table1.column_name =
table2.column_name;

Equijoin also can be performed by using JOIN keyword followed by ON keyword and then specifying names of the columns along with their associated tables to check equality.

Syntax

SELECT *
FROM table1 
JOIN table2
[ON (join_condition)] 

Oracle EQUI JOIN Example

Let' take two tables "agents" and "customer".

Agents table

Agent data

Customer table

Customer data

Execute this query

SELECT agents.agent_city,customer.last_name,  
customer.first_name 
FROM agents,customer  
WHERE agents.agent_id=customer.customer_id;  

Output

Next TopicOracle SELF JOIN

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