---
title: "Two SQL queries on Self-join and Inner-Join"
description: "Self join vs Inner join learn here using the best examples. Read more."
url: https://srinimf.com/2016/09/08/2-simple-sql-queries-on-self-join-and-inner-join/
date: 2016-09-08
modified: 2026-10-10
author: "Srini"
categories: ["SQL"]
tags: ["2 best examples on Self join and Inner join"]
type: post
lang: en
---

# Two SQL queries on Self-join and Inner-Join

I have given two examples. Those are self and inner join.

## SQL Query on Inner Join

```
SELECT PROJNO,EMPNO,LASTNAME,DEPTNAME
FROM  (TEST.EMP E  JOIN       
TEST.DEPT  DON        
D.DEPTNO = E.WORKDEPT)  JOIN              
TEST.PROJ. P
ON        EMPNO = RESPEMP;
```

Related[Join Vs Sub-query Top Differences to Read Today](https://srinimf.com/2010/04/20/db2-join-vs-sub-query/)

The above is the best example for finding match in 3 tables using Inner join.

## SQL Query on Self-Join

```
SELECT A.DEPTNO,A.DEPTNAME,
A.ADMRDEPT,A.DEPTNAMEFROM TEST.DEPT A             
TEST.DEPT B
WHERE A.ADMRDEPT =A.DEPTNO;
```

The above SQL query is the best example for self join.

Related[7 Exclusive Ideas to Enhance DB2 Performance](https://srinimf.com/2023/10/05/db2-sql-performance/)

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