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On this page
  • Description
  • Sample Source Patterns
  • Basic Inner Join
  • Inner Join with using clause
  • Cross Inner Join
  • Natural Inner Join
  • Cross Natural Join
  • Natural Cross Join
  • Known issues
  1. Translation Reference
  2. Oracle
  3. SQL Queries and Subqueries
  4. Joins

Inner Join

PreviousCartesian ProductsNextOuter Join

Last updated 1 year ago

Some parts in the output code are omitted for clarity reasons.

Description

An inner join (sometimes called a simple join) is a join of two or more tables that returns only those rows that satisfy the join condition. ().

{ [ INNER ] JOIN table_reference
 { ON condition
 | USING (column [, column ]...)
 }
| { CROSS
 | NATURAL [ INNER ]
 }
 JOIN table_reference
}

Sample Source Patterns

Order by clause added because the result order may vary between Oracle and Snowflake.

Since the result set is too large, Row Limiting Clause was added. You can remove this clause to retrieve the entire result set.

Check this to set up the sample database.

Basic Inner Join

In the Inner Join clause "INNER" is an optional keyword, the following queries have two selects that retrieve the same data set.

Oracle

IN -> Oracle_01.sql
SELECT 
    *
FROM 
    hr.employees
INNER JOIN hr.departments ON
    hr.departments.department_id = hr.employees.department_id
ORDER BY employee_id
FETCH NEXT 10 ROWS ONLY;

SELECT 
    *
FROM 
    hr.employees
JOIN hr.departments ON
    hr.departments.department_id = hr.employees.department_id
ORDER BY employee_id
FETCH NEXT 10 ROWS ONLY;
|EMPLOYEE_ID|FIRST_NAME|LAST_NAME|EMAIL   |PHONE_NUMBER|HIRE_DATE              |JOB_ID    |SALARY|COMMISSION_PCT|MANAGER_ID|DEPARTMENT_ID|DEPARTMENT_ID|DEPARTMENT_NAME|MANAGER_ID|LOCATION_ID|
|-----------|----------|---------|--------|------------|-----------------------|----------|------|--------------|----------|-------------|-------------|---------------|----------|-----------|
|100        |Steven    |King     |SKING   |515.123.4567|2003-06-17 00:00:00.000|AD_PRES   |24000 |              |          |90           |90           |Executive      |100       |1700       |
|101        |Neena     |Kochhar  |NKOCHHAR|515.123.4568|2005-09-21 00:00:00.000|AD_VP     |17000 |              |100       |90           |90           |Executive      |100       |1700       |
|102        |Lex       |De Haan  |LDEHAAN |515.123.4569|2001-01-13 00:00:00.000|AD_VP     |17000 |              |100       |90           |90           |Executive      |100       |1700       |
|103        |Alexander |Hunold   |AHUNOLD |590.423.4567|2006-01-03 00:00:00.000|IT_PROG   |9000  |              |102       |60           |60           |IT             |103       |1400       |
|104        |Bruce     |Ernst    |BERNST  |590.423.4568|2007-05-21 00:00:00.000|IT_PROG   |6000  |              |103       |60           |60           |IT             |103       |1400       |
|105        |David     |Austin   |DAUSTIN |590.423.4569|2005-06-25 00:00:00.000|IT_PROG   |4800  |              |103       |60           |60           |IT             |103       |1400       |
|106        |Valli     |Pataballa|VPATABAL|590.423.4560|2006-02-05 00:00:00.000|IT_PROG   |4800  |              |103       |60           |60           |IT             |103       |1400       |
|107        |Diana     |Lorentz  |DLORENTZ|590.423.5567|2007-02-07 00:00:00.000|IT_PROG   |4200  |              |103       |60           |60           |IT             |103       |1400       |
|108        |Nancy     |Greenberg|NGREENBE|515.124.4569|2002-08-17 00:00:00.000|FI_MGR    |12008 |              |101       |100          |100          |Finance        |108       |1700       |
|109        |Daniel    |Faviet   |DFAVIET |515.124.4169|2002-08-16 00:00:00.000|FI_ACCOUNT|9000  |              |108       |100          |100          |Finance        |108       |1700       |

Snowflake

OUT -> Oracle_01.sql
SELECT
    *
FROM
hr.employees
INNER JOIN
    hr.departments
    ON
    hr.departments.department_id = hr.employees.department_id
ORDER BY employee_id
FETCH NEXT 10 ROWS ONLY;

SELECT
    *
FROM
    hr.employees
JOIN
    hr.departments
    ON
    hr.departments.department_id = hr.employees.department_id
ORDER BY employee_id
FETCH NEXT 10 ROWS ONLY;
|EMPLOYEE_ID|FIRST_NAME|LAST_NAME|EMAIL   |PHONE_NUMBER|HIRE_DATE |JOB_ID    |SALARY  |COMMISSION_PCT|MANAGER_ID|DEPARTMENT_ID|DEPARTMENT_ID|DEPARTMENT_NAME|MANAGER_ID|LOCATION_ID|
|-----------|----------|---------|--------|------------|----------|----------|--------|--------------|----------|-------------|-------------|---------------|----------|-----------|
|100        |Steven    |King     |SKING   |515.123.4567|2003-06-17|AD_PRES   |24000.00|              |          |90           |90           |Executive      |100       |1700       |
|101        |Neena     |Kochhar  |NKOCHHAR|515.123.4568|2005-09-21|AD_VP     |17000.00|              |100       |90           |90           |Executive      |100       |1700       |
|102        |Lex       |De Haan  |LDEHAAN |515.123.4569|2001-01-13|AD_VP     |17000.00|              |100       |90           |90           |Executive      |100       |1700       |
|103        |Alexander |Hunold   |AHUNOLD |590.423.4567|2006-01-03|IT_PROG   |9000.00 |              |102       |60           |60           |IT             |103       |1400       |
|104        |Bruce     |Ernst    |BERNST  |590.423.4568|2007-05-21|IT_PROG   |6000.00 |              |103       |60           |60           |IT             |103       |1400       |
|105        |David     |Austin   |DAUSTIN |590.423.4569|2005-06-25|IT_PROG   |4800.00 |              |103       |60           |60           |IT             |103       |1400       |
|106        |Valli     |Pataballa|VPATABAL|590.423.4560|2006-02-05|IT_PROG   |4800.00 |              |103       |60           |60           |IT             |103       |1400       |
|107        |Diana     |Lorentz  |DLORENTZ|590.423.5567|2007-02-07|IT_PROG   |4200.00 |              |103       |60           |60           |IT             |103       |1400       |
|108        |Nancy     |Greenberg|NGREENBE|515.124.4569|2002-08-17|FI_MGR    |12008.00|              |101       |100          |100          |Finance        |108       |1700       |
|109        |Daniel    |Faviet   |DFAVIET |515.124.4169|2002-08-16|FI_ACCOUNT|9000.00 |              |108       |100          |100          |Finance        |108       |1700       |

Inner Join with using clause

Oracle

IN -> Oracle_02.sql
SELECT 
    *
FROM 
    hr.employees
INNER JOIN hr.departments
    USING(department_id)
ORDER BY employee_id
FETCH NEXT 10 ROWS ONLY;
|DEPARTMENT_ID|EMPLOYEE_ID|FIRST_NAME|LAST_NAME|EMAIL   |PHONE_NUMBER|HIRE_DATE              |JOB_ID    |SALARY|COMMISSION_PCT|MANAGER_ID|DEPARTMENT_NAME|MANAGER_ID|LOCATION_ID|
|-------------|-----------|----------|---------|--------|------------|-----------------------|----------|------|--------------|----------|---------------|----------|-----------|
|90           |100        |Steven    |King     |SKING   |515.123.4567|2003-06-17 00:00:00.000|AD_PRES   |24000 |              |          |Executive      |100       |1700       |
|90           |101        |Neena     |Kochhar  |NKOCHHAR|515.123.4568|2005-09-21 00:00:00.000|AD_VP     |17000 |              |100       |Executive      |100       |1700       |
|90           |102        |Lex       |De Haan  |LDEHAAN |515.123.4569|2001-01-13 00:00:00.000|AD_VP     |17000 |              |100       |Executive      |100       |1700       |
|60           |103        |Alexander |Hunold   |AHUNOLD |590.423.4567|2006-01-03 00:00:00.000|IT_PROG   |9000  |              |102       |IT             |103       |1400       |
|60           |104        |Bruce     |Ernst    |BERNST  |590.423.4568|2007-05-21 00:00:00.000|IT_PROG   |6000  |              |103       |IT             |103       |1400       |
|60           |105        |David     |Austin   |DAUSTIN |590.423.4569|2005-06-25 00:00:00.000|IT_PROG   |4800  |              |103       |IT             |103       |1400       |
|60           |106        |Valli     |Pataballa|VPATABAL|590.423.4560|2006-02-05 00:00:00.000|IT_PROG   |4800  |              |103       |IT             |103       |1400       |
|60           |107        |Diana     |Lorentz  |DLORENTZ|590.423.5567|2007-02-07 00:00:00.000|IT_PROG   |4200  |              |103       |IT             |103       |1400       |
|100          |108        |Nancy     |Greenberg|NGREENBE|515.124.4569|2002-08-17 00:00:00.000|FI_MGR    |12008 |              |101       |Finance        |108       |1700       |
|100          |109        |Daniel    |Faviet   |DFAVIET |515.124.4169|2002-08-16 00:00:00.000|FI_ACCOUNT|9000  |              |108       |Finance        |108       |1700       |

Snowflake

OUT -> Oracle_02.sql
SELECT
    *
FROM
hr.employees
INNER JOIN
    hr.departments
    USING(department_id)
ORDER BY employee_id
FETCH NEXT 10 ROWS ONLY;
|DEPARTMENT_ID|EMPLOYEE_ID|FIRST_NAME|LAST_NAME|EMAIL   |PHONE_NUMBER|HIRE_DATE |JOB_ID    |SALARY  |COMMISSION_PCT|MANAGER_ID|DEPARTMENT_NAME|MANAGER_ID|LOCATION_ID|
|-------------|-----------|----------|---------|--------|------------|----------|----------|--------|--------------|----------|---------------|----------|-----------|
|90           |100        |Steven    |King     |SKING   |515.123.4567|2003-06-17|AD_PRES   |24000.00|              |          |Executive      |100       |1700       |
|90           |101        |Neena     |Kochhar  |NKOCHHAR|515.123.4568|2005-09-21|AD_VP     |17000.00|              |100       |Executive      |100       |1700       |
|90           |102        |Lex       |De Haan  |LDEHAAN |515.123.4569|2001-01-13|AD_VP     |17000.00|              |100       |Executive      |100       |1700       |
|60           |103        |Alexander |Hunold   |AHUNOLD |590.423.4567|2006-01-03|IT_PROG   |9000.00 |              |102       |IT             |103       |1400       |
|60           |104        |Bruce     |Ernst    |BERNST  |590.423.4568|2007-05-21|IT_PROG   |6000.00 |              |103       |IT             |103       |1400       |
|60           |105        |David     |Austin   |DAUSTIN |590.423.4569|2005-06-25|IT_PROG   |4800.00 |              |103       |IT             |103       |1400       |
|60           |106        |Valli     |Pataballa|VPATABAL|590.423.4560|2006-02-05|IT_PROG   |4800.00 |              |103       |IT             |103       |1400       |
|60           |107        |Diana     |Lorentz  |DLORENTZ|590.423.5567|2007-02-07|IT_PROG   |4200.00 |              |103       |IT             |103       |1400       |
|100          |108        |Nancy     |Greenberg|NGREENBE|515.124.4569|2002-08-17|FI_MGR    |12008.00|              |101       |Finance        |108       |1700       |
|100          |109        |Daniel    |Faviet   |DFAVIET |515.124.4169|2002-08-16|FI_ACCOUNT|9000.00 |              |108       |Finance        |108       |1700       |

Cross Inner Join

Oracle

IN -> Oracle_03.sql
SELECT 
    *
FROM 
    hr.employees
CROSS JOIN hr.departments
ORDER BY department_name, employee_id
FETCH NEXT 10 ROWS ONLY;
|EMPLOYEE_ID|FIRST_NAME|LAST_NAME|EMAIL   |PHONE_NUMBER|HIRE_DATE              |JOB_ID    |SALARY|COMMISSION_PCT|MANAGER_ID|DEPARTMENT_ID|DEPARTMENT_ID|DEPARTMENT_NAME|MANAGER_ID|LOCATION_ID|
|-----------|----------|---------|--------|------------|-----------------------|----------|------|--------------|----------|-------------|-------------|---------------|----------|-----------|
|100        |Steven    |King     |SKING   |515.123.4567|2003-06-17 00:00:00.000|AD_PRES   |24000 |              |          |90           |110          |Accounting     |205       |1700       |
|101        |Neena     |Kochhar  |NKOCHHAR|515.123.4568|2005-09-21 00:00:00.000|AD_VP     |17000 |              |100       |90           |110          |Accounting     |205       |1700       |
|102        |Lex       |De Haan  |LDEHAAN |515.123.4569|2001-01-13 00:00:00.000|AD_VP     |17000 |              |100       |90           |110          |Accounting     |205       |1700       |
|103        |Alexander |Hunold   |AHUNOLD |590.423.4567|2006-01-03 00:00:00.000|IT_PROG   |9000  |              |102       |60           |110          |Accounting     |205       |1700       |
|104        |Bruce     |Ernst    |BERNST  |590.423.4568|2007-05-21 00:00:00.000|IT_PROG   |6000  |              |103       |60           |110          |Accounting     |205       |1700       |
|105        |David     |Austin   |DAUSTIN |590.423.4569|2005-06-25 00:00:00.000|IT_PROG   |4800  |              |103       |60           |110          |Accounting     |205       |1700       |
|106        |Valli     |Pataballa|VPATABAL|590.423.4560|2006-02-05 00:00:00.000|IT_PROG   |4800  |              |103       |60           |110          |Accounting     |205       |1700       |
|107        |Diana     |Lorentz  |DLORENTZ|590.423.5567|2007-02-07 00:00:00.000|IT_PROG   |4200  |              |103       |60           |110          |Accounting     |205       |1700       |
|108        |Nancy     |Greenberg|NGREENBE|515.124.4569|2002-08-17 00:00:00.000|FI_MGR    |12008 |              |101       |100          |110          |Accounting     |205       |1700       |
|109        |Daniel    |Faviet   |DFAVIET |515.124.4169|2002-08-16 00:00:00.000|FI_ACCOUNT|9000  |              |108       |100          |110          |Accounting     |205       |1700       |

Snowflake

OUT -> Oracle_03.sql
SELECT
    *
FROM
hr.employees
CROSS JOIN hr.departments
ORDER BY department_name, employee_id
FETCH NEXT 10 ROWS ONLY;
|EMPLOYEE_ID|FIRST_NAME|LAST_NAME|EMAIL   |PHONE_NUMBER|HIRE_DATE |JOB_ID    |SALARY  |COMMISSION_PCT|MANAGER_ID|DEPARTMENT_ID|DEPARTMENT_ID|DEPARTMENT_NAME|MANAGER_ID|LOCATION_ID|
|-----------|----------|---------|--------|------------|----------|----------|--------|--------------|----------|-------------|-------------|---------------|----------|-----------|
|100        |Steven    |King     |SKING   |515.123.4567|2003-06-17|AD_PRES   |24000.00|              |          |90           |110          |Accounting     |205       |1700       |
|101        |Neena     |Kochhar  |NKOCHHAR|515.123.4568|2005-09-21|AD_VP     |17000.00|              |100       |90           |110          |Accounting     |205       |1700       |
|102        |Lex       |De Haan  |LDEHAAN |515.123.4569|2001-01-13|AD_VP     |17000.00|              |100       |90           |110          |Accounting     |205       |1700       |
|103        |Alexander |Hunold   |AHUNOLD |590.423.4567|2006-01-03|IT_PROG   |9000.00 |              |102       |60           |110          |Accounting     |205       |1700       |
|104        |Bruce     |Ernst    |BERNST  |590.423.4568|2007-05-21|IT_PROG   |6000.00 |              |103       |60           |110          |Accounting     |205       |1700       |
|105        |David     |Austin   |DAUSTIN |590.423.4569|2005-06-25|IT_PROG   |4800.00 |              |103       |60           |110          |Accounting     |205       |1700       |
|106        |Valli     |Pataballa|VPATABAL|590.423.4560|2006-02-05|IT_PROG   |4800.00 |              |103       |60           |110          |Accounting     |205       |1700       |
|107        |Diana     |Lorentz  |DLORENTZ|590.423.5567|2007-02-07|IT_PROG   |4200.00 |              |103       |60           |110          |Accounting     |205       |1700       |
|108        |Nancy     |Greenberg|NGREENBE|515.124.4569|2002-08-17|FI_MGR    |12008.00|              |101       |100          |110          |Accounting     |205       |1700       |
|109        |Daniel    |Faviet   |DFAVIET |515.124.4169|2002-08-16|FI_ACCOUNT|9000.00 |              |108       |100          |110          |Accounting     |205       |1700       |

Natural Inner Join

Oracle

IN -> Oracle_04.sql
SELECT 
    *
FROM 
    hr.employees
NATURAL JOIN hr.departments
ORDER BY employee_id
FETCH NEXT 10 ROWS ONLY;
|MANAGER_ID|DEPARTMENT_ID|EMPLOYEE_ID|FIRST_NAME |LAST_NAME|EMAIL   |PHONE_NUMBER|HIRE_DATE              |JOB_ID    |SALARY|COMMISSION_PCT|DEPARTMENT_NAME|LOCATION_ID|
|----------|-------------|-----------|-----------|---------|--------|------------|-----------------------|----------|------|--------------|---------------|-----------|
|100       |90           |101        |Neena      |Kochhar  |NKOCHHAR|515.123.4568|2005-09-21 00:00:00.000|AD_VP     |17000 |              |Executive      |1700       |
|100       |90           |102        |Lex        |De Haan  |LDEHAAN |515.123.4569|2001-01-13 00:00:00.000|AD_VP     |17000 |              |Executive      |1700       |
|103       |60           |104        |Bruce      |Ernst    |BERNST  |590.423.4568|2007-05-21 00:00:00.000|IT_PROG   |6000  |              |IT             |1400       |
|103       |60           |105        |David      |Austin   |DAUSTIN |590.423.4569|2005-06-25 00:00:00.000|IT_PROG   |4800  |              |IT             |1400       |
|103       |60           |106        |Valli      |Pataballa|VPATABAL|590.423.4560|2006-02-05 00:00:00.000|IT_PROG   |4800  |              |IT             |1400       |
|103       |60           |107        |Diana      |Lorentz  |DLORENTZ|590.423.5567|2007-02-07 00:00:00.000|IT_PROG   |4200  |              |IT             |1400       |
|108       |100          |109        |Daniel     |Faviet   |DFAVIET |515.124.4169|2002-08-16 00:00:00.000|FI_ACCOUNT|9000  |              |Finance        |1700       |
|108       |100          |110        |John       |Chen     |JCHEN   |515.124.4269|2005-09-28 00:00:00.000|FI_ACCOUNT|8200  |              |Finance        |1700       |
|108       |100          |111        |Ismael     |Sciarra  |ISCIARRA|515.124.4369|2005-09-30 00:00:00.000|FI_ACCOUNT|7700  |              |Finance        |1700       |
|108       |100          |112        |Jose Manuel|Urman    |JMURMAN |515.124.4469|2006-03-07 00:00:00.000|FI_ACCOUNT|7800  |              |Finance        |1700       |

Snowflake

OUT -> Oracle_04.sql
SELECT
    *
FROM
hr.employees
NATURAL JOIN
    hr.departments
ORDER BY employee_id
FETCH NEXT 10 ROWS ONLY;
|MANAGER_ID|DEPARTMENT_ID|EMPLOYEE_ID|FIRST_NAME |LAST_NAME|EMAIL   |PHONE_NUMBER|HIRE_DATE |JOB_ID    |SALARY  |COMMISSION_PCT|DEPARTMENT_NAME|LOCATION_ID|
|----------|-------------|-----------|-----------|---------|--------|------------|----------|----------|--------|--------------|---------------|-----------|
|100       |90           |101        |Neena      |Kochhar  |NKOCHHAR|515.123.4568|2005-09-21|AD_VP     |17000.00|              |Executive      |1700       |
|100       |90           |102        |Lex        |De Haan  |LDEHAAN |515.123.4569|2001-01-13|AD_VP     |17000.00|              |Executive      |1700       |
|103       |60           |104        |Bruce      |Ernst    |BERNST  |590.423.4568|2007-05-21|IT_PROG   |6000.00 |              |IT             |1400       |
|103       |60           |105        |David      |Austin   |DAUSTIN |590.423.4569|2005-06-25|IT_PROG   |4800.00 |              |IT             |1400       |
|103       |60           |106        |Valli      |Pataballa|VPATABAL|590.423.4560|2006-02-05|IT_PROG   |4800.00 |              |IT             |1400       |
|103       |60           |107        |Diana      |Lorentz  |DLORENTZ|590.423.5567|2007-02-07|IT_PROG   |4200.00 |              |IT             |1400       |
|108       |100          |109        |Daniel     |Faviet   |DFAVIET |515.124.4169|2002-08-16|FI_ACCOUNT|9000.00 |              |Finance        |1700       |
|108       |100          |110        |John       |Chen     |JCHEN   |515.124.4269|2005-09-28|FI_ACCOUNT|8200.00 |              |Finance        |1700       |
|108       |100          |111        |Ismael     |Sciarra  |ISCIARRA|515.124.4369|2005-09-30|FI_ACCOUNT|7700.00 |              |Finance        |1700       |
|108       |100          |112        |Jose Manuel|Urman    |JMURMAN |515.124.4469|2006-03-07|FI_ACCOUNT|7800.00 |              |Finance        |1700       |

Cross Natural Join

Oracle

IN -> Oracle_05.sql
SELECT 
    *
FROM 
    hr.employees
CROSS NATURAL JOIN hr.departments
ORDER BY employee_id
FETCH NEXT 10 ROWS ONLY;
|MANAGER_ID|DEPARTMENT_ID|EMPLOYEE_ID|FIRST_NAME |LAST_NAME|EMAIL   |PHONE_NUMBER|HIRE_DATE              |JOB_ID    |SALARY|COMMISSION_PCT|DEPARTMENT_NAME|LOCATION_ID|
|----------|-------------|-----------|-----------|---------|--------|------------|-----------------------|----------|------|--------------|---------------|-----------|
|100       |90           |101        |Neena      |Kochhar  |NKOCHHAR|515.123.4568|2005-09-21 00:00:00.000|AD_VP     |17000 |              |Executive      |1700       |
|100       |90           |102        |Lex        |De Haan  |LDEHAAN |515.123.4569|2001-01-13 00:00:00.000|AD_VP     |17000 |              |Executive      |1700       |
|103       |60           |104        |Bruce      |Ernst    |BERNST  |590.423.4568|2007-05-21 00:00:00.000|IT_PROG   |6000  |              |IT             |1400       |
|103       |60           |105        |David      |Austin   |DAUSTIN |590.423.4569|2005-06-25 00:00:00.000|IT_PROG   |4800  |              |IT             |1400       |
|103       |60           |106        |Valli      |Pataballa|VPATABAL|590.423.4560|2006-02-05 00:00:00.000|IT_PROG   |4800  |              |IT             |1400       |
|103       |60           |107        |Diana      |Lorentz  |DLORENTZ|590.423.5567|2007-02-07 00:00:00.000|IT_PROG   |4200  |              |IT             |1400       |
|108       |100          |109        |Daniel     |Faviet   |DFAVIET |515.124.4169|2002-08-16 00:00:00.000|FI_ACCOUNT|9000  |              |Finance        |1700       |
|108       |100          |110        |John       |Chen     |JCHEN   |515.124.4269|2005-09-28 00:00:00.000|FI_ACCOUNT|8200  |              |Finance        |1700       |
|108       |100          |111        |Ismael     |Sciarra  |ISCIARRA|515.124.4369|2005-09-30 00:00:00.000|FI_ACCOUNT|7700  |              |Finance        |1700       |
|108       |100          |112        |Jose Manuel|Urman    |JMURMAN |515.124.4469|2006-03-07 00:00:00.000|FI_ACCOUNT|7800  |              |Finance        |1700       |

Snowflake

OUT -> Oracle_05.sql
SELECT
    *
FROM
    hr.employees
    NATURAL JOIN
        hr.departments
ORDER BY employee_id
FETCH NEXT 10 ROWS ONLY;
|MANAGER_ID|DEPARTMENT_ID|EMPLOYEE_ID|FIRST_NAME |LAST_NAME|EMAIL   |PHONE_NUMBER|HIRE_DATE |JOB_ID    |SALARY  |COMMISSION_PCT|DEPARTMENT_NAME|LOCATION_ID|
|----------|-------------|-----------|-----------|---------|--------|------------|----------|----------|--------|--------------|---------------|-----------|
|100       |90           |101        |Neena      |Kochhar  |NKOCHHAR|515.123.4568|2005-09-21|AD_VP     |17000.00|              |Executive      |1700       |
|100       |90           |102        |Lex        |De Haan  |LDEHAAN |515.123.4569|2001-01-13|AD_VP     |17000.00|              |Executive      |1700       |
|103       |60           |104        |Bruce      |Ernst    |BERNST  |590.423.4568|2007-05-21|IT_PROG   |6000.00 |              |IT             |1400       |
|103       |60           |105        |David      |Austin   |DAUSTIN |590.423.4569|2005-06-25|IT_PROG   |4800.00 |              |IT             |1400       |
|103       |60           |106        |Valli      |Pataballa|VPATABAL|590.423.4560|2006-02-05|IT_PROG   |4800.00 |              |IT             |1400       |
|103       |60           |107        |Diana      |Lorentz  |DLORENTZ|590.423.5567|2007-02-07|IT_PROG   |4200.00 |              |IT             |1400       |
|108       |100          |109        |Daniel     |Faviet   |DFAVIET |515.124.4169|2002-08-16|FI_ACCOUNT|9000.00 |              |Finance        |1700       |
|108       |100          |110        |John       |Chen     |JCHEN   |515.124.4269|2005-09-28|FI_ACCOUNT|8200.00 |              |Finance        |1700       |
|108       |100          |111        |Ismael     |Sciarra  |ISCIARRA|515.124.4369|2005-09-30|FI_ACCOUNT|7700.00 |              |Finance        |1700       |
|108       |100          |112        |Jose Manuel|Urman    |JMURMAN |515.124.4469|2006-03-07|FI_ACCOUNT|7800.00 |              |Finance        |1700       |

Natural Cross Join

Oracle

IN -> Oracle_06.sql
SELECT 
    *
FROM 
    hr.employees
NATURAL CROSS JOIN hr.departments
ORDER BY employee_id
FETCH NEXT 10 ROWS ONLY;
|EMPLOYEE_ID|FIRST_NAME|LAST_NAME|EMAIL|PHONE_NUMBER|HIRE_DATE              |JOB_ID |SALARY|COMMISSION_PCT|MANAGER_ID|DEPARTMENT_ID|DEPARTMENT_ID|DEPARTMENT_NAME |MANAGER_ID|LOCATION_ID|
|-----------|----------|---------|-----|------------|-----------------------|-------|------|--------------|----------|-------------|-------------|----------------|----------|-----------|
|100        |Steven    |King     |SKING|515.123.4567|2003-06-17 00:00:00.000|AD_PRES|24000 |              |          |90           |10           |Administration  |200       |1700       |
|100        |Steven    |King     |SKING|515.123.4567|2003-06-17 00:00:00.000|AD_PRES|24000 |              |          |90           |100          |Finance         |108       |1700       |
|100        |Steven    |King     |SKING|515.123.4567|2003-06-17 00:00:00.000|AD_PRES|24000 |              |          |90           |90           |Executive       |100       |1700       |
|100        |Steven    |King     |SKING|515.123.4567|2003-06-17 00:00:00.000|AD_PRES|24000 |              |          |90           |80           |Sales           |145       |2500       |
|100        |Steven    |King     |SKING|515.123.4567|2003-06-17 00:00:00.000|AD_PRES|24000 |              |          |90           |70           |Public Relations|204       |2700       |
|100        |Steven    |King     |SKING|515.123.4567|2003-06-17 00:00:00.000|AD_PRES|24000 |              |          |90           |60           |IT              |103       |1400       |
|100        |Steven    |King     |SKING|515.123.4567|2003-06-17 00:00:00.000|AD_PRES|24000 |              |          |90           |50           |Shipping        |121       |1500       |
|100        |Steven    |King     |SKING|515.123.4567|2003-06-17 00:00:00.000|AD_PRES|24000 |              |          |90           |40           |Human Resources |203       |2400       |
|100        |Steven    |King     |SKING|515.123.4567|2003-06-17 00:00:00.000|AD_PRES|24000 |              |          |90           |30           |Purchasing      |114       |1700       |
|100        |Steven    |King     |SKING|515.123.4567|2003-06-17 00:00:00.000|AD_PRES|24000 |              |          |90           |20           |Marketing       |201       |1800       |

Snowflake

OUT -> Oracle_06.sql
SELECT
    *
FROM
    hr.employees
    CROSS JOIN hr.departments
ORDER BY employee_id
FETCH NEXT 10 ROWS ONLY;
|EMPLOYEE_ID|FIRST_NAME|LAST_NAME|EMAIL|PHONE_NUMBER|HIRE_DATE |JOB_ID |SALARY  |COMMISSION_PCT|MANAGER_ID|DEPARTMENT_ID|DEPARTMENT_ID|DEPARTMENT_NAME |MANAGER_ID|LOCATION_ID|
|-----------|----------|---------|-----|------------|----------|-------|--------|--------------|----------|-------------|-------------|----------------|----------|-----------|
|100        |Steven    |King     |SKING|515.123.4567|2003-06-17|AD_PRES|24000.00|              |          |90           |80           |Sales           |145       |2500       |
|100        |Steven    |King     |SKING|515.123.4567|2003-06-17|AD_PRES|24000.00|              |          |90           |20           |Marketing       |201       |1800       |
|100        |Steven    |King     |SKING|515.123.4567|2003-06-17|AD_PRES|24000.00|              |          |90           |60           |IT              |103       |1400       |
|100        |Steven    |King     |SKING|515.123.4567|2003-06-17|AD_PRES|24000.00|              |          |90           |70           |Public Relations|204       |2700       |
|100        |Steven    |King     |SKING|515.123.4567|2003-06-17|AD_PRES|24000.00|              |          |90           |90           |Executive       |100       |1700       |
|100        |Steven    |King     |SKING|515.123.4567|2003-06-17|AD_PRES|24000.00|              |          |90           |30           |Purchasing      |114       |1700       |
|100        |Steven    |King     |SKING|515.123.4567|2003-06-17|AD_PRES|24000.00|              |          |90           |10           |Administration  |200       |1700       |
|100        |Steven    |King     |SKING|515.123.4567|2003-06-17|AD_PRES|24000.00|              |          |90           |100          |Finance         |108       |1700       |
|100        |Steven    |King     |SKING|515.123.4567|2003-06-17|AD_PRES|24000.00|              |          |90           |50           |Shipping        |121       |1500       |
|100        |Steven    |King     |SKING|515.123.4567|2003-06-17|AD_PRES|24000.00|              |          |90           |40           |Human Resources |203       |2400       |

Known issues

1. Results ordering mismatch between languages

The result of the query will have the same content in both database engines but the order might be different if no Order By clause is defined in the query.

Oracle SQL Reference Inner Join Subsection
section