inner join mysql
SELECT column_name(s)
FROM table1
INNER JOIN table2
ON table1.column_name = table2.column_name;inner join mysql
SELECT column_name(s)
FROM table1
INNER JOIN table2
ON table1.column_name = table2.column_name;how to join tables in sql
JOINING 2 Tables in sql
SELECT X.Column_Name , Y.Column_Name2
FROM TABLES1_NAME X
INNER JOIN TABLES2_NAME Y ON X.Primary_key = Y.Foreign_key;
--FOR EXAMPLE
--GET THE FIRST_NAME AND JOB_TITLE
--USE EMPLOYEES AND JOBS TABLE
--THE RELATIONSHIP IS JOB_ID
SELECT E.FIRST_NAME , J.JOB_TITLE
FROM EMPLOYEES E
INNER JOIN JOBS J ON J.JOB_ID = E.JOB_ID;mysql join
-- MySQL INNER JOINS return all rows from multiple tables where the join condition is met.
SELECT columns
FROM table1
INNER JOIN table2
ON table1.column = table2.column;
-- LEFT OUTER JOIN
-- Another type of join is called a MySQL LEFT OUTER JOIN. This type of join returns all rows from the LEFT-hand table specified in the ON condition and only those rows from the other table where the joined fields are equal (join condition is met).
SELECT columns
FROM table1
LEFT JOIN table2
ON table1.column = table2.column;
-- RIGHT OUTER JOIN
-- Another type of join is called a MySQL RIGHT OUTER JOIN. This type of join returns all rows from the RIGHT-hand table specified in the ON condition and only those rows from the other table where the joined fields are equal (join condition is met).
SELECT columns
FROM table1
RIGHT JOIN table2
ON table1.column = table2.column;
-- The mySQL CROSS JOIN produces a result set which is the number of rows in the first table multiplied by the number of rows in the second table if no WHERE clause is used along with CROSS JOIN. This kind of result is called as Cartesian Product.
-- If WHERE clause is used with CROSS JOIN, it functions like an INNER JOIN.
SELECT columns
FROM table1
CROSS JOIN table2;MySQL Join
A relational database consists of multiple related tables linking together using common columns which are known as foreign key columns. Because of this, data in each table is incomplete from the business perspective.
MySQL supports the following types of joins:
Inner join
Left join
Right join
Cross join
The following shows the basic syntax of the inner join clause that joins two tables table_1 and table_2:
SELECT column_list
FROM table_1
INNER JOIN table_2 ON join_condition;
SELECT column_list
FROM table_1
INNER JOIN table_2 USING (column_name);
SELECT column_list
FROM table_1
LEFT JOIN table_2 USING (column_name);
Here is the syntax of the right join:
SELECT column_list
FROM table_1
RIGHT JOIN table_2 ON join_condition;
The following shows the basic syntax of the cross join clause:
SELECT select_list
FROM table_1
CROSS JOIN table_2;Copyright © 2021 Codeinu
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