inner join on multiple tables code example

Example 1: join multiple tables sql

SELECT TableA.*, TableB.*, TableC.*, TableD.*
FROM TableA
    JOIN TableB
        ON TableB.aID = TableA.aID
    JOIN TableC
        ON TableC.cID = TableB.cID
    JOIN TableD
        ON TableD.dID = TableA.dID
WHERE DATE(TableC.date)=date(now())

Example 2: two inner joins

SELECT 
  c.*, i.*, a.* 
FROM 
  invoices i 
INNER JOIN 
  client c 
ON 
  i.clientid = c.clientid 
INNER JOIN 
  address a 
ON 
  a.clientid = c.clientid 
WHERE 
  i.id = 21

Example 3: join multiple tables in sql

SELECT Books_Namn, Author_Namn, Author_Age, Store_Namn FROM books

JOIN Author ON Author_Id = Author_Author_Id

JOIN Books_has_Store ON Books_Books_Id = Books_Id

JOIN Store ON Store_Id = Store_Store_Id;