/SQL/Sql select from multiple tables without join

Sql select from multiple tables without join

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())

Source: stackoverflow.com

Sql select from multiple tables without join

-- UNION: distinct values (slower)
SELECT emp_name AS name from employees
UNION       
SELECT cust_name AS name from customers;

-- UNION ALL: keeps duplicates (faster)
SELECT emp_name AS name from employees
UNION ALL      
SELECT cust_name AS name from customers;

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;

Similar codes

3 votes190 views1 answer
Sql server version query
SQL
3 votes186 views1 answer
Oracle rollback
SQL
0 vote208 views2 answers
Athena drop partition
SQL
0 vote225 views2 answers
What is the default password for sql server sa
SQL
0 vote186 views1 answer
SQL Hello, [firstname] [lastname]
SQL
5 votes178 views1 answer
List foreign key oracle
SQL
0 vote192 views1 answer
Mysql backup certain tables workbench
SQL
0 vote210 views1 answer
How to define a save method in ruby for sqlite3 databases
SQL
0 vote227 views1 answer
Update sql sintax
SQL
0 vote187 views1 answer
Oracle last character of string
SQL