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Just so, how do I join two tables in different databases?

SQL Server allows you to join tables from different databases as long as those databases are on the same server. The join syntax is the same; the only difference is that you must fully specify table names. Let's suppose you have two databases on the same server - Db1 and Db2 .

can we join two tables different databases in MySQL? Sometimes it's necessary to perform a join on two tables that are located in different databases. To do this, qualify table and column names sufficiently so that MySQL knows what you're referring to. To indicate this, qualify each table name with a prefix that specifies which database it's in.

Beside above, how do I join two tables in SQL without joins?

Solution 1

1. SELECT column1, column2, etc FROM table1 UNION SELECT column1, column2, etc FROM table2.
2. SELECT table1.Column1, table2.Column1 FROM table1 CROSS JOIN table2 WHERE table.Column1 = 'Some value'
3. SELECT table1.Column1, table2.Column2 FROM table1 INNER JOIN table2 ON 1 = 1.

Can you join multiple tables in SQL?

If you need data from multiple tables in one SELECT query you need to use either subquery or JOIN. Most of the times we only join two tables like Employee and Department but sometimes you may require joining more than two tables and a popular case is joining three tables in SQL.