How do I fetch common records from two tables in SQL?

7 Answers. If you are using SQL Server 2005, then you can use Intersect Key word, which gives you common records. If you want in the output both column1 and column2 from table1 which has common columns1 in both tables. Yes, INNER JOIN will work.

How do you fetch data that is common in two query results?

The SQL INTERSECT operator is used to combine like rows from two queries. It returns rows that are in common between both results. To use the SQL INTERSECT operator, both queries must return the same number of columns and those columns must be of compatible data types.

What is difference between inner join and intersect?

They are very different, even in your case. The INNER JOIN will return duplicates, if id is duplicated in either table. INTERSECT removes duplicates. The INNER JOIN will never return NULL , but INTERSECT will return NULL .

How can I get common values from two tables in mysql?

You can use JOIN clause to get data from multiple tables in your single SQL query. A JOIN clause is used to combine rows from two or more tables, based on a related column between them.

How do I combine two query results?

In this step, you create the union query by copying and pasting the SQL statements.

1. On the Create tab, in the Queries group, click Query Design.
2. On the Design tab, in the Query group, click Union.
3. Click the tab for the first select query that you want to combine in the union query.

How can I get matching records from two tables?

You can use full outer join to get matched and unmatched records or count from two tables which has common columns in it. SELECT Sum(CASE WHEN t1. file_name IS NOT NULL AND t2. file_n IS NOT NULL THEN 1 ELSE 0 END) AS matched_count, Sum( CASE WHEN t1.

Which join is used to take unmatched data from 2 tables?

outer join
A join between two tables that returns the results of the INNER join, as well as the unmatched rows from the table, is called an outer join.

What is except in SQL?

The SQL EXCEPT clause/operator is used to combine two SELECT statements and returns rows from the first SELECT statement that are not returned by the second SELECT statement. This means EXCEPT returns only rows, which are not available in the second SELECT statement. MySQL does not support the EXCEPT operator.

What is outer join in SQL?

When performing an inner join, rows from either table that are unmatched in the other table are not returned. In an outer join, unmatched rows in one or both tables can be returned. RIGHT JOIN returns only unmatched rows from the right table. FULL OUTER JOIN returns unmatched rows from both tables.

How do I select from two tables?

SELECT orders. order_id, suppliers.name. FROM suppliers. INNER JOIN orders….Example syntax to select from multiple tables:

1. SELECT p. p_id, p. cus_id, p. p_name, c1. name1, c2. name2.
2. FROM product AS p.
3. LEFT JOIN customer1 AS c1.
4. ON p. cus_id=c1. cus_id.
5. LEFT JOIN customer2 AS c2.
6. ON p. cus_id = c2. cus_id.