Structure Query Language ( Select Into )

Select Into 

The SELECT INTO statement selects data from one table and inserts it into a different table.

The SELECT INTO statement is most often used to create backup copies of tables.

SQL SELECT INTO Syntax

We can select all columns into the new table:

SELECT *

INTO new_table_name [IN externaldatabase]

FROM old_tablename

Or we can select only the columns we want into the new table:

SELECT column_name(s)

INTO new_table_name [IN externaldatabase]

FROM old_tablename

SQL SELECT INTO Example

Make a Backup Copy - Now we want to make an exact copy of the data in our "Persons" table.

We use the following SQL statement:

SELECT *

INTO Persons_Backup

FROM Persons

We can also use the IN clause to copy the table into another database:

SELECT *

INTO Persons_Backup IN 'Backup.mdb'

FROM Persons

We can also copy only a few fields into the new table:

SELECT LastName,FirstName

INTO Persons_Backup

FROM Persons

SQL SELECT INTO - With a WHERE Clause

We can also add a WHERE clause.

The following SQL statement creates a "Persons_Backup" table with only the persons who lives in the city "Sandnes":

SELECT LastName,Firstname

INTO Persons_Backup

FROM Persons

WHERE City='Sandnes'

SQL SELECT INTO - Joined Tables

Selecting data from more than one table is also possible.

The following example creates a "Persons_Order_Backup" table contains data from the two tables "Persons" and "Orders":

SELECT Persons.LastName,Orders.OrderNo

INTO Persons_Order_Backup

FROM Persons

INNER JOIN Orders

ON Persons.P_Id=Orders.P_Id