sql server's SQL SELECT INTO statement

SELECT INTO statement can be used to create backup copies of the table.

SELECT INTO statement

SELECT INTO statement to select data from a table, and the data into another table.

SELECT INTO statement is used to create backup copies of tables or for archiving records.

SQL SELECT INTO Syntax

You can put all the columns into the new table:

	SELECT *
INTO new_table_name [IN externaldatabase] 
FROM old_tablename

Or only the desired columns into a new table:

	SELECT column_name(s)
INTO new_table_name [IN externaldatabase] 
FROM old_tablename

SQL SELECT INTO Example - make a backup copy

The following example will make a backup copy "Persons" table:

	SELECT *
INTO Persons_backup
FROM Persons

IN clause can be used to copy another database tables:

	SELECT *
INTO Persons IN 'Backup.mdb'
FROM Persons

If we want to copy certain domains, these domains can be listed after the SELECT statement:

	SELECT LastName,FirstName
INTO Persons_backup
FROM Persons

SQL SELECT INTO instance - with a WHERE clause

We can also add a WHERE clause.

The following example by extraction living in "Beijing" of information from the people "Persons" table, create a table with two columns titled "Persons_backup" of:

	SELECT LastName,Firstname
INTO Persons_backup
FROM Persons
WHERE City='Beijing'

SQL SELECT INTO Example - tables are linked

Select data from more than one table can be done also.

The following example creates a new table named "Persons_Order_Backup", which contains the information obtained from the two tables Persons and Orders:

	SELECT Persons.LastName,Orders.OrderNo
INTO Persons_Order_Backup
FROM Persons
INNER JOIN Orders
ON Persons.Id_P=Orders.Id_P