SQL SELECT INTO Statement 6

SQL SELECT INTO Statement

The SQL Server SELECT INTO statement is useful to insert the data into tables, but before that, first, it creates a new table. Then this SELECT INTO inserts the chosen rows by the Select Statement into that new table.

If we haven’t created the destination table, then the SQL Server Select Into statement can be handy to insert the data into the destination table. If you have an existing table, then use Insert Into.

Syntax

The Syntax of the SQL Server SELECT INTO Statement is as shown below:

SELECT [Column Names]
INTO [New_Table]
FROM Source
WHERE Condition --This is optional
  • Columns: It allows us to choose the number of columns to Select from the tables. It may be one or more.
  • New_Table: Please specify the fully qualified Unique name for SQL Server.
  • Source: One or more tables are present in the Database. Use JOINS to join multiple.

The screenshot below shows that We don’t have any Department or Employee table in the tutorials database. So our task is to Select the Data present in that table from the TEST Database and insert it into Tutorials Database using SELECT INTO Statement.

Databases and Tables in Object Explorer 1

Data inside the Employee is

Data inside a Employee Table 2

Data inside the Department Table is

Data in Department table 3

SQL SELECT INTO Insert All Columns

Here, we have chosen all the Columns present in the Department and inserted them into the Database.

SELECT [id]
      ,[DepartmentName]
INTO [SQLServer Tutorials].[dbo].[Department]
FROM [SQLTEST].[dbo].[Department]

OR We can also use the asterisk (*), and the select * into statement as well. But it is not good practice to use an asterisk, so always provide the column names.

SELECT *
INTO [SQLServer Tutorials].[dbo].[Department]
FROM [SQLTEST].[dbo].[Department]

The above query creates a new [Department] and inserts all the records from the source data. The Execution Message:

Messages
-------
(8 rows(s) affected)

Let us see whether the table creates with data in the destination database or not

SQL SELECT INTO Statement 5

In this SQL Server Select Into example, We select a few Columns present in the Employee and insert them into Tutorials Database. Here, we restrict the rows as well using the WHERE Clause.

SELECT [FirstName]
      ,[LastName]
      ,[DepartID]
INTO [SQLServer Tutorials].[dbo].[Employee]
FROM [SQLTEST].[dbo].[Employee]
WHERE [DepartID] = 1

Above query creates a new table called [Employee] and insert [FirstName], [LastName] and [DepartID] columns from the source data, where [DepartID] value is equal to 1. 

Messages
-------
(4 rows(s) affected)

Let’s see whether the table was created with data in the target database or not.

SQL SELECT INTO Statement 7

SELECT INTO Insert Data from Multiple Tables

This example uses Columns present in both the Employee and Department. Next, insert them into Tutorials Database.

Here, we are using the INNER JOIN for joining the two tables using id column.

SELECT EMP.[FirstName]
      ,EMP.[LastName]
      ,DEPT.[DepartmentName]
INTO [SQLServer Tutorials].[dbo].[Select Into]
FROM [SQLTEST].[dbo].[Employee] EMP
INNER JOIN
[SQLTEST].[dbo].[Department] DEPT ON
EMP.id = DEPT.id
Messages
-------
(8 rows(s) affected)

Let us see whether the data in the destination database is created or not.

SQL SELECT INTO Statement 9