SQL DATABASE: copying data of one table into another table

INSERT INTO TABLE2 (COL1, COL2, COL3) SELECT COL1, COL4, COL7 FROM TABLE1​

try this ​

RAANA

In C# I want to write the query for copying one table data into another table, can anybody help me?

Bulk Copy feature of ADO.NET might help you take a look at that: #-Link-Snipped-#

This is the simplest way to copy a table into another (new) table in the same SQL Server database. This way of copying does not copy constraints and indexes.

select * into <destination table> from <source table>
 
 
Example:
Select * into employee_backup from employee

We can also select only a few columns into the destination table like below

select col1, col2, col3 into <destination table>
from <source table>
 
Example:
Select empId, empFirstName, empLastName, emgAge into employee_backup
from employee

Use this to copy only the structure of the source table.

select * into <destination table> from <source table> where 1 = 2
 
Example:
select * into employee_backup from employee where 1=2

Use this to copy a table across two database in the same Sql Server.

select * into <destination database.dbo.destination table>
from <source database.dbo.source table>
 
Example:
select * into Mydatabase2.dbo.employee_backup
from mydatabase1.dbo.employee

Any one of the following methods can be employed to copy a table into a destination database on a different SQL Server.

1. Data Transformation Service (DTS) – SQL Server 2000.
2. SQL Server Integration Service (SSIS) – SQL Server 2005
3. SQL Server “Export Data” task. – SQL Server 2000/2005
4. Create a linked Server of the destination SQL Server on the source SQL Server and then copy the table. – SQL Server 2000/ 2005.
5. We can also use <a href="https://vyaskn.tripod.com/code.htm#tagit" target="_blank" rel="nofollow noopener noreferrer">My code library (SQL Server T-SQL code samples, snippets, examples, tips, tricks, stored procedures, user defined functions, VB programs): Narayana Vyas Kondreddi's home page</a> to generate data insertion scripts and then run the insert scripts.
6. I almost forgot this 😉 you can open the source table , select the row(s), copy (ctrl + C) the row(s), open the destination table and then paste (ctrl + V) the row(s).