How to add a row number to new table in SQL?
48,104
Solution 1
You can use into
clause with IDENTITY
column:
SELECT IDENTITY(int, 1,1) AS ID_Num, col0, col1
INTO NewTable
FROM OldTable;
Here is more information
You can also create table with identity
field:
create table NewTable
(
id int IDENTITY,
col0 varchar(30),
col1 varchar(30)
)
and insert:
insert into NewTable (col0, col1)
SELECT col0, col1
FROM OldTable;
or if you have NewTable and you want to add new column see this solution on SO.
Solution 2
INSERT INTO NewTable (...,...)
SELECT ROW_NUMBER() OVER (ORDER BY order_column), * from SampleTable
Solution 3
If you are in SQL Server
INSERT INTO newTable (idCol, c1,c2,...cn)
SELECT ROW_NUMBER() OVER(ORDER BY c1), c1,c2,...cn
FROM oldTable
Author by
user1772421
Updated on December 04, 2020Comments
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user1772421 over 3 years
I'm trying to create a new table using an existing table already using:
INSERT INTO NewTable (...,...) SELECT * from SampleTable
What I need to is add a record number at the beginning or the end, it really doesn't matter as long as it's there.
Sample Table
Elizabeth RI 02914 Emily MA 01834
Prospective New Table
1 Elizabeth RI 02914 2 Emily MA 01834
Is that at all possible?
This is what I ultimately I'm shooting for... except right now those tables aren't the same size because I need my ErrorTemporaryTable to have a column in which the first row has a number which increments by the previous one by one.
declare @counter int declare @ClientMessage varchar(255) declare @TestingMessage carchar(255) select @counter = (select count(*) + 1 as counter from ErrorValidationTesting) while @counter <= (select count(*) from ErrorValidationTable ET, ErrorValidationMessage EM where ET.Error = EM.Error_ID) begin insert into ErrorValidationTesting (Validation_Error_ID, Program_ID, Displayed_ID, Client_Message, Testing_Message, Create_Date) select * from ErrorTemporaryTable select @counter = @counter + 1 end
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Kaf over 11 yearsselect into creates a new table. If the table already exists then it could be an issue.
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Robert over 11 yearsYes, I know, but I added one more solution how to create table correctly.