SQL - Add numbers to a literal in query

i am trying to add numbers to a literal in a select query.  I want to start at a specific number and add to it for each row.  The literal is set.  Now I have something like this:

"NO"1+5 as New_FacID

which i want to look like in the New_FacID field:

NO1
NO2
NO3
NO4
NO5
NO6

because I am selecting 6 records.

Thanks.
donnie91910Asked:
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Scott PletcherConnect With a Mentor Senior DBACommented:
Counting all previous rows for every current row would be huge overhead.

Instead add a ROW_NUMBER() and then add that value to the starting value.

DECLARE @prefix varchar(30)
DECLARE @starting_number int
SET @prefix = 'NO'
SET @starting_number = <value_you_entered_for_starting_number>

SELECT
    @prefix + CAST(@starting_number + row_num - 1 AS varchar(10)) AS New_FacID,
    <column_name1>, <column_name2>, ...
FROM (
    SELECT *, ROW_NUMBER() OVER(ORDER BY <table_column>) AS row_num
    FROM table_name
) AS derived
--ORDER BY ...
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donnie91910Author Commented:
Actually I will be putting in the starting number and then the number will increment automatically for each record in my query.

starting number at 1.  Six records are returned.

Looks like this:
NO1
NO2
NO3
NO4
NO5
NO6

Second Select statement starting number at 7.  Three records are returned.
NO7
NO8
NO9

Thanks.
0
 
lcohanDatabase AnalystCommented:
You could get the "relative record number" of each ro by running a statement like below - just replace actual table/column names in it


SELECT id, (SELECT COUNT(*) FROM table_name t2 WHERE t2.id <= t.id) AS rownumber
FROM table_name t
ORDER BY id


OR you can use that and add your specific number to the COUNT(*) to get the Starting position.

and you could concatenate those files like:



SELECT Id + CAST (  (SELECT COUNT(*) FROM table_name t2 WHERE t2.id <= t.id) AS sysname) AS  New_FacID
FROM table_name t
ORDER BY id
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donnie91910Author Commented:
how do I hardcode the literal "NO" in my query and have the number concatinate  and increment that I have hardcoded as my starting number and have it increment for the number of rows in my query result set.

Looks like:
Select statement starting number at 7.  Three records are returned.
NO7
NO8
NO9

thanks.
0
 
donnie91910Author Commented:
Scott Pletcher - i'll try it
0
 
donnie91910Author Commented:
Scott Pletcher can the code you sent me be modified for Toad Oracle?
0
 
SharathData EngineerCommented:
What is your DB? Oracle or SQL Server?
0
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