Bulk Creation of users in DotNetNuke

Hello,

I found the following code in internet on how to delete many users at once from DotNetNuke portal using SQL statement to change directly in SQL database used by DNN.
I would like to do the same for CREATION of users in dotnetnuke using SQL, I have many users each period to create, what SQL code would work?

SELECT UserID FROM Users WHERE UserID > 470
 
DELETE 
FROM dbo.aspnet_Membership 
WHERE UserId IN
(
SELECT  u.UserId
FROM    dbo.aspnet_Users u
INNER     JOIN dbo.aspnet_Applications a ON u.ApplicationId = a.ApplicationId
INNER     JOIN Users U1 On U1.UserName = u.LoweredUserName
WHERE   LOWER(0) = a.LoweredApplicationName
AND U1.UserID > 470
)
 
--- Repeat for tables aspnet_UsersInRoles, aspnetaspnet_Profile, aspnet_Users
 
--- and finally
DELETE FROM dbo.Users WHERE UserID > 470

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