Seed data with old dates in Temporal Table - SQL Server

Question

I need to seed data for my local development purpose in the following Temporal Table, the start date should be old. The given Table Schema is

CREATE TABLE [d         


        

Answer 1

Finally I found a solution

Step #1: Need to Switch it OFF the SYSTEM_VERSIONING

ALTER TABLE dbo.Contact SET (SYSTEM_VERSIONING = OFF);

Step #2: Need to drop the PERIOD FOR SYSTEM_TIME

ALTER TABLE dbo.Contact DROP PERIOD FOR SYSTEM_TIME

Step #3: Insert required record with past date

INSERT INTO dbo.Contact
(
    ContactID,
    ContactNumber,
    SysStartTime,
    SysEndTime
)
VALUES
(
    NEWID(), -- ContactID - uniqueidentifier
    N'1234567890', -- ContactNumber - nvarchar
    '2014-09-13 00:00:00', -- SysStartTime - datetime2
    '9999-12-31 23:59:59' -- SysEndTime - datetime2
)

Step #4: Need to Add the PERIOD FOR SYSTEM_TIME

ALTER TABLE dbo.Contact
ADD PERIOD FOR SYSTEM_TIME ([SysStartTime], [SysEndTime])

Step #5: Need to Switch it ON the SYSTEM_VERSIONING

ALTER TABLE dbo.[Contact] SET (SYSTEM_VERSIONING = ON
 (HISTORY_TABLE=dbo.[ContactHistory],DATA_CONSISTENCY_CHECK=ON)
);

That's it...