two insert into Statement in sql server

Hi, i am using two insert into statment in single stored procedure, this stored procedure will execute automatically, For first insert into statment i am getting all rows but for second insert into statment i am receiving zero rows because of the condition where P_Date NOT IN (SELECT P_Date from Tbl_EmpPunchingDetail) . Can anyone guide me that i should get only one row for each date for each Pin_Code without repeatation when executing stored procdeure multiple times for second insert into Statement????

 

Create proc [dbo].[sp_UpdateEmpPunchingDetailTbl]

as

begin

--First insert statement

INSERT INTO Tbl_EmpPunchingDetail

select

Pin_Code as Pin_Code,

P_Date as P_Date,

IN1 as IN1,

OUT1 as OUT1

from

[Zultime].[dbo].[TIME_SHEET]

where P_Date NOT IN (SELECT P_Date from Tbl_EmpPunchingDetail)

AND P_Date <= dateadd(day,datediff(day,1,GETDATE()),0)

--Second insert statement

DECLARE @mydate DATETIME

SELECT @mydate = GETDATE()

declare @P_Date table

(

[P_Date] date

)

insert into @P_Date

select distinct [P_Date]

FROM [Zultime].[dbo].[TIME_SHEET]

where [P_Date] BETWEEN CONVERT(VARCHAR(25),DATEADD(dd,-(DAY(@mydate)+8),@mydate),101)

AND CONVERT(VARCHAR(25),DATEADD(dd,-(DAY(@mydate)-22),@mydate),101)

INSERT INTO Tbl_EmpPunchingDetail

select

[Pin_Code], P_Date, '07:30' as [IN1], '16:30' as [OUT1]

FROM [AttendanceCorrection].[dbo].[Tbl_FMOEmp]

cross join @P_Date

where

P_Date NOT IN (SELECT P_Date from Tbl_EmpPunchingDetail )

AND

P_Date <= dateadd(day,datediff(day,1,GETDATE()),0)

end