While loop to populate a table - sql-server

Question

I am trying to use a while loop to populate a table in SQL Server. The data is to be in 5 minute increments from 8:00 am to 7:00 pm for Monday through Friday.
Below is the code that I have in place when I try to pass the variable #Beg to #Temp I get an error:
Msg 102, Level 15, State 1, Line 85
Incorrect syntax near '#Temp'.
Msg 102, Level 15, State 1, Line 90
Incorrect syntax near '#Beg'.
My code:
Create Table TIMESLOT
(
TIMESLOTID int not null identity(1,1),
Beg_Time datetime not null,
End_Time datetime not null,
TimeDayOFWeek varChar(25) not null
);
DECLARE #Beg as Time;
DECLARE #Temp as Time;
DECLARE #End as Time;
DECLARE #Day as dayofweek;
set #Beg = '08:00 AM';
Set #End = '07:00 PM';
set #Day = 'Monday';
While (#Day != 'Saturday' )
Begin
While (#Beg <= #End)
Begin
#Temp = #Beg;
DateAdd(minute,5,#Temp)
Insert into TIMESLOT (Beg_Time, End_Time, TimeDay0fWeek)
Values (#Beg, #Temp, #Day)
if (#Beg <= #End)
#Beg = #Temp
Else
#Beg = '08:00 AM'
#Day = Datadd(day, 1, #Day)
End
End
End

Answer 1

try the below. Your syntax was not quite correct
Create Table TIMESLOT
(
TIMESLOTID int not null identity(1,1),
Beg_Time datetime not null,
End_Time datetime not null,
TimeDayOFWeek varChar(25) not null
);
DECLARE #Beg as Time;
DECLARE #Temp as Time;
DECLARE #End as Time;
DECLARE #Day as dayofweek;
set #Beg = '08:00 AM';
Set #End = '07:00 PM';
set #Day = 'Monday';
While (#Day != 'Saturday' )
Begin
While (#Beg <= #End)
Begin
Set #Temp = #Beg;
Set #Temp = DateAdd(MINUTE,5,#Temp)
Insert into TIMESLOT (Beg_Time, End_Time, TimeDayOFWeek)
Values (#Beg, #Temp, #Day)
If (#Beg <= #End)
Begin
Set #Beg = #Temp
End
Else
Begin
Set #Beg = '08:00 AM'
Set #Day = DateAdd(day,1, #Day)
End
End
End

Answer 2

This is the code that finally fixed the issue, Wheels73 was correct my syntax was wrong. But I also had the if statement and the variable #beg reset in the wrong area.
While (#Day != 'Saturday' ) -- first end
Begin
While (#Beg < #End)
Begin--Second
Set #Temp = #Beg
Set #Temp = DateAdd(MINUTE,5,#Temp)
Insert into TIMESLOT (Beg_Time, End_Time, TimeDayOFWeek)
Values (#Beg, #Temp, #Day)
Set #Beg = #Temp
End--Second
Set #Beg = '08:00 AM'
if(#Day = 'Monday')
Begin
Set #Day = 'Tuesday'
End
Else if(#Day = 'Tuesday')
Begin
Set #Day = 'Wednesday'
End
Else if (#Day = 'Wednesday')
Begin
Set #Day = 'Thursday'
End
Else if (#Day = 'Thursday')
Begin
Set #Day = 'Friday'
End
Else
Begin
Set #Day = 'Saturday'
End
End--firstenter code here