Dynamically generated insert and select statements - tsql

Question

I have a database with some tables in it and I want to make dynamically generated insert and select statements without the need to use the case statement in the select clause for each table.
The select statement is quite easy, the challenge is with the insert one because I have to deal with each column and its data type. I managed to overcome it by means of a case statement, but I think it's hard working for tables with lots of columns and for databases with many tables.
I wish it was possible to change hardcoded table and column names for each table and column I need the dynamically generated SQL command.
I worked out in the following select statement for the given tables of the database (testDB) I have:
use testDB;
go
set dateformat dmy;
select
'select * from ' + s.name + '.' + t.name + ';' as cmd_select,
'insert into ' + s.name + '.' + t.name + ' (' +
stuff(( select ', ' + column_name
from information_schema.columns
where table_name = t.name and ordinal_position > 1
order by ordinal_position
for xml path(''), type).value('.', 'nvarchar(max)'),
1, 2, '')
+ ') values (' +
case t.name
when 'Person' then '''xxx'''
when 'WeightHistory' then '0.0, ''' + convert(varchar, current_timestamp, 103) + ''', ''' + left(convert(varchar, current_timestamp, 108), 5) + ''', 1'
when 'WorkTime' then '''' + convert(varchar, current_timestamp, 103) + ''', ''' + left(convert(varchar, current_timestamp, 108), 5) + ''', 1, null'
when 'TimeReference' then '''07:00'', ''' + convert(varchar, current_timestamp, 103) + ''', null'
end
+ ');'as cmd_insert --,
--t.lob_data_space_id
--, s.name, t.name, *
from sys.tables as t
inner join sys.schemas as s on t.schema_id = s.schema_id
where t.lob_data_space_id = 0; /* tables that don't have LOB columns (sysdiagrams, varchar(max), xml, etc.) */
What exactly I want to know is:
Is there a better way of making the dynamically generated insert statement without using a case statement for each table and column of the database?
ADITIONAL INFO
The table definition for the above code is the following:
if not exists (select * from sys.tables where lower(name) = N'person' )
begin
create table Person.Person (
PersonID int
constraint PK_Person
primary key
identity (1, 1),
Name varchar(100)
);
end;
go
if not exists (select * from sys.tables where lower(name) = N'weighthistory' )
begin
create table dbo.WeightHistory (
WeightHistoryID int
constraint PK_WeightHistory
primary key
identity (1, 1),
MeasureValue money,
MeasureDate date,
MeasureTime time(0),
PersonID int,
constraint FK_Weight_Person foreign key (PersonID) references Person.Person (PersonID)
);
end;
go
if not exists (select * from sys.tables where lower(name) = N'worktime')
begin
create table WorkTime (
WorkTimeID int
constraint PK_WorkTime primary key
identity(1, 1),
WorkDate date,
WorkTime time(0),
PersonID int,
TimeReferenceID int,
constraint FK_WorkTime_Person foreign key (PersonID) references Person.Person (PersonID) on delete cascade,
constraint FK_WorkTime_Reference foreign key (TimeReferenceID) references Work.Timereference (TimeReferenceID)
);
end;
go
if not exists (select * from sys.tables where lower(name) = N'timereference')
begin
create table Work.TimeReference (
TimeReferenceID int
constraint PK_TimeReferene primary key
identity (1, 1),
WorkTime time(0),
WorkTimeStartDate date,
WorkTimeEndDate date
);
end;