Question

Does anyone know how to write a script in stored proc to run the table based on the variable (or will it possible to do so?)?

for example:
I have 3 tables name called customer, supplier, and support

when user input 1, then run table customer, 2 table supplier and 3 table support

declare @input int;

if @input =1
begin
declare @table varchar(50); set @table = 'customer'
end

if @input =2
begin
declare @table varchar(50); set @table = 'supplier '
end

if @input =3
begin
declare @table varchar(50); set @table = 'support'
end 

select *
INTO ##test
from  @table

Answer 1

yes you can do it by using dynamic sql “EXEC” or by “Sp_Executesql” command.

Example :

USE Northwind
GO


CREATE TABLE #MyTemp
   (  RowID    int  IDENTITY,
      LastName varchar(20)
   )

DECLARE @SQL nvarchar(250)
SET @SQL = 'INSERT INTO #MyTemp SELECT LastName FROM Employees;'
EXECUTE sp_executesql @SQL