Adding row for every date between two dates in SQL

I have a table with values for a start and end date. If the start and end date is not the same, I want to duplicate the rows for the dates in between, so that each date has his own row with the same information.
Of course I have read many solutions, but could still not figure out how to deal with my problem. I do not want to make a calendar table to help solve this problem. Therefore, this question does not solve my problem.

Here is a minimal reproducable example:

CREATE TABLE
  myTable (
    [SchoolId] int,
    [StartDate] date,
    [EndDate] date,
    [SomeBit] bit,
    [BigId] bigint,
);

INSERT INTO
  myTable (
    [SchoolId],
    [StartDate],
    [EndDate],
    [SomeBit],
    [BigId]
  )
VALUES
  (1, '20150101', '20150104', 0,  437457324555),
  (2, '20150101', '20150101', 1,  4573467234),
  (3, '20150102', '20150102', 0,  45756654565),
  (4, '20150102', '20150103', 1,  4564576754),
  (5, '20150105', '20150106', 1, 54745753)
;

SELECT * FROM myTable;

In this example, I would want an outcome that has four lines with schoolId 1, Somebit 0 and BigId 437… (so copying the data except for the start and end date) with start dates 2015-01-01, 2015-01-02, 2015-01-03 and 2015-01-04. The value of the end date won’t be used.

As for rows 2 and 3 the start and end date are the same, nothing should be added.
For rows 4 and 5 one row each should be added with startdates 2015-01-03 and 2015-01-05 respectively.

In the real table, I am dealing with 100.000s of rows. I work with T-SQL in SSMS.

>Solution :

A solution for ISO SQL is :

SELECT *, DATEADD(day, value, [StartDate]) 
FROM   myTable AS T
       CROSS APPLY GENERATE_SERIES(0, DATEDIFF(DAY, [StartDate], [EndDate]))

GENERATE_SERIES has been add to SQL ISO standard and can be found in PostGreSQL and MS SQL Server.

This example if for MS SQL Server.