Insert null/empty value in sql datetime column by default

Question

How do I create a table in SQL server with the default DateTime as empty, not 1900-01-01 00:00:00.000 that I get?

I mean, if there is no value inserted,

Answer 1

1. define it like your_field DATETIME NULL DEFAULT NULL
2. dont insert a blank string, insert a NULL INSERT INTO x(your_field)VALUES(NULL)