How can I ignore default value on SQL insert statement?

Question

I've already set default value for some of my columns.

CREATE TABLE [dbo].[TEST]
(
    [id] [INT] NULL,
    [fname] [VARCHAR](50) NULL,
    [lname] [VARCHAR](50) NULL,
    [default1] [VARCHAR](50) NULL,
    [default2] [VARCHAR](50) NULL,
    [default3] [VARCHAR](50) NULL
) ON [PRIMARY]

ALTER TABLE [dbo].[TEST] 
    ADD CONSTRAINT [DF_TEST_job] DEFAULT ('test1') FOR [default1]

ALTER TABLE [dbo].[TEST] 
    ADD CONSTRAINT [DF_TEST_default2] DEFAULT ('test2') FOR [default2]

ALTER TABLE [dbo].[TEST] 
    ADD CONSTRAINT [DF_TEST_default3] DEFAULT ('test3') FOR [default3]

Now I'm going to set all columns with default values to null in my INSERT statement sometimes.

I know that if I provide values for the columns in the INSERT , their defaults will be ignored. But I'm looking for a way to set default values off on some inserts. I know that it might be impossible, but I want to learn it's way (if there is.

Thanks for the help.

Answer 1

I don't fully understand what you're trying to ask here....

If you provide a value for a column - even if it's NULL , in your INSERT statement, then SQL Server will use that provided value and skip any default value defined on the column.

So by just providing NULL , you're basically doing what your title asks: ignore the default value of the column.... the default value of a column is only used if you omit that column entirely from your INSERT statement....