Question

My table is having approximately 80 columns. I am performing the following query on the table.

SELECT * FROM mobile_details WHERE id=4;

It is confirmed that the above query will return only one row. I want to select only the columns which are not having value NULL or empty. How can I do this?

Note: A very inefficient way to do this is to put NOT NULL in every column while SELECTing. But I need a more efficient and effective way (either in PHP code or MySQL query).

Can I do something like this? SELECT * FROM mobile_details WHERE id=4 AND mobile_details.* NOT NULL;

I am using PHP + MySQL + Apache on CentOS server.

Answer 1

You can’t change the list of columns programmatically in SQL. There’s no syntax for it.