Important Notice: Our web hosting provider recently started charging us for additional visits, which was unexpected. In response, we're seeking donations. Depending on the situation, we may explore different monetization options for our Community and Expert Contributors. It's crucial to provide more returns for their expertise and offer more Expert Validated Answers or AI Validated Answers. Learn more about our hosting issue here.

Why SELECT * is not preferred in embedded SQL programs?

April 26, 2017embedded Programs select sql

0

Posted

Why SELECT * is not preferred in embedded SQL programs?

1 Answer

0

Posted

For three reasons: If the table structure is changed ( a field is added ), the program will have to be modified Program might retrieve the columns which it might not use, leading on I/O over head. The chance of an index only scan is lost.