What are the basic rules to be followed when you are using SQL SET Operators? Posted in SQL Interview Questions by Chandrasekhar Raparthi On July 10, 2014. No comments Rules: Number of columns in all the result sets should be matched(same). Respective data types should be matched between all the result sets. Share this:GooglePinterestEmailTwitterLinkedInFacebook Tags:set operators,SQL Related Posts What are the different ways of transferring data from one database to another database? There are several ways available to transfer the data What are ACID properties? ACID properties The acronym ACID stands for Atomicity, Consistency, What are the types of Before Triggers available in SQL Server? SQL Server does not support BEFORE triggers. We can Leave a Reply Cancel reply Your email address will not be published. Required fields are marked *Comment Name * Email * Website Notify me of follow-up comments by email. Notify me of new posts by email. This site uses Akismet to reduce spam. Learn how your comment data is processed.