Below are the must practice questions on database testing interviewLists------1.subqueries2.different joins and examples on that3.database statements like create database,create table and drop table etc4.concepts of primary key,foreign key,unique key and view and index5.Examples of Select, Insert, Delete, Alter and Update SQL statements.6.Stored procedure basics with and without parameter7.practie basic queries and 8.Min and maximum salary and 2nd 3rd min salary etc9.how did you test database 10.how data integrity you checked?11.updata query and the usage like data creation we did in our testing most of the time12.peaked into the stored procedure to check for error messages and try to test to recreate the same error message in the application13.self join is asked multiple times14.union and union all15.some example table name you can be asked to tell to check whether you have worked or not16.