What is exception? What are the types of exceptions?
What is indexing in sql and its types?
What is nvarchar in sql?
What is use of trigger?
What is package in pl sql with an examples?
query to retrive the employees whose sal is greater than avg sal
What is difference between sql and oracle?
What operators deal with null?
What are the types of records?
how are mysql timestamps seen to a user? : Sql dba
If we declare constraints Unique and Not null on a single column then it will act as a Primary key, so what is the use of primary key??
What is the difference between sql, mysql and sql server?
How long does it take to learn pl sql?