Mention the difference between clustered and a non-clustered index?

Correct Answer: SELECT SERVERPROPERTY ('productversion'), SERVERPROPERTY ('productlevel') and SERVERPROPERTY ('edition')

Correct Answer: SQL Server agent plays an important role in the day-to-day tasks of a database administrator (DBA) Its purpose is to ease the implementation of tasks for the DBA, with its full- function scheduling engine, which allows you to schedule your own jobs and scripts

Correct Answer: This command is used when a large processing of data has occurred If any large amount of deletions, any modifications, or Bulk Copy into the tables has occurred, it has to update the indexes to take these changes into account UPDATE_STATISTICS updates the indexes on these tables accordingly

Correct Answer: Every Analysis server has a repository to store metadata for the objects like cubes, data sources etc It?s by default stored in a MS Access database which can be also migrated to a SQL Server database

Correct Answer: It is a way to convert the original text of the stored procedure into encrypted form The stored procedure gets obfuscated and the output of this is not visible to CREATE PROCEDURE Abc WITH ENCRYPTION AS << SELECT statement>> GO

Correct Answer: Recursive query can be create in SQL using stored procedure but you can also use CTE (Common table expression) It might be also worth asking about performance as CTE is not always very fast

Correct Answer: Trigger allows us to execute a batch of SQL code when an insert, update or delete command is executed against a specific table Triggers are special types of stored procedures that are defined to execute automatically in place of or after data modifications They can be executed automatically on the insert, delete and update operation

Correct Answer: SELECT *FROM Employees WHERE EmpName like ?M%?

Correct Answer: An SQL statement is a string of characters that conforms to the syntax and format specified in the international standard A query is a statement that returns a record-set

Correct Answer: PL/SQL tables are scalar arrays that can be referenced by a binary digit They can be used to store values for later queries and calculations