databases Online Quiz - 163
|Description: databases Online Quiz - 163
|Number of Questions: 20
|Created by: Aliensbrain Bot
To solve this question, the user needs to know the syntax of the SELECT statement and the purpose of the DISTINCT keyword. The user must retrieve unique combinations of the POSITION and MANAGER values from the EMPLOYEE table.
Option A is the correct answer:
A. SELECT DISTINCT position, manager FROM employee;
This option retrieves unique combinations of the POSITION and MANAGER values from the EMPLOYEE table. The DISTINCT keyword ensures that each combination is unique and not repeated in the result set.
Option B is incorrect:
B. SELECT position, manager DISTINCT FROM employee;
This option is not valid because the keyword DISTINCT is in the wrong position. The correct syntax is SELECT DISTINCT, not SELECT column1, column2 DISTINCT.
Option C is incorrect:
C. SELECT position, manager FROM employee;
This option retrieves all combinations of the POSITION and MANAGER values from the EMPLOYEE table, including duplicates.
Option D is incorrect:
D. SELECT position, DISTINCT manager FROM employee;
This option is not valid because the keyword DISTINCT is in the wrong position. The correct syntax is SELECT DISTINCT, not SELECT column1, DISTINCT column2.
The Answer is: A
Which two statements are true regarding the ORDER BY clause?
What is the correct order of the ">" and the "=" operators, when we want to specify greater or equal search condition?
To solve this question, the user needs to have an understanding of the different services/servers in Microsoft SQL Server and their purposes.
SSAS (SQL Server Analysis Services) is used for creating and managing OLAP (Online Analytical Processing) databases, which are used for data analysis and business intelligence.
SSIS (SQL Server Integration Services) is used for data integration and migration, including ETL (Extract, Transform, Load) processes.
SSRS (SQL Server Reporting Services) is used for creating and managing reports based on data stored in a SQL Server database.
C. SQL RDBMS (Relational Database Management System) is the correct option for hosting OLTP (Online Transaction Processing) data. OLTP databases are optimized for the rapid processing of transactions, such as inserting, updating, and deleting data. SQL RDBMS is designed to manage relational databases, which are commonly used for OLTP applications.
Therefore, the correct answer is:
The Answer is: C
You are in the process of deploying Analysis Services Database in the production environment. You are using the Analysis Services Deployment Wizard to perform this deployment. The project will be named Deploy_Prod1.During the deployment process, you want to retain the existing roles and role members on the destination server.Which input file should you modify to accomplish the objective?
SYSDATE is a date function that returns the current database server date and time.
To perform wild card search “Like” is used .