Data Management Question and answers correctly solved 2024
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Course
WGU D427
Institution
WGU D427
Data Management Question and answers correctly solved 2024 Data Management Foundations Pre Test 2
1. A record consists of a ____.
a. character
b. collection of related records
c. set of one or more fields
d. group of files
C
2. A DBMS performs several important functions that guarantee...
Data Management - Applications - D427
Create a data type with a positive value
UNSIGNED
Designating a foreign key in CREATE TABLE statement
FOREIGN KEY (ColumnName)
REFERENCES Tablename(ColumnName),
Command to add a column to an existing table
ALTER TABLE TableName
ADD COLUMN ColumnName DATATYPE;
SQL statement to create a view name Myview that contains X, Y, Z columns
from the Maintable table.
CREATE VIEW Myview AS
SELECT X, Y, Z
FROM Maintable;
SQL statement to delete the view named Myview
, DROP VIEW Myview;
SQL statement to modify the Test table to make the ID column the primary
key
ALTER TABLE Test
ADD PRIMARY KEY (ID);
Write a SQL statement to designate the Year column in the Movie table as a
foreign key to the Year column in the YearStats table.
ALTER TABLE Movie
ADD FOREIGN KEY (Year)
REFERENCES YearStats(Year);
Write a SQL statement to create an index named idx_year on the Year
column of the Movie table.
CREATE INDEX idx_year
ON Movie (Year);
SQL statement to add a new row to a table
INSERT INTO Table (column1, column2,...)
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