Subquery can return - Study guides, Class notes & Summaries

WGU C170 Data Management – Applications Questions and Answers Last Updated 2022 domain In data modeling, the construct used to organize and describe an attribute's set of possible values superkey An attribute or attributes that uniquely identify each entity in a table. Any composite key with this is also this. candidate key A minimal superkey; that is, a key that does not contain a subset of attributes that is itself a superkey entity integrity The property of a relational table that guara...

domain Answer- In data modeling, the construct used to organize and describe an attribute's set of possible values superkey Answer- An attribute or attributes that uniquely identify each entity in a table. Any composite key with this is also this. candidate key Answer- A minimal superkey; that is, a key that does not contain a subset of attributes that is itself a superkey entity integrity Answer- The property of a relational table that guarantees each entity has a unique value in a prim...

WGU C170 Data Management - Applications domain Correct Answer: In data modeling, the construct used to organize and describe an attribute's set of possible values superkey Correct Answer: An attribute or attributes that uniquely identify each entity in a table. Any composite key with this is also this. candidate key Correct Answer: A minimal superkey; that is, a key that does not contain a subset of attributes that is itself a superkey entity integrity Correct Answer: The proper...

SQL Commands Please take a look at this list and review any that seem unfamiliar: CREATE TABLE statements and data type assignments create table "tablename" ("column1" "data type", "column2" "data type", "column3" "data type"); Here are the most common Data types: char(size) Fixed-length character string. Size is specified in parenthesis. Max 255 bytes. varchar(size) Variable-length character string. Max size is specified in parenthesis. number(size) Number value with a...

A salesperson is authorized to sell many products and a product can be sold by many salespersons. Which kind of binary relationship does this scenario describe? A One-to-one B One-to-many C One-to-one binary D Many-to-many Correct answer- D Which kind of relationship is displayed in this entity-relationship diagram? A Many-to-many unary B Many-to-many binary C One-to-one unary D One-to-one binary Correct answer- A Which kind of relationship is displayed in this entity-relat...

WGU C170 Data Management – Applications domain Answer- In data modeling, the construct used to organize and describe an attribute's set of possible values superkey Answer- An attribute or attributes that uniquely identify each entity in a table. Any composite key with this is also this. candidate key Answer- A minimal superkey; that is, a key that does not contain a subset of attributes that is itself a superkey entity integrity Answer- The property of a relational table that guarantees ea...

domain Answer- In data modeling, the construct used to organize and describe an attribute's set of possible values superkey Answer- An attribute or attributes that uniquely identify each entity in a table. Any composite key with this is also this. candidate key Answer- A minimal superkey; that is, a key that does not contain a subset of attributes that is itself a superkey entity integrity Answer- The property of a relational table that guarantees each entity has a unique value in a prim...

ALL CORRECT ANSWERS ARE SHOWN Question 1 Selected Answer: Correct Answer: Which set operator would you use to display the employee IDs of employees hired after January 10, 2007 in the EMP table and employee IDs of employees who have held more than one position in the EMP_HIST table, eliminating any duplicate IDs? INTERSECT UNION Question 2 Selected Answers: Correct Answers: Which three statements concerning explicit datatype conversions are TRUE? (Choose three.) A character value may...

Which code returns the date in the format Friday, April 20th, 2019? DATE_FORMAT('2019-04-20', '%W, %M %D, %Y') DATE_FORMAT('2019-04-20', '%W, %M %D, %Y') Question 2 Selected Answer: Correct Answer: Which statement is NOT CORRECT? The management of data storage is more expensive than the purchase of storage hardware, which is why businesses opt for enterprise storage subsystems. Although SCSI has been a popular medium for connecting storage devices to servers and/or processors ...

WGU C170 Basic SQL, Top Exam Questions and answers, 100% Accurate, graded A+ An alias is especially useful when a table must be joined to itself in a(n) ___________________ query. recursive The ___________ condition is generally composed of an equality comparison between the foreign key and the primary key of related tables. join A database language enables the user to create database and table structures to perform basic data management chores. TRUE ______________________ is the proc...