Alter table - Study guides, Class notes & Summaries

WGU D426 (v2) Revised 2024 The relationship that describes how one attribute's value can determine another's - ANSWER Functional Dependency An attribute determining the value of another attribute - ANSWER Determinant Unique and minimal attribute determining non-key attributes - ANSWER Candidate Key Defines and manages...

PRE1 Questions with complete solution 2024 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, ...

Question: 1 168 You need to load information about new customers from the NEW_CUST table into the tables CUST and CUST_SPECIAL. If a new customer has a credit limit greater than 10,000, then the details have to be inserted into CUST_SPECIAL. All new customer details have to be inserted into the CUST table. Which technique should be used to load the data most efficiently? A. external table B. the MERGE command C. the multitable INSERT command D. INSERT using WITH CHECK OPTION ...

WGU D427 Practice Test with Answer Key 2024. 1. Seattle, WA 98111 USA How many attributes are present in the address fragment? a. 1 b. 2 c. 3 d. 4 2. The Book table has the following columns: genre – varchar(20) pages – integer author_id – char(3) isbn_number – varchar(20) Which column should be designated at the primary key for the Book table? a. genre b. pages c. author_id d. isbn_number 3. The Book table has the following columns: genre – varchar(20) pages – in...

WGU D427 Practice Test with Answer Key 2024. 1. Seattle, WA 98111 USA How many attributes are present in the address fragment? a. 1 b. 2 c. 3 d. 4 2. The Book table has the following columns: genre – varchar(20) pages – integer author_id – char(3) isbn_number – varchar(20) Which column should be designated at the primary key for the Book table? a. genre b. pages c. author_id d. isbn_number 3. The Book table has the following columns: genre – varchar(20) pages – ...

The relationship (within the relation) that describes how the value of one attribute may be used to find the value of another attribute. Functional Dependency An attribute that can be used to find the value of another attribute in the relation. Determinant Value can be used to find the value of every other non-key attribute in the table. Unique and minimal. Candidate Key Define & manage database structures DDL Adding, deleting, and modifying data - Manipula...

WGU Course C170 - Data Management (Applications) Quizlet by Brian MacFarlane 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 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 A Which kin...

WGU D427 Practice Test with Answer Key 2024. 1. Seattle, WA 98111 USA How many attributes are present in the address fragment? a. 1 b. 2 c. 3 d. 4 2. The Book table has the following columns: genre – varchar(20) pages – integer author_id – char(3) isbn_number – varchar(20) Which column should be designated at the primary key for the Book table? a. genre b. pages c. author_id d. isbn_number 3. The Book table has the following columns: genre – varchar(20) pages – in...

WGU Course C170 - Data Management (Applications) Quizlet by Brian MacFarlane 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 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 A Which kin...

WGU Question and answers verified to pass 2024 WGU - D427 Data Management - Applications ZyBooks Labs 7 and 8 7.1 LAB - Alter Movie table The Movie table has the following columns: ID - positive integer Title - variable-length string Genre - variable-length string RatingCode - variable-length string Year - integer Write ALTER statements to make the following modifications to the Movie table: 1. Add a Producer column with VARCHAR data type (max 50 chars). 2. Remove ...