Subquery - Study guides, Class notes & Summaries

UTA INSY 3304 - Exam 2 - Chapter 7&9 Latest 2023 Graded A Data definition language DDL Data manipulation language DML CREAT SCHEMA AUTHORIZATION Creates a database schema CREATE TABLE Creates a new table in the user's databse schema NOT NULL Ensures that a column will not have null values UNIQUE Ensures that a column will not have duplicate values PRIMARY KEY Defines a primary key for a table FOREIGN KEY Defines a foreign key for a table DEFAULT Defines a default value for a column ( whe...

ICT3612 Assignment 3 (COMPLETE ANSWERS) 2024 - DUE 15 July 2024 ;100% TRUSTED workings, explanations and solutions. for assistance Whats-App.......0.6.7..1.7.1..1.7.3.9 .......... Question 1 (2 marks) Which of the following is an aggregate expression that will find the oldest date in the invoiceDate column? 1. MIN(invoiceDate) 2. MAX(invoiceDate) 3. HIGH(invoiceDate) 4. LOW(invoiceDate) Question 2 (2 marks) Which of the following LIMIT clauses will return a maximum of five rows startin...

WGU D426 Objective Assessment V2 (Latest 2024/ 2025 Update) Data Management Foundations | Questions and Verified Answers|100% Correct| Grade A Q: SUBQUERY Sometimes nested query or inner query, which is a query within another SQL query Q: ALIAS Answer: Temporary name assigned to a column or table Q: Flattening Answer: Replaces a subquery with an equivalent join Q: Entity Answer: Person, place, product, concept, or activity Q: Relationship Answer: A st...

MySQL Exam Questions with Correct Answers A SELECT statement that includes aggregate functions is often called a/an ____________ query. - Answer-Summary All of the aggregate functions ignore null values, except for the _________ function. - Answer-COUNT By default, all duplicate values are included in the aggregate calculation, unless you specify the ______________ keyword - Answer-DISTINCT Write an aggregate expression for the number of entries in the vendor_name column - Answer-SELE...

The _____ data type is considered compatible with VARCHAR(35). Ans- CHAR(15) How many rows would be returned from a cross join of tables A and B, if A contains 8 rows and B contains 18? Ans- 144 Oracle uses the _____ function to extract the various parts of a date. Ans- TO_CHAR A(n) _____ join returns not only the rows matching the join condition (that is rows, with matching values in the commun columns) but also the rows with unmatched values. Ans- outer A _____ is a query inside ...

WGU CS1011 Sophia Introduction to Relational Databases Milestone 2 Retake Questions and Answers Score 20/25. 20/25  that's 80% RETAKE  20 questions were answered correctly. 4 questions were answered incorrectly. 1 question was skipped. These were marked incorrect. In each milestone, you may want or need to use the database and query tool to answer some of the questions. We suggest you open the tool in another browser tab while you are working on this assessment. Which of the fol...

Subquery correct answers A query inside another query. The nested query will execute first. Index correct answers A data structure that provides a way to retrieve data more quickly from a table based on values in a specific column. View correct answers A virtual table based on results from a query from one or more base tables. The bits and pieces, like numbers, characters or symbols with no relevance. correct answers Data A set of data with relevance. At a certain place in time, or f...

WGU D426 Pre- Assessment (Latest 2023/ 2023 Update) Data Management Foundations Exam| Questions and Verified Answers|100% Correct| Grade A Q: What is another name for a subquery? Answer: Nested query Q: Which operator is used to compare against a list of values when determining a match in a WHERE clause? Answer: IN Q: Which wildcard character is used to represent zero or more characters when searching for a specified pattern using a LIKE operator? Answer: % ...

WGU CS1011 Sophia Introduction to Relational Databases Milestone 2 Retake Questions and Answers Score 20/25. 20/25  that's 80% RETAKE  20 questions were answered correctly. 4 questions were answered incorrectly. 1 question was skipped. These were marked incorrect. In each milestone, you may want or need to use the database and query tool to answer some of the questions. We suggest you open the tool in another browser tab while you are working on this assessment. Which of the fol...

ICT3612 Assignment 3 (COMPLETE ANSWERS) 2024 - DUE 15 July 2024 ;100% TRUSTED workings, explanations and solutions. for assistance Whats-App.......0.6.7..1.7.1..1.7.3.9 .......... Question 1 (2 marks) Which of the following is an aggregate expression that will find the oldest date in the invoiceDate column? 1. MIN(invoiceDate) 2. MAX(invoiceDate) 3. HIGH(invoiceDate) 4. LOW(invoiceDate) Question 2 (2 marks) Which of the following LIMIT clauses will return a maximum of five rows starting...