Subquery can return - Study guides, Class notes & Summaries

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...

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...

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...

S307 Final Exam Study Guide with Complete Solutions join - Correct Answer - relational operation that causes two or more tables with a common domain to be combined into a single table or view - can use "JOIN" or "INNER JOIN"..."ON" - common columns appear redundantly in the result table - can use "=", ">","<" ,"<>" equi-join - Correct Answer - join in which the joining condition is based on equality between values in the common columns natural join - Correct A...

WGU C170 SQL Data Management Exam Questions Terms with Accurate Answers 2024/2025 cross join - correct answer cartesian product of T1 and T2 USING - correct answer returns only rows with matching values in column indicated ON - correct answer returns rows that meet specified join condition subquery can return: - correct answer single value (1 column, 1 row) list of values (1 column, multiple rows) virtual table (multicolumn, multirow) union - correct answer combines 2 simila...

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 with the eleventh row in the result set? 15 ICT3612/102/0/2024 1. LIMIT 10, <= 5 2. LIMIT 11, <= 5 3. LIMIT 10, 5 4. LIMIT 11, 5 Question 3 (2 marks) When coded in a...

A subquery can return a result set, a column of one or more rows, or a single ______________________. - Answer- cell In many cases, a subquery can be restated as a/an _____________ - Answer- join A correlated subquery is a subquery that is executed once for each ______________________ in the outer query. - Answer- row, row processed When you code a subquery in a FROM clause, it returns a result set that can be referred to as an _____________________________ view. - Answer- inline If ...

ORDER BY must be placed at the end of the SQL statements When using ORDER BY reference, the column name in force is whatever column name exists in the first SELECT statement An INDEX object is built on one or more columns in a table The INDEX stores data from its table's columns on which it is built and presorts that data in order to speed future queries When the DML statements INSERT, UPDATE, and DELETE are executed on an indexed table the indexed data is chang...

WGU C170 Data Management Problem Solving Exam Questions and With Distinction level Marking scheme updated 2024/2025 inner join - correct answer A join operation in which only rows that meet a given criterion are selected. The most common type of join outer join - correct answer A join operation that produces a table in which all unmatched pairs are retained; unmatched values in the related table are left null c - correct answer A join operation that returns the Cartesian product of two ...

join - relational operation that causes two or more tables with a common domain to be combined into a single table or view - can use "JOIN" or "INNER JOIN"..."ON" - common columns appear redundantly in the result table - can use "=", ">","<" ,"<>" equi-join - join in which the joining condition is based on equality between values in the common columns natural join - equi-join in which one of the duplicate columns is eliminated in the result table outer join ...