Bitmap index Guides d'étude, Notes de cours & Résumés

What is a path? - A path is a sequence of directories used to reference a file. They can be relative or absolute. Why do we need file systems? - 1. Locate free storage space 2. Store information in a persistent way (survives process termination) 3. Allow more than one process to access the information store concurrently 4. Find information by human-accessible identifiers 5. Protect data from unauthorized use 6. Identifying types of data stored and programs that can read the data ...

INF3707 Past Exams.100% CORRECT questions, answers, workings and explanations. Whatsapp +25479 093 7672 for assistance. May 2019 Section A Question 1 1. [40 Marks] 1.1. Which of the following is true of the SQL query given below? (Choose the best answer) SELECT col1, col2 FROM tab1 WHERE col1 = ‘A’ ORDER BY col2 DESC, col1; a. It will display the row which has the col1 value as ‘A’ ordered by the col1 in descending order and then col2 in the descending order. b. The ORDER BY...

Access plan - Answer-A set of instructions generated at application compilation time that is created and managed by a DBMS. The access plan predetermines how an application's query will access the database at run time. Alias - Answer-An alternative name for a column or table in a SQL statement. ALTER TABLE - Answer-The SQL command used to make changes to table structure. When the command is followed by a keyword (ADD or MODIFY), it adds a column or changes column characteristics. AREA - ...

Access plan - ANSWER A set of instructions generated at application compilation time that is created and managed by a DBMS. The access plan predetermines how an application's query will access the database at run time. Alias - ANSWER An alternative name for a column or table in a SQL statement. ALTER TABLE - ANSWER The SQL command used to make changes to table structure. When the command is followed by a keyword (ADD or MODIFY), it adds a column or changes column characteristics. AREA ...

COP4600 - FINAL EXAM Exam Questions With Verified Solutions What is a path? - answerA path is a sequence of directories used to reference a file. They can be relative or absolute. Why do we need file systems? - answer1. Locate free storage space 2. Store information in a persistent way (survives process termination) 3. Allow more than one process to access the information store concurrently 4. Find information by human-accessible identifiers 5. Protect data from unauthorized use 6. Iden...

COP4600 - FINAL EXAM Questions With 100% Correct Answers 2024/2025 What is a path? - answerA path is a sequence of directories used to reference a file. They can be relative or absolute. Why do we need file systems? - answer1. Locate free storage space 2. Store information in a persistent way (survives process termination) 3. Allow more than one process to access the information store concurrently 4. Find information by human-accessible identifiers 5. Protect data from unauthorized use ...

COP4600 - FINAL EXAM Questions With 100% Correct Answers 2024/2025 What is a path? - answerA path is a sequence of directories used to reference a file. They can be relative or absolute. Why do we need file systems? - answer1. Locate free storage space 2. Store information in a persistent way (survives process termination) 3. Allow more than one process to access the information store concurrently 4. Find information by human-accessible identifiers 5. Protect data from unauthorized use ...

COP4600 - FINAL EXAM Questions With 100% Correct Answers 2024/2025 What is a path? - answerA path is a sequence of directories used to reference a file. They can be relative or absolute. Why do we need file systems? - answer1. Locate free storage space 2. Store information in a persistent way (survives process termination) 3. Allow more than one process to access the information store concurrently 4. Find information by human-accessible identifiers 5. Protect data from unauthorized use ...

C170 QUESTIONS WITH SOLUTIONS 2023 Access plan A set of instructions generated at application compilation time that is created and managed by a DBMS. The access plan predetermines how an application's query will access the database at run time. Alias An alternative name for a column or table in a SQL statement. Brainpower Read More Previous Play Next Rewind 10 seconds Move forward 10 seconds Unmute 0:05 / 0:15 Full screen ALTER TABLE The SQL command used to make ...

Lesson 5 Indexes (FLASH CARDS) - C170 - Database Management Applications (WGU) access plan A set of instructions generated at application compilation time that is created and managed by a DBMS. The access plan predetermines how an application's query will access the database at run time. algorithms A process or set of operations in a calculation. automatic query optimization A method by which a DBMS finds the most efficient access path for the execution of a query. B-tree ind...