Sql commands - Study guides, Class notes & Summaries

WGU D426 Objective Assessment (Latest 2023/ 2023 Update) Data Management Foundations | Questions and Verified Answers|100% Correct| Grade A Q: The storage manager translates Answer: the query processor instructions into low-lev- el file-system commands that modify or retrieve data Q: Database sizes range from Answer: from megabytes to many terabytes, Q: the storage manager uses what to quickly locate data Answer: indexes Q: Metadata is Answer: data about the...

Schema The definition of how data in a database will be organized. - Create - Read - Update - Delete The basis of interacting with databases can be defined using the CRUD acronym. What does CRUD stand for? Brainpower 0:02 / 0:15 DATE: YYYY-MM-DD DATETIME: YYYY-MM-DD HH:MM:SS What is the DATE datatype syntax? What is the DATETIME datatype syntax? It will have 3 numbers before the decimal and 2 after. What does DECIMAL(3,2) indicate? Stored Procedures ...

DAD 220 Module 3 Major Activity Database Documentation Questions and Answers Updated 2024. Overview Complete these steps as you work through the directions for this activity. Replace the bracketed text with your screenshots and brief explanations of the work they show. Each screenshot and its explanation should be sized to approximately one quarter of the page, with the description written below the screenshot. Follow these rules for each of the prompts and questions below. Review the exam...

WGU C172 Objective Assessment Exam (New 2023/ 2024 Update) Network and Security Foundations| Questions and Verified Answers| 100% Correct |Graded A QUESTION What type of exploit is occurring when an attacker attempts to hide their identity while communicating on a network? Answer: Spoofing QUESTION When an attacker is inserting text that is too large to fit within a region of memory, what type of attack are they trying to perform? Answer: Buffer overflow ...

WGU D426 Data Management Foundations Final Exam (Latest 2023/ 2023 Update) | Questions and Verified Answers|100% Correct| Grade A Q: Architecture Answer: Describes the internal components AND the relationships between components. Q: Query Processor Answer: Interprets queries, creates a plan to modify the database or retrieve the data, and returns query results to the application. Performs query optimization. Q: Query Optimization Answer: Ensures efficient instr...

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...

The SELECT statement is used to select data from a database. The result is stored in a result table, called the result-set. correct answers SELECT column_name,column_name FROM table_name; SELECT * FROM table_name; The SELECT DISTINCT statement is used to return only distinct (different) values correct answers SELECT DISTINCT column_name,column_name FROM table_name; The WHERE clause is used to extract only those records that fulfill a specified criterion. correct answers SELECT colu...

ISSC262 MidTerm Exam - Results Attempt 1 of 1 Written Aug 30, 2023 8:18 PM - Aug 30, 2023 8:34 PM Attempt Score 88 / 100 - 88 % Overall Grade (Highest Attempt) 88 / 100 - 88 % stion 1 4 / 4 po Sniffing can be used to ___________. Question options: troubleshoot connections investigate malware detect abnormal behavior All of the above PSK mode is ___________. Question options: a pre-salted key a pre-shared key more secure enterprise ready The characteristics of Ethernet include a...

CHAPTER SEVEN SQL FOR DATABASE CONSTRUCTION AND APPLICATION PROCESSING Prepared By David J. Auer Western Washington University DAVID M. KROENKE AND DAVID J. AUERScholarStockChapter Seven – SQL For Database Construction and Application Processing  CHAPTER OBJECTIVES  To be able to create and manage table structures using SQL statements  To understand how referential integrity actions are implemented in SQL statements  To be able to create and use SQL constraints  To und...

The SELECT statement is used to select data from a database. The result is stored in a result table, called the result-set. correct answers SELECT column_name,column_name FROM table_name; SELECT * FROM table_name; The SELECT DISTINCT statement is used to return only distinct (different) values correct answers SELECT DISTINCT column_name,column_name FROM table_name; The WHERE clause is used to extract only those records that fulfill a specified criterion. correct answers SELECT colu...