Sql commands - Study guides, Class notes & Summaries

COMPUTER PROGRAMMING [ MYSQL COMMANDS ] Test Questions with Answers ESCRIBE [table name]; - Answer-display the table structure SELECT * FROM [table name]; - Answer-command to show all data in a table SELECT * FROM [table name] WHERE [field name] = "whatever"; - Answer-how certain selected rows with the value "whatever" INSERT INTO [table name] (field1, field 2, ...) values (value1, value2,...); - Answer-inserting another filed into the table SELECT * FROM [table name] ORDER BY [...

SQL COMMANDS

WGU C175 OBJECTIVE ASSESSMENT PRACTICE TEST ANSWER 1. The Entity-Relationship (E-R) model is _____. a. a diagramming technique that describes record structures (i.e. the fields that make up the records of a file) b. an alternative to indexing and hashing as a means for providing direct access in files c. a diagramming technique that describes entities, their attributes, and the relationships between them d. an alternative to file design in which attributes are used instead of fields e. a diagram...

CNIT 272 Exam II Questions and Answers (Graded A)CNIT 272 Exam II Questions and Answers (Graded A)CNIT 272 Exam II Questions and Answers (Graded A) What is SQL script? - ANSWER-A stored file containing one or more SQL commands that can be executed as a unit. What are the uses of SQL script? - ANSWER--Store useful SQL commands for future execution -Generate and execute SQL commands as a unit -Display messages to the user (ex: at signon) -Allow user input into stored SQL statements -Ass...

True & False The objective of SOL performance tuning on the client side is to generate an SOL query that returns the correct answer in the least amount of time, using the maximum amount of resources on the server side All database transactions must display at least the properties of Atomicity, consistency, convenience, and isolation Database recovery techniques are based on the isolation transaction property which indicate that the data used during execution of a transaction cannot...

SQL COMMANDS

DATA MANAGEMENT - APPLICATIONS D427 - MYSQL - SQL PROGRAMING - INTERMEDIATE LEVEL (This question set is for a test that requires actual programming from memory, you can't have notes, and you can't look it up, you have to do the entire exam from memory. Nearly 1/3 of exam is multiple choices, the other 2/3 questions are programming simulations. All answers on the real exam may be case sensitive due to key words being commands. Tip: Don't use the write in method, the answers are too long and co...

INF3707 Assignment 3 2023.100% CORRECT questions, answers, workings and explanations. Whatsapp +25479 093 7672 for assistance. ........... Question 1: Chapter 6 (11 marks) 1.1 Create a sequence that generates integers starting with the value 5. Each value should be three less than the previous value generated. The lowest value should be 0, and the sequence should not be allowed to cycle. Name the sequence MY_FIRST_SEQ. (5 marks) 1.2 Issue a SELECT statement that displays NEXTVAL for MY_FIRST_S...

A Data Analyst has joined your team, however, he is not familiar with Databricks SQL. Which of the following steps will allow him to locate Data Explorer? A) Go to SQL Warehouse, and click on the "Data Explore" button B) Go to SQL Editor, next to Schema Explore, and click on Data Explore to access Data Explorer C)Click "Data" in the sidebar menu to access the Data Explorer D) On Databricks SQL, landing page, under SQL, click on "Data Explore" next to "SQL Query Editor" to access Da...

What is a broad definition of data? Raw facts that are captured on printed or digital media What are data? Facts that are collected and stored in a database system What is a determining characteristic of unstructured data? It does not follow a data model. Which is true about flat files? They contain no internal hierarchical organization. Which technology has no internal hierarchy? Flat files How were data retrieved before database management systems? Sequ...