Answered: If there are several operators with…

If there are several operators with same priority in an arithmetic expression of an SQL statement then the priority will be For division for multiplication From left to right For addition

Programming with Microsoft Visual Basic 2017

8th Edition

ISBN:9781337102124

Author:Diane Zak

Publisher:Diane Zak

Chapter12: Database Queries With Sql

Section: Chapter Questions

Problem 9RQ

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write SQL code that involve calculation by using if else statement
PATHS is a table that contains information about paths on a number line. The structure of PATHS is as follows, where x1 and x2 represent that there is a path from Coordinate x1 to Coordinate x2 (You can't move from Coordinate x2 to Coordinate x1 ). NAME ΤΥΡE NULLABLE X1 INT FALSE X2 INT FALSE Problem Please write an SQL statement that returns the beginning and end point of each path in PATHS . Sort them by the value of the beginning point in ascending order. Constraints • In the case where a direct path from Coordinate a to Coordinate b is available, no path from Coordinate b to Coordinate a will be given. |x1-x2| = 1 • No path will overlap with one another. Example Suppose that PATHS is as follows: x1 x2 1 2 2 3 4 7 7 6 This table can be visualized as follows: START END END START 7 8. 9 Therefore, your SQL statement must return the following: start end 1 4 8 6
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se SQL program Server2014 ... A company undertakes a number of projects, the employees work on it, and during the process of analyzing the system we found the following points: The company is made up of a number of departments (the department number, which is a single number, the name of the department, the department's website) There are employees (the employee's number is a single number, his name, address, salary, and job) The employee belongs to one department only, and each department has more than one employee. There are projects (the project number, which is a single number, the name of the project, the project site) Each project has a specific department that it manages, and the department may manage it more than one project. More than one employee works in the project, and the employee may work in more than one project. Each employee has a number of work hours per week in each project. Required: 4. Create a Trigger that indicates the end of the entry operation on any of…
SQL Query For Given Problem
Database design Objectives: To understand and be able to write simple SQL queries Instruction: Refer to HR schema to answer the questions Include screenshot of your code and output of each question 1. Write SQL query that displays the last name and salary of employees earning more than $12,000. 2. Write SQL query that displays the last name and department number for employee number 176. 3. Write SQL query to display the last name and salary for all employees whose salary is not in the range $5,000 through $12,000. 4. Write SQL query to display the last name, job ID, and hire date for employees with the last names of Matos and Taylor. Order the query in ascending order by hire date. 5. Display the last name and department ID of all employees in departments 20 or 50 in ascending alphabetical order by name. 6. Write a query that displays the last names of all employees who have both an “a” and an “e” in their last name. 7. Write a query to display the employee…
Databases are used to store different kinds of data such as names, currency, text, graphics, etc. Determining the appropriate data type for each attribute is important for database performance, storage size, and conducting accurate analysis on databases. As with other programming languages, SQL supports many data types. However, you will mostly use two categories while writing SQL queries: Characters, and numbers. Consider the following standard SQL data types: Characters char varchar Numbers integer decimal float Different data types could be used for the same attribute. For example, both char and varchar could be used to store “names” in a database. Examine the attributes for the Characters and Numbers data types. Using specific examples, compare data types for each category. For example, why you should choose char rather than varchar or opposite?
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SQL is a declarative language means that (a) it allows describing the algorithm to carry out the desired query (b) variables are declared (c) it allows describing the desired query but not the algorithm to carry out it (d) none of the answers are correct
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