A GUIDE TO SQL
9th Edition
ISBN: 9781305897397
Author: Pratt
Publisher: CENGAGE L
expand_more
expand_more
format_list_bulleted
Expert Solution & Answer
Chapter 8, Problem 3RQ
Explanation of Solution
Adding months to a date in Oracle:
- User can add the months to a date using “ADD_MONTHS” function in Oracle.
- Syntax of “ADD_MONTHS” function is,
ADD_MONTHS(Date, integer_value)
- From the given syntax, the “Date” represents a date time value and the “integer_value” represents the integer number.
Example:
The example of the “ADD_MONTHS” function in query concept is given below:
SELECT STUDENT_ID, ADD_MONTHS(EXAM_DATE, 2) AS MODIFIED_DATE;
The above query is used to display student ID and two months added exam date for each student from “STUDENT” table.
- From the given query, the “ADD_MONTHS” function is used to add two months for each exam date in the given “STUDENT” table and the added month is represented by “MODIFIED_DATE” using “AS” operator.
Adding months to a date in Access:
- User can add the months to a date using “DATEADD” function in SQL Server.
- Syntax of “DATEADD” function is,
DATEADD("interval", integer_value, date)
- The given syntax contains three arguments.
- The “interval” represents the interval of time to be added.
- If the user wants add a month to date, then interval will be specified by “m”, “mm” or “month”.
- For year, the interval will be specified by “year”, “yyyy” or “yy”.
- For day, the interval will be specified by “day”, “dy” or “y”.
- The “integer_value” represents the integer number.
- The “Date” represents a date time value.
- The “interval” represents the interval of time to be added.
Example:
The example of the “DATEADD” function in query concept is given below:
SELECT STUDENT_ID, DATEADD("m", 2, EXAM_DATE) AS MODIFIED_DATE;
The above query is used to display student ID and two months added exam date for each student from “STUDENT” table...
Explanation of Solution
Adding days to a date:
- User can add a number of days to a date without using any function.
- User can add the number of days to a given date by simply placing addition operator with given integer value.
Example:
The example for adding a number of days to a date...
Explanation of Solution
Compute the number of days between two dates:
User can compute the number of days between two ...
Expert Solution & Answer
Trending nowThis is a popular solution!
Students have asked these similar questions
Explian thiS C program
#include<stdio.h>
int countSetBits(int n) { int count = 0; while (n) { count += n & 1; n >>= 1; } return count;}
int main() { int num; printf("Enter a number: "); scanf("%d", &num); printf("Output: %d units\n", countSetBits(num)); return 0;}
Please provide the Mathematica code
Explian this C program code.
#include <stdio.h>
void binary(unsigned int n) {
if (n /2!=0) {
binary(n /2);
}
printf("%d", n %2);
}
int main() {
unsignedint number =33777;
unsignedchar character ='X';
printf("Number: %u\n", number);
printf("Binary: ");
binary(number);
printf("\nDecimal: %u\nHexadecimal: 0x%X\n\n", number, number);
printf("Character: %c\n", character);
printf("ASCII Binary: ");
binary(character);
printf("\nASCII Decimal: %u\nASCII Hexadecimal: 0x%X\n", character, character);
return0;
}
Chapter 8 Solutions
A GUIDE TO SQL
Ch. 8 - Prob. 1RQCh. 8 - Prob. 2RQCh. 8 - Prob. 3RQCh. 8 - Prob. 4RQCh. 8 - Prob. 5RQCh. 8 - Prob. 6RQCh. 8 - Prob. 7RQCh. 8 - Prob. 8RQCh. 8 - Prob. 9RQCh. 8 - In PL/SQL, how do you assign variables the same...
Ch. 8 - Prob. 11RQCh. 8 - Prob. 12RQCh. 8 - Prob. 13RQCh. 8 - Prob. 14RQCh. 8 - Prob. 15RQCh. 8 - Prob. 16RQCh. 8 - Prob. 17RQCh. 8 - Prob. 18RQCh. 8 - Prob. 19RQCh. 8 - Prob. 20RQCh. 8 - Prob. 21RQCh. 8 - Prob. 22RQCh. 8 - Prob. 1TDCh. 8 - Prob. 2TDCh. 8 - Prob. 3TDCh. 8 - Prob. 4TDCh. 8 - Prob. 5TDCh. 8 - Prob. 6TDCh. 8 - Prob. 7TDCh. 8 - Prob. 8TDCh. 8 - Prob. 9TDCh. 8 - Prob. 10TDCh. 8 - Prob. 1CATCh. 8 - Prob. 2CATCh. 8 - Prob. 3CATCh. 8 - Prob. 4CATCh. 8 - Prob. 5CATCh. 8 - Prob. 6CATCh. 8 - Prob. 7CATCh. 8 - Prob. 9CATCh. 8 - Prob. 1SCGCh. 8 - Prob. 2SCGCh. 8 - Prob. 3SCGCh. 8 - Prob. 4SCGCh. 8 - Prob. 5SCGCh. 8 - Prob. 6SCGCh. 8 - Prob. 7SCGCh. 8 - SQL includes many numerical functions. Two of...
Knowledge Booster
Similar questions
- Design a dynamic programming algorithm for the Longest Alternating Subsequence problem described below: Input: A sequence of n integers Output: The length of the longest subsequence where the numbers alternate between being larger and smaller than their predecessor The algorithm must take O(n²) time. You must also write and explain the recurrence. Example 1: Input: [3, 5, 4, 1, 3, 6, 5, 7, 3, 4] Output: 8 ([3, 5, 4, 6, 5, 7, 3, 4]) Example 2: Input: [4,7,2,5,8, 3, 8, 0, 4, 7, 8] Output: 8 ([4, 7, 2, 5, 3, 8, 0,4]) (Take your time with this for the subproblem for this one)arrow_forwardDesign a dynamic programming algorithm for the Coin-change problem described below: Input: An amount of money C and a set of n possible coin values with an unlimited supply of each kind of coin. Output: The smallest number of coins that add up to C exactly, or output that no such set exists. The algorithm must take O(n C) time. You must also write and explain the recurrence. Example 1: Input: C24, Coin values = = [1, 5, 10, 25, 50] Output: 6 (since 24 = 10+ 10+1+1 +1 + 1) Example 2: Input: C = 86, Coin values = [1, 5, 6, 23, 35, 46, 50] Output: 2 (since 86 = 46+35+5)arrow_forwardDesign a dynamic programming algorithm for the Longest Common Subsequence problem de- scribed below Input: Two strings x = x1x2 xm and y = Y1Y2... Yn Output: The length of the longest subsequence that is common to both x and y. . The algorithm must take O(m n) time. You must also write and explain the recurrence. (I want the largest k such that there are 1 ≤ i₁ < ... < ik ≤ m and 1 ≤ j₁ < ... < jk ≤ n such that Xi₁ Xi2 Xik = Yj1Yj2 ··· Yjk) Example 1: Input: x = 'abcdefghijklmnopqrst' and y = 'ygrhnodsh ftw' Output: 6 ('ghnost' is the longest common subsequence to both strings) Example 2: Input: x = 'ahshku' and y = ‘asu' Output: 3 ('asu' is the longest common subsequence to both strings)arrow_forward
- Design a dynamic programming algorithm for the problem described below Input: A list of numbers A = = [a1,..., an]. Output: A contiguous subsequence of numbers with the maximum sum. The algorithm must take O(n) time. You must also write and explain the recurrence. (I am looking for an i ≥ 1 and k ≥ 0 such that a + ai+1 + ···ai+k has the largest possible sum among all possible values for i and k.) Example 1: Input: A[5, 15, -30, 10, -5, 40, 10]. Output: [10, 5, 40, 10] Example 2: Input: A = [7, 5, 7, 4, -20, 6, 9, 3, -4, -8, 4] Output: [6,9,3]arrow_forwardDesign a dynamic programming algorithm for the Longest Increasing Subsequence problem described below: Input: A sequence of n integers Output: The length of the longest increasing subsequence among these integers. The algorithm must take O(n²) time. You must also write and explain the recurrence. Example 1: Input: [5, 3, 6, 8, 4, 6, 2, 7, 9, 5] Output: 5 ([3, 4, 6, 7, 9]) Example 2: Input: [12, 42, 66, 73, 234, 7, 543, 16] Output: 6 ([42, 66, 73, 234, 543])arrow_forwardDesign a dynamic programming algorithm for the Subset Sum problem described below: Input: A set of n integers A and an integer s Output: A subset of A whose numbers add up to s, or that no such set exists. The algorithm must take O(n·s) time. You must also write and explain the recurrence. Example 1: Input: A = {4, 7, 5, 2, 3}, s = 12 Output: {7,2,3} Example 2: Input: A{4, 7, 5,3}, s = 6 Output: 'no such subset'arrow_forward
- TECNOLOGIE DEL WEB 2023/2023 (VER 1.1) Prof. Alfonso Pierantonio 1. Project Requirements The project consists in designing and implementing a Web application according to the methodology and the technologies illustrated and developed during the course. This document describe cross-cutting requirements the application must satisfy. The application must be realized with a combination of the following technologies: PHP MySQL HTML/CSS JavaScript, jQuery, etc templating The requirements are 2. Project size The application must have at least 18 SQL tables The number of SQL tables refers to the overall number of tables (including relation normalizations). 3. Methodology The application must be realized by adopting separation of logics, session management, and generic user management (authentication/permissions). Missing one of the above might correspond to a non sufficient score for the project. More in details: 3.1 Separation of Logics The separation of logics has to be realizse by using…arrow_forwardWrite a C program to calculate the function sin(x) or cos(x) using a Taylor series expansion around the point 0. In other words, you will program the sine or cosine function yourself, without using any existing solution. You can enter the angles in degrees or radians. The program must work for any input, e.g. -4500° or +8649°. The function will have two arguments: float sinus(float radians, float epsilon); For your own implementation, use one of the following relations (you only need to program either sine or cosine, you don't need both): Tip 1: Of course, you cannot calculate the sum of an infinite series indefinitely. You can see (if not, look in the program) that the terms keep getting smaller, so there will definitely be a situation where adding another term will not change the result in any way (see problem 1.3 – machine epsilon). However, you can end the calculation even earlier – when the result changes by less than epsilon (a pre-specified, sufficiently small number, e.g.…arrow_forwardWrite a C program that counts the number of ones (set bits) in the binary representation of a given number. Example:Input: 13 (binary 1101)Output: 3 unitsarrow_forward
- I need help to resolve or draw the diagrams. thank youarrow_forwardYou were requested to design IP addresses for the following network using the addressblock 166.118.10.0/8, connected to Internet with interface 168.118.40.17 served by the serviceprovider with router 168.118.40.1/20.a) Specify an address and net mask for each network and router interface in the table provided. b) Give the routing table at Router 1.c) How will Router 1 route the packets with destinationi) 168.118.10.5ii) 168.118.10.103iii) 168.119.10.31iii) 168.118.10.153arrow_forwardI would like to get help to draw an object relationship diagram for a typical library system.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
A Guide to SQLComputer ScienceISBN:9781111527273Author:Philip J. PrattPublisher:Course Technology Ptr
Database Systems: Design, Implementation, & Manag...Computer ScienceISBN:9781285196145Author:Steven, Steven Morris, Carlos Coronel, Carlos, Coronel, Carlos; Morris, Carlos Coronel and Steven Morris, Carlos Coronel; Steven Morris, Steven Morris; Carlos CoronelPublisher:Cengage Learning
Database Systems: Design, Implementation, & Manag...Computer ScienceISBN:9781305627482Author:Carlos Coronel, Steven MorrisPublisher:Cengage Learning
A Guide to SQL
Computer Science
ISBN:9781111527273
Author:Philip J. Pratt
Publisher:Course Technology Ptr
Database Systems: Design, Implementation, & Manag...
Computer Science
ISBN:9781285196145
Author:Steven, Steven Morris, Carlos Coronel, Carlos, Coronel, Carlos; Morris, Carlos Coronel and Steven Morris, Carlos Coronel; Steven Morris, Steven Morris; Carlos Coronel
Publisher:Cengage Learning
Database Systems: Design, Implementation, & Manag...
Computer Science
ISBN:9781305627482
Author:Carlos Coronel, Steven Morris
Publisher:Cengage Learning