EBK ESSENTIALS OF MIS,
13th Edition
ISBN: 8220106778494
Author: LAUDON
Publisher: PEARSON
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Expert Solution & Answer
Chapter 12, Problem 1IQ
Explanation of Solution
Answer to interviewer question:
The job seeker tells about the course of
SQL query:
To create a table in SQL, the programmer must know about syntax for the code. The syntax for creating a table is as follows:
CREATE TABLE TABLE_NAME (
Column1 datatype,
Column2 datatype,
…
);
The following table “Employee” is created using the about syntax in SQL.
CREATE TABLE Employee (EMP_NUM CHAR(3) PRIMARY KEY, EMP_LNAME VARCHAR(15), EMP_FNAME VARCHAR(15), EMP_INITIAL CHAR(1), EMP_HIREDATE DATE, JOB_CODE CHAR(3), FOREIGN KEY (JOB_CODE) REFERENCES JOB);
Explanation:
The table named “Employee” was created using the above query as per the given data types. The data type for “EMP_NUM”, “EMP_INITIAL”, and “JOB_CODE” is given as “CHAR”. The data type for “EMP_LNAME”, “EMP_FNAME” is “VARCHAR” and the data type for “EMP_HIREDATE” is given as “DATE”.
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Students have asked these similar questions
3.) File Encryption and DecryptionWrite a program that uses a dictionary to assign “codes” to each letter of the alphabet. For example:
codes = { ‘A’ : ‘%’, ‘a’ : ‘9’, ‘B’ : ‘@’, ‘b’ : ‘#’, etc . . .}Using this example, the letter A would be assigned the symbol %, the letter a would be assigned the number 9, the letter B would be assigned the symbol @, and so forth.
The program should open a specified text file, read its contents, then use the dictionary to write an encrypted version of the file’s contents to a second file. Each character in the second file should contain the code for the corresponding character in the first file.
Write a second program that opens an encrypted file and displays its decrypted contents on the screen.
Returns an US standard formatted phone number, in the format of
(xxx) xxx-xxxx
the AreaCode, Prefix and number being each part in order.
Testing Hint: We be exact on the format of the number when
testing this method. Make sure you think about how to convert
33 to 033 or numbers like that when setting your string format. Reminder
the %02d - requires the length to be 2, with 0 padding at the front if a single
digit number is passed in.
The next problem concerns the following C code:
/copy input string x to buf */
void foo (char *x) {
char buf [8];
strcpy((char *) buf, x);
}
void callfoo() {
}
foo("ZYXWVUTSRQPONMLKJIHGFEDCBA");
Here is the corresponding machine code on a Linux/x86 machine:
0000000000400530 :
400530:
48 83 ec 18
sub
$0x18,%rsp
400534:
48 89 fe
mov
%rdi, %rsi
400537:
48 89 e7
mov
%rsp,%rdi
40053a:
e8 d1 fe ff ff
40053f:
48 83 c4 18
add
callq 400410
$0x18,%rsp
400543:
c3
retq
0000000000400544 :
400544:
48 83 ec 08
sub
$0x8,%rsp
400548:
bf 00 06 40 00
mov
$0x400600,%edi
40054d:
e8 de ff ff ff
callq 400530
400552:
48 83 c4 08
add
$0x8,%rsp
400556:
c3
This problem tests your understanding of the program stack. Here are some notes to
help you work the problem:
• strcpy(char *dst, char *src) copies the string at address src (including
the terminating '\0' character) to address dst. It does not check the size of
the destination buffer.
You will need to know the hex values of the following characters:
Chapter 12 Solutions
EBK ESSENTIALS OF MIS,
Ch. 12.2 - Prob. 1CQ1Ch. 12.2 - Prob. 2CQ1Ch. 12.2 - Prob. 3CQ1Ch. 12.4 - Prob. 1CQ2Ch. 12.4 - Classify and describe the people, organization,...Ch. 12.4 - Prob. 3CQ2Ch. 12.4 - Why do you think the implementation of Snohomish...Ch. 12 - Prob. 1IQCh. 12 - Prob. 2IQCh. 12 - Prob. 3IQ
Ch. 12 - Prob. 4IQCh. 12 - Prob. 5IQCh. 12 - What are the core problem-solving steps for...Ch. 12 - Prob. 2RQCh. 12 - Prob. 3RQCh. 12 - Prob. 5DQCh. 12 - Prob. 6DQCh. 12 - Prob. 7DQCh. 12 - The Warm and Toasty Heating Oil Company used to...Ch. 12 - Prob. 9HMPCh. 12 - Prob. 11HMPCh. 12 - Prob. 12CSQCh. 12 - What problems was the Philly311 project designed...Ch. 12 - Prob. 14CSQCh. 12 - Prob. 15CSQCh. 12 - Prob. 18MLMCh. 12 - Prob. 19MLM
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