Which of the following SQL statement will change the job code (JOB_CODE) to 211 for the person whose employee number (EMP_NUM) is 7 in the EMPLOYEE table?
a. SET JOB_CODE = 211
WHERE EMP_NUM = 7;
b. ALTER JOB_CODE = 211
WHERE EMP_NUM = 7;
c. UPDATE JOB_CODE = 211
WHERE EMP_NUM = 7;
d. UPDATE EMPLOYEE
SET JOB_CODE = 211
WHERE EMP_NUM = 7;
Answers
The WHERE clause is used to specify the condition for which rows to update, in this case, where EMP_NUM equals 7.
The correct SQL statement to change the job code (JOB_CODE) to 211 for the person whose employee number (EMP_NUM) is 7 in the EMPLOYEE table is:
d. UPDATE EMPLOYEE
SET JOB_CODE = 211
WHERE EMP_NUM = 7;
The UPDATE statement is used to modify existing records in a table. In this case, it specifies the table name as EMPLOYEE. The SET keyword is used to assign a new value to the JOB_CODE column, which is set to 211. The WHERE clause is used to specify the condition for which rows to update, in this case, where EMP_NUM equals 7.
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Related Questions
27.4.7 Contact Merge Python
Answers
Answer:
Explanation:
.
3. what are two reasons why you might want to delete the drivers and driver package when you uninstall a device?
Answers
1. To reduce clutter on the computers and improve performance.
2. To ensure the device is completely uninstalled and no remnants remain.
When uninstalling a device from a computer, it is usually necessary to delete the drivers and driver package associated with the device as well. This is important for a few reasons. Firstly, deleting the drivers and driver package helps to reduce clutter on the system, as the system no longer needs to keep the files associated with the device. This helps to improve system performance, as the system is no longer trying to use unnecessary files. Secondly, deleting the drivers and driver package helps to ensure the device is completely uninstalled and no remnants remain. If the drivers and driver package were not deleted, they could potentially interfere with the operation of other devices or cause compatibility issues. Therefore, it is important to delete the drivers and driver package when uninstalling a device in order to keep the system running smoothly.
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Which of the following least illustrates inequity caused by the digital divide?
Answers
A(n) _____________ is a program used to create and implement a database. operating system database management system information system database system
Answers
The program used to create and implement a database is called an operating system.
What is an operating system?An operating system (OS) is a system that helps to manage and allocate computer resources. These computer resources are:
Central processing unit (CPU), Computer memory, File storage, Input/output devices,Network connections.The most used operating system are;
Apple mac OS, Microsoft Windows, Go-ogle Android OS, Lin-ux Operating System, Apple iOSLearn more about operating system:
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write a program to add 8 to the number 2345 and then divide it by 3. now, the modulus of the quotient is taken with 5 and then multiply the resultant value by 5. display the final result.
Answers
Answer:
Here is a program in Python that will perform the operations described:
# Calculate 8 + 2345
result = 8 + 2345
# Divide by 3
result = result / 3
# Take modulus with 5
result = result % 5
# Multiply by 5
result = result * 5
# Display final result
print(result)
Explanation:
This program will add 8 to the number 2345, divide the result by 3, take the modulus with 5, and then multiply the result by 5. The final result will be displayed on the screen.
I hope this helps! Let me know if you have any questions or if you need further assistance.
List out analog computer
Answers
Answer:
1. Wall clocks.
2. Analog watches
3. Measuring instruments with callibration
Explanation:
What is the purpose of a web server? What is the purpose of a web browser?
Answers
Answer: the purpose of a web browser is to help answer and needed questions, and to get to sites.
Explanation:
user-defined scalar types are created with the enum class keywords in c .
Answers
User-defined scalar types are not created with the "enum class" keywords in C++.
In C++, the "enum class" keywords are used to define scoped enumerations, also known as strong enumerations. Enumerations allow you to define a set of named constants, where each constant represents a distinct value. However, enumerations are not equivalent to user-defined scalar types.
User-defined scalar types in C++ are typically created using classes or structures. A scalar type represents a single value, such as integers, floating-point numbers, or characters. These types can have various operations defined on them, like arithmetic operations and comparison operators.
On the other hand, "enum class" is used to define an enumeration type with a specific scope. It provides stronger type safety by limiting the enumeration constants' visibility to the specified scope, preventing unintended conversions and potential naming conflicts.
To create user-defined scalar types in C++, you would typically define a class or structure with member variables and functions that define the desired behavior and operations for the type.
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a measure of the likelihood that a biometric security system will incorrectly accept an access attempt by an unauthorized user is known as:
Answers
FAR, short for false acceptance rate, measures how likely the possibility that a biometric security system will be compromised.
A biometric security system is defined as:The use of biometric information for identification, access management, and authentication is known as biometric security. Biometric data is scanned and programmatically compared to data stored in a database by hardware components like cameras and fingerprint readers.
What distinguishes a fingerprint from a biometric?Biometric technology makes use of distinctive, non-replicable physical or behavioral characteristics. A means of identifying an individual that is unique to each person is through their fingerprints. Nobody else's fingerprints will be identical to yours.
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TRUE/FALSE. ideally, when users receive training about fundamentals of network use, they become confident about what they need to do when working on a network.
Answers
Answer: true
Explanation:
You decide to use a battery labeled “205 mAh 1S” with a total voltage of 3.7 V. What is the overall energy capacity of the battery?
Answers
Answer: 0.7585Wh
Explanation:
Battery capacity = 205 mAH
Nominal Voltage (V) = 3.7
The overall energy capacity of the battery is measured in watt-hour. Which is the product of the battery capacity in Ampere-hour(AH) and the nominal voltage of the battery in volt (V)
205mAH = 205/1000 = 0.205AH
Therefore, energy capacity:
0.205AH × 3.7 V = 0.7585Wh
This gives us the amount of energy stored in the battery per hour.
Therefore, a battery with nominal voltage of 3.7V and current capacity of 205mAH has a maximum energy capacity of 0.8585Wh.
A(n) _______________ is a named homogeneous collection of items in which individual items are accessed by an index.
Answers
An array is a named homogeneous collection of items in which individual items are accessed by an index.
How does an array allow access to individual items?An array is a data structure that allows the storage and organization of a fixed-size collection of elements. It provides a way to access each individual item in the collection by using an index. Each element in the array is assigned a unique index, starting from 0, which represents its position in the collection.
Arrays are commonly used in programming languages to store and manipulate data efficiently. By using an index, we can retrieve or modify specific elements in the array without having to iterate through the entire collection. This direct access to elements based on their index makes arrays a powerful tool for managing and processing large sets of data.
Arrays can be implemented in various programming languages and offer different functionalities depending on the language and its specific features. They are widely used for tasks such as storing lists, implementing matrices, and managing data structures.
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public class DebugTwo1
{
public static void main(String[] args)
{
integer oneInt = 315;
double oneDouble = 12.4;
character oneChar = 'A';
System.out.print("The int is ");
System.out.println(oneint);
System.out.print("The double is ");
System.out.println(onDouble);
System.out.print("The char is ");
System.out.println(oneChar);
}
}
de-bug the code
Answers
Using the knowledge in computational language in python it is possible to write a code that write a program which takes user input of a number of feet, and then prints the number of whole yards in that many feet
Writting the codepublic class DebugTwo1
{
public static void main(String[] args)
{
int oneInt = 315;
double oneDouble = 12.4;
char oneChar = 'A';
System.out.print("The int is ");
System.out.println(oneInt);
System.out.print("The double is ");
System.out.println(oneDouble);
System.out.print("The char is ");
System.out.println(oneChar);
}
}
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![public class DebugTwo1{ public static void main(String[] args) { integer oneInt = 315; double oneDouble](https://i5t5.c14.e2-1.dev/h-images-qa/answers/attachments/7Xhhv2OswLZABAtknBGCmP2kHmnAfTwx.png)
In order to ensure drive health, what command should you use to search for a repair file system error
Answers
Write a while loop that replaces every occurrence of “cat” in the message with “dog” using the indexOf and substring methods.
Given:
public class ChallengeReplace
{
public static void main(String[] args)
{
String message = "I love cats! I have a cat named Coco. My cat's very smart!";
// Write a loop here that replaces every occurrence of "cat"
// in the message with "dog", using indexOf and substring.
}
}
Answers
Answer:
Complete the program using:
int index = message.indexOf("cat");
while(index != -1){
message = message.replace("cat","dog");
index = message.indexOf("cat");
}
System.out.print(message);
}
}
Explanation:
The line gets the index of string "cat"
int index = message.indexOf("cat");
The following operation is repeated until all occurrence of "cat"s has been replaced with dog
while(index != -1){
message = message.replace("cat","dog");
index = message.indexOf("cat");
}
This prints the new string
System.out.print(message);
}
}
The program illustrates the use of loops.
Loops are used to perform repetitive and iterative operations.
The code segment where comments are used to explain each line, is as follows:
//This gets the index of "cat" in the string message
int index = message.indexOf("cat");
//The following loop is repeated, until there is no occurrence of "cat" in the string
while(index != -1){
//This replaces "cat" with "dog"
message = message.replace("cat","dog");
//This gets another index of "cat" in the string message
index = message.indexOf("cat");
}
//This prints the new string
System.out.print(message);
}
}
At the end of the loop, all occurrence of "cat" are replaced with "dog".
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_____ often enters a computer through free online downloads.
Answers
Viruses can enter your computer as an image, greeting, or audio/video file attachment. Viruses can also infiltrate through Internet downloads. They may be concealed in free/trial software or other items that you download.
What is available as a free download and is installed automatically?Spyware (Adware and Spyware) 16. They frequently appear as a free download and are installed automatically, with or without your knowledge. Trojan Horses. A harmful application that masquerades as or is integrated in genuine software. A Trojan Horse (Trojan) is a form of malware that masquerades as genuine software or code. Once within the network, attackers can do any activity that a legitimate user would, including as exporting files, editing data, deleting files, or otherwise manipulating the device's contents. Spyware is software that tracks all of your computer actions, from which apps you use to which websites you visit. Adware is software that displays advertising and offers based on the websites you visit.
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two small posts or metal pins on the motherboard that are either open or closed are _____
Answers
Two small posts or metal pins on the motherboard that are either open or closed are jumpers.
Jumpers are used to configure certain settings on the motherboard, such as enabling or disabling certain features or adjusting the clock speed. The jumper is typically a small plastic block that fits over the pins to either connect or disconnect them. By changing the position of the jumper, the user can change the configuration of the motherboard. Some motherboards may also use jumpers to reset the CMOS or BIOS settings. It is important to refer to the motherboard manual for proper jumper settings, as incorrect configuration can cause issues with system performance and stability.
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Which tool is used by an administrator to manage many routers and provide an overall view of all the network? group of answer choices
Answers
A tool which is used by an administrator to manage many routers and provide an overall view of all the network is called: C. Network Management System (NMS).
What is a router?A router can be defined as a network device (node) that is designed and developed to connect two (2) different computer networks together, in order to allow them communicate by forwarding and receiving packets.
In Computer Networking, a Network Management System (NMS) simply refers to a tool which is designed and developed to be used by a network administrator in order to manage several routers while providing an overall view of all the network.
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Complete Question:
Which tool is used by an administrator to manage many routers and provide an overall view of all t.
A. traceroute
B. ping
C. Network Management System (NMS)
D. MTR
I made Pico with a Ray Gun (Next is Dad/Tankman)
Opinons?
Answers
Answer:
It's cool!
Explanation:
Everything coalesces together perfectly! Despite the fact the boy and his ray gun are vastly different in style, I think it's cool overall! :)
Explain why the receptionist responded as indicated in the following scenario.
Situation: Jim and Roger are meeting with the executives of the company. They are both wearing blue jeans, polo shirts, and ties. As they walk past the receptionist, he stops them and reminds them the dress code is white collar.
Answers
Hope this helps!
Define self-esteem: A how I feel about myself B how I visualize myself C how I esteem myself
Answers
Answer:
A how I feel about myself
Explanation:
Self-esteem is your overall opinion of yourself — how you feel about your abilities and limitations. When you have healthy self-esteem, you feel good about yourself and see yourself as deserving the respect of others. When you have low self-esteem, you put little value on your opinions and ideas.
Write a for loop to print all the even numbers from 200 to 300.
Expected Output
200
202
204
206
208
210
212
214
216
218
220
222
224
226
228
230
232
234
236
238
240
242
244
246
248
250
252
254
256
258
260
262
264
266
268
270
272
274
276
278
280
282
284
286
288
290
292
294
296
298
300
Answers
for x in range(200, 301, 2):
print(x)
I hope this helps!
What will the following code do? const int SIZE = 5; double x[SIZE]; for (int i = 2; i <= SIZE; i++) x[1] = 0.0; OA. Each element in the array is initialized to 0.0. B. Each element in the array, except the first, is initialized to 0.0. C. Each element in the array, except the first and the second, is initialized to 0.0. An error, reported or not, will occur when the code runs (Note that if there is an error, it supersedes any of the previous answers for purposes of this question)
Answers
The given code initializes all the elements in the array except the first element, to 0.0. Hence, option B is correct.
What is an array? An array is a collection of data elements that are of the same type and accessed using a common name. Array indices begin with 0 and end with n-1, where n is the number of elements in the array.
What is a constant? A constant is a value that cannot be modified in the code and is specified by the keyword const. Constants can be of any data type, including integers, floats, and arrays, among others.
What does the code do? cons t in t SIZE = 5; double x[SIZE]; for (int i = 2; i <= SIZE; i++) x[1] = 0.0; The given code initializes all the elements in the array except the first element, to 0.0.
This is because the loop begins at index 2 (not 1) and continues until the end of the array. The second element in the array (at index 1) is not modified because it is outside the loop. Hence, option B is correct.
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Debug big tower can someone help me
Answers
Answer:
2
Explanation:
2 is because that what i think
Answer:its c
Explanation:
because thts wht i thinl
Unlike the harmonic numbers, the sum 1/12 + 1/22 + ... + 1/n? does converge to a constant as n grows to infinity. (Indeed, the constant is n/6, so this formula can be used to estimate the value of .) Which of the following for loops computes this sum? Assume that n is an int variable initialized to 1000000 and sum is a double variable initialized to 0.0.
Answers
Explanation:
None of the following for loops correctly computes the given sum:
for (int i = 1; i < n; i++) {
sum += 1/(i*i);
}
for (int i = 1; i <= n; i++) {
sum += 1/(i*i);
}
for (int i = 1; i <= n; i++) {
sum += 1.0/(i*i);
}
The correct for loop to compute the given sum is:
for (int i = 1; i <= n; i++) {
sum += 1.0/(i*i);
}
This loop correctly iterates from i=1 to i=n and uses the double data type to ensure that the division operation results in a decimal approximation.
algorithm ????1 takes 10−4 ×????2 seconds to solve a problem instance of size n and algorithm ????2 takes 10−2 ×????2 seconds to do the same on particular machine. (5 points) (a) what is the size of the largest problem instance that ????1 will be able to solve in one year? (b) what is the size of the largest problem instance that ????1 will be able to solve in one year on a hundred times faster machine? (c) what is the size of the largest problem instance that ????2 will be able to solve in one year? (d) what is the size of the largest problem instance that ????2 will be able to solve in one year on a hundred times faster machine? (e) which algorithm will produce results faster, in case we are trying to solve problem instances of size less than 20?
Answers
(a) The largest problem size Algorithm 1 can solve in one year is approximately \(9.46 * 10^{12}.\)
(b) On a hundred times faster machine, Algorithm 1 can solve a problem size \(3.65 * 10^9\) of approximately one year.
(c) Algorithm 2 can solve a problem size of approximately \(3.65 * 10^9\)in one year.
(d) On a hundred times faster machine, Algorithm 2 can solve a problem size of approximately 3.65 * \(10^7\) in one year.
(e) Algorithm 2 will produce results faster for problem instances of size less than 20.
We have,
Given:
Algorithm 1: Time taken = \(10^{-4}\) * n seconds
Algorithm 2: Time taken = \(10^{-2}\) * n seconds
Assuming a year has 365 days and each day has 24 hours.
(a) Size of the largest problem instance Algorithm 1 can solve in one year:
Time available in one year = 365 * 24 * 60 * 60 seconds
Let's set up an equation to solve for the problem size (n):
\(10^{-4} * n = 365 * 24 * 60 * 60\\n = (365 * 24 * 60 * 60) / 10^{-4}\\n = 9.46 * 10^{12}\)
(b) Size of the largest problem instance Algorithm 1 can solve in one year on a hundred times faster machine:
Since the machine is a hundred times faster, the time taken by Algorithm 1 will be divided by 100.
Time available on the faster machine = (365 * 24 * 60 * 60) / 100
Let's set up an equation to solve for the problem size (n):
\(10^{-4} * n = (365 * 24 * 60 * 60) / 100\\n = 9.46 * 10^1{0}\)
(c) Size of the largest problem instance Algorithm 2 can solve in one year:
Let's set up an equation to solve for the problem size (n):
\(10^{-2} * n = 365 * 24 * 60 * 60\\n = (365 * 24 * 60 * 60) / 10^{-2}\\n = 3.65 * 10^9\)
(d) Size of the largest problem instance Algorithm 2 can solve in one year on a hundred times faster machine:
Time available on the faster machine = (365 * 24 * 60 * 60) / 100
Let's set up an equation to solve for the problem size (n):
\(10^{-2} * n = (365 * 24 * 60 * 60) / 100\\n = 3.65 * 10^7\)
(e) Since the problem size is less than 20, Algorithm 2 will produce results faster as it has a fixed time complexity of \(10^{-2}\) * n, which is faster than Algorithm 1 with time complexity of \(10^{-4}\) * n for problem sizes less than 20.
Thus,
(a) The largest problem size Algorithm 1 can solve in one year is approximately \(9.46 * 10^{12}.\)
(b) On a hundred times faster machine, Algorithm 1 can solve a problem size \(3.65 * 10^9\) of approximately one year.
(c) Algorithm 2 can solve a problem size of approximately \(3.65 * 10^9\)in one year.
(d) On a hundred times faster machine, Algorithm 2 can solve a problem size of approximately 3.65 * \(10^7\) in one year.
(e) Algorithm 2 will produce results faster for problem instances of size less than 20.
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Please give answers between 500 words.
What have been the major issues and benefits in
Electronic Data Interchanges (EDI) and Web-Based/Internet
Tools?
Answers
The major issues and benefits of electronic data interchange (EDI) and web-based/Internet tools, such as compatibility and standardization, privacy, cost, dependence on internet connectivity, etc.,
One of the challenges of EDI is that it is ensuring compatibility between different systems and also establishing standardized formats for data exchange. It requires agreement and coordination among trading partners in order to ensure the seamless communication, while there are many benefits that include EDI and web-based tools that enable faster and more efficient exchange of information, eliminating manual processes, paperwork, and potential errors. Real-time data exchange improves operational efficiency and enables faster decision-making. Apart from this, there are many other benefits to these.
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what is a type of system software that allows a user to perform maintenance type tasks
Answers
Answer:
Computer
Explanation:
The type of system software that allows a user to perform maintenance-type tasks is a computer.
A computer has many programs and operating systems.
Aume both the variable 1 and 2 have been aigned tring. Write an expreion that evaluate to True if 1 i greater than 2
Answers
Mathematical operators such as addition, subtraction, multiplication, and division are used to form an expression using numbers or variables.
How do you write an expression in algebra?Mathematical operators such as addition, subtraction, multiplication, and division are used to form an expression using numbers or variables.For instance, "4 added to 2" in mathematics will be expressed as 2+4.Any mathematical statement made up of numbers, variables, and an operation between them is called an expression or an algebraic expression.As an illustration, the equation 4m + 5 consists of the terms 4m and 5, as well as the variable m, all of which are separated from one another by the arithmetic sign +.A mathematical expression is a phrase that includes at least two numbers or variables, at least one arithmetic operation, and the expression itself.Any one of the following mathematical operations can be used.To learn more about expression refer
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how can you identify the chart elements button when you select a chart?
Answers
To identify the Chart Elements button when you select a chart, you can hover your cursor over the different parts of the chart, and their names will appear in small text boxes, which can help you identify the different chart elements.
Additionally,
1. Open the spreadsheet or document containing the chart.
2. Click on the chart to select it.
3. Look for the Chart Elements button, which appears as a "+" symbol, typically located at the upper right corner of the selected chart.
4. Click on the Chart Elements button to access various options and elements that can be added or modified in the chart.
By following these steps, you can easily identify and use the Chart Elements button when you select a chart.
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