Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
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- What is the usage of REAL10 type?arrow_forwardIn a segment definition, what are the possible combine types?arrow_forwardProblem D. Find URLsHTML is a language for representing documents designed to be displayed by a web browser. In many browsers, you can see the HTML source code by right-clicking somewhere on the page and clicking “View Page Source”. If you try this on a web page with links to other websites, you’ll notice that the URL of the link is usually formatted in the following way: href="https://some.website.com/subfolder/more_stuff.txt" Write a function find_url(html) that takes in a string of html text that contains exactly one external link URL formatted as above, and returns just the URL string (in the above example, that would be https://some.website.com/subfolder/more_stuff.txt). You can assume that the only place in the string where the substring href=" occurs is right before the URL, and that the next quotation mark after that point denotes the end of the URL. Hints: ● The .find method and string slicing will likely make this easier. ● Remember that in order to use a double quote…arrow_forward
- Using the MATLAB editor, create a script m-file which includes a header block and comments: Create a matrix which holds values of: y=a^x where a is a column array A have values in the range 1-5 with 0.5 increments x is a row array X having integer values 1-5 Display the matrix results Save the script and publish function to create a pdf file from the script in a file named "ECE105_Wk2_L1_Prep_2"arrow_forwardUsing the MATLAB editor, create a script m-file which includes a header block and comments:Create a matrix which holds values of: y = a^x where a is a column array A having the values 1-5 in 0.5 increments x is a row array X having integer values 1-5 Display a message explaining the results which will be displayed.Display the 5th row of the matrix. Save the script and publish function to create a pdf file from the script in a file named "ECE105_Wk2_L2_Prep_2".arrow_forwardSAME PARAMETERS: In the RENTALS table shown in fig 2, 40 customers have created 50 rental contracts over time. A RENTALS record is 122 bytes and the block size for your OS is set to 1024 bytes with each block having a 1 byte pointer to the next written block as well as a 1 byte pointer to the next physically consecutive block. Assuming spanned organization, how many blocks do you estimate the RENTALS file is using at its current size? multiple choice a.50 b.6 c.400 d.7arrow_forward
- Write a pseudo code in C++ to define the following table using structure. Name Home Address ID SSN Yearly income ($) 0 Jack Peter 5057 Woodward, Detroit 11309 123-567 40,000.00 1 James Machinaw 123490 900-677 23,000.00 2 3 4 5 6 7 8arrow_forwardin C++ generate a histogramLinks to an external site. of 20,000 randomly generated integer numbers according to a normal distribution with a user-specified mean and standard deviation. Your histogram will include the frequencies of at least 9 data points centering at the mean value: mean +/- x*stdDev, where x is in {0, 1, 2, 3, 4}. For example, given mean=1 and standard deviation of 2, you will calculate the frequency of at least the following values: 1-4*2, 1-3*2, 1-2*2, 1-2, 1, 1+2, 1+2*2, 1+3*2, 1*4*2.arrow_forwardExplain in details what the following are used for : (a) Lambda (b) Intermediate stream operations (c)Terminal stream Operation.arrow_forward
- Do the similar names for different operations between iostream and fstream have any significance? Is it ever okay to repurpose a function name?arrow_forwardLab 14: Processing a json file Read in a JSON file such as the following: { "students":[ } { }, { "firstName" "lastName : "Doe", "major" : "CENT", "credits": 12, : "Jane", "exams" : [92.7, 91.4, 95.2] "firstName" : "John" "lastName' : "Doe" "major": "PHYS", "credits" : 10.0, "exams : [91.1, 81.3, 85.6] "firstName" : "Bill", "lastName : "Gates", "major": "ICS", "credits" : 7, exams" : [98.7, 94.4, 96.4] PART 1: Parse the JSON data into a dictionary and output the data as follows: Jane Doe is majoring in CENT John Doe is majoring in PHYS Bill Gates is majoring in ICSarrow_forwardWhat is the purpose of the combined type in the definition of a segment segment? What is the purpose of the combined type in the definition of a segment segment?arrow_forward
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