If a file contains an index directory that allows for random access, what does it mean?
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If a file contains an index directory that allows for random access, what does it mean?
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- When you say a file is indexed, do you mean it has an index directory that allows for random access?This is the most effective file organization method in which one must handle all data records in a file namedPOWERSHELL TASK Try to swap two strings/names in a file and the file name should be a command-line argument.
- C programming language Topic : Input/Output Program : Product list (product.c) Definition : The program reads a series of items form a file and displays the data in columns. The program obtains the file name from the command line. Each line of the file will have the following form: item, mm-dd-yyyy, price For example, suppose that the file contains the following lines: 123, 12.00, 12/25/2006 124, 18.30, 1/10/2020 Expected output: Item Unit Purchase Price Date 123 $ 12.00 12/25/2006 124 $ 18.30 1/10/2020C++: Matching Program Create a datafile that contains the first name, last name, gender, age, height, smoking preference, eye color and phone number. Add a variety of records to the file. A sample file looks like: Write a program that opens the file and reads the records one by one. The program will skip any records where the gender preference is not a match. Of those records that match the gender preference, check to see if the age and height are between the maximum and minum preferences. Then check to see if the smoking preference and eye color are also a match. If at least 3 of the remaining fields match, consider the record a partial match, and print it in the report. If all 4 of the remaining fields match, the record is a perfect match and print it in the report with an asterisk next to it. At the end of the program, close the file and report how many total records there were of the specified gender, how many were a partial match, and how many were a perfect match. See the…programming language : c++ NOTE : YOU HAVE TO USE FILE HANDLING question : make a programm in c++ that ask user for the number of students whose records must be inserted in file. Afterwards, take records from user, calculate grade of students and store all records in a file.
- For C++: Design a program that you can use to keep all of your friends' names and phone number in a file. The program should be menu-driven, with functions and offer the following operations: Add a new record Search for name Modify a phone number Delete a record Exit the programDoes the accumulation of entries in a file cause it to cluster?A movie file has the following record structure:name ofthe movie producer director type productioncostAssume that the name of the movie is the primary key of the file. Thefield type refers to the type of the movie, for example, drama, sci-fi, horror, crimethriller, comedy and so forth. Input a sample set of records of your choice into themovie file.i) Implement a primary index-based ISAM file organization.ii) Implement secondary indexes on director, type and productioncost.