Lists Tuples Dictionaries

Q: def mystery (dict1, dict2): for key in dict1: return True if key not in dict2: return false

A: Given :

Q: . In Python, lists area. mutable data structuresb. static data structuresc. dynamic data…

A: Individual list element can be modified which makes it mutable.  Dynamic data structure means it's…

Q: Given a list of numbers (nums), for each element in nums, calculate how many numbers in the list are…

A: Please find the answer below :

Q: ort Realize direct insertion sort, half insertion sort, bubble sort, quick sort, select sort, heap…

A: Sorting refers to arranging data in a particular format. Sorting algorithm specifies the way to…

Q: Perl I CpSc 390 Usin Perl Programm:  A list of names (names) is given : “Jo Peter Ann Fred Linda…

A: In this question we have to write a Perl program based on the requirements given in the…

Q: Which of the basic data structures is the most suitable if you only need to implement recursion in a…

A: Recursion is a computer programming technique in which a procedure, subroutine, function, or…

Data Dictionary

A database management system has an entity-relationship diagram, data dictionary, and data model as some of its key components, which are tools for the users who are managing the database. One of them is the data dictionary. The data dictionary can also be called metadata. By definition, metadata is a generic concept in the world of information and technology. An example of metadata could be meta-information about a media file or an image file, like author, location, last updated, size, etc. The contents of a data dictionary are names, attributes, and properties of main data elements which are captured during an experiment or stored in an information system, for example, databases. We can also call it a central repository of information about the main data.