In this post, we will understand the difference between linear queue and circular queue −Linear QueueIt is a linear data structure, which data is arranged in a linear pattern.Operations such as insertion and deletion are done from rear and front respectively.It requires more memory, since data is stored in a linear fashion.The element that is added to a linear queue at first, is the element that gets deleted first.It follows FIFO, i.e first in first out.The element that is inserted first is the element that is deleted first as well.It is not as efficient as a circular queue structure.Circular QueueThe ... Read More

In this article, we will explain the difference between Insertion Sort and Selection Sort. These are two basic sorting algorithms used to arrange numbers in order. We will look at how they work, how fast they are, and when to use each one. By the end, you'll have a clear understanding of the differences between Insertion Sort and Selection Sort. Here's what we'll cover: What is Insertion Sort? What is Selection Sort? Complexity Comparison Key Differences Between Insertion Sort and Selection Sort ... Read More

In this post, we will understand the difference between definition and declaration.DefinitionDefinition, with respect to a function indicates that the body of the function has been developed.With respect to variable, it means a value has been associated/defined with that variable.A function can be defined only once.Once a function or variable has been defined, it is ready to be used.A variable can be re-defined multiple times, as and when required. This depends on the language and the scopes.Memory is allocated when function or a variable is defined.Below is an example of variable definitionsum = 0A variable named ‘sum’ is assigned to ... Read More

Problem Statement − Use boto3 library in Python to retrieve the table definition of a database.Example − Retrieve the table definition of a database ‘QA-test’ and table as ‘security’ for version 2.Approach/Algorithm to solve this problemStep 1 − Import boto3 and botocore exceptions to handle exceptions.Step 2 − database_name, table_name and version_id is the mandatory parameter. It fetches definition of given table for a specified version.Step 3 − Create an AWS session using boto3 library. Make sure region_name is mentioned in default profile. If it is not mentioned, then explicitly pass the region_name while creating the session.Step 4 − Create ... Read More

Problem Statement − Use boto3 library in Python to retrieve the table definition of a database.Example − Retrieve the table definition of a database ‘QA-test’ and table as ‘security’.Approach/Algorithm to solve this problemStep 1 − Import boto3 and botocore exceptions to handle exceptions.Step 2 − database_name and table_name is the mandatory parameter. It fetches the definition of given table.Step 3 − Create an AWS session using boto3 library. Make sure region_name is mentioned in default profile. If it is not mentioned, then explicitly pass the region_name while creating the session.Step 4 − Create an AWS client for glue.Step 5 − ... Read More

Problem Statement − Use boto3 library in Python to get details of all security configuration present in AWS Glue Security.Example − Get the details of all security configuration present in AWS Glue Security.Approach/Algorithm to solve this problemStep 1 − Import boto3 and botocore exceptions to handle exceptions.Step 2 − There is no parameter. It fetches all security configuration present in user’s AWS Glue Security.Step 3 − Create an AWS session using boto3 library. Make sure region_name is mentioned in default profile. If it is not mentioned, then explicitly pass the region_name while creating the session.Step 4 − Create an AWS ... Read More

Problem Statement − Use boto3 library in Python to get details of a specified security configuration present in AWS Glue Security.Example − Get details of a specified security configuration (‘job-security-settings’) present in AWS Glue Security.Approach/Algorithm to solve this problemStep 1 − Import boto3 and botocore exceptions to handle exceptions.Step 2 − security_name is the mandatory parameter whose configuration details needs to be fetched.Step 3 − Create an AWS session using boto3 library. Make sure region_name is mentioned in default profile. If it is not mentioned, then explicitly pass the region_name while creating the session.Step 4 − Create an AWS client ... Read More

Problem Statement − Use boto3 library in Python to get definition of all glue jobs present in user’s AWS Glue Data catalog.Example − Get definition of all glue jobs present in AWS Glue Data catalog.Approach/Algorithm to solve this problemStep 1 − Import boto3 and botocore exceptions to handle exceptions.Step 2 − No parameter is required for this function. It will fetch definition of all listed jobs for user account.Step 3 − Create an AWS session using boto3 library. Make sure region_name is mentioned in default profile. If it is not mentioned, then explicitly pass the region_name while creating the session.Step ... Read More

Problem Statement − Use boto3 library in Python to check statuses of all runs of a given job.Example − Get the status of all runs of a glue job named as ‘run_s3_file_job’.Approach/Algorithm to solve this problemStep 1 − Import boto3 and botocore exceptions to handle exceptions.Step 2 − job_name is the mandatory parameters. The function will fetch the details of a given job_name.Step 3 − Create an AWS session using boto3 library. Make sure region_name is mentioned in default profile. If it is not mentioned, then explicitly pass the region_name while creating the session.Step 4 − Create an AWS client ... Read More

Example − Retrieve the details of bookmarked job ‘book-job’ in AWS Glue Data Catalog.Problem Statement − Use boto3 library in Python to retrieve the details of a bookmarked job in AWS Glue Data Catalog.Approach/Algorithm to solve this problemStep 1 − Import boto3 and botocore exceptions to handle exceptions.Step 2 − bookmarked_job_name is the mandatory parameter. It should have job_name that is already bookmarked, otherwise it will throw EntityNotFoundException.Step 3 − Create an AWS session using boto3 library. Make sure region_name is mentioned in default profile. If it is not mentioned, then explicitly pass the region_name while creating the session.Step 4 ... Read More