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Showing posts with the label ETL

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Step-by-Step Guide to Creating an AWS RDS Database Instance

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 Amazon Relational Database Service (AWS RDS) makes it easy to set up, operate, and scale a relational database in the cloud. Instead of managing servers, patching OS, and handling backups manually, AWS RDS takes care of the heavy lifting so you can focus on building applications and data pipelines. In this blog, we’ll walk through how to create an AWS RDS instance , key configuration choices, and best practices you should follow in real-world projects. What is AWS RDS? AWS RDS is a managed database service that supports popular relational engines such as: Amazon Aurora (MySQL / PostgreSQL compatible) MySQL PostgreSQL MariaDB Oracle SQL Server With RDS, AWS manages: Database provisioning Automated backups Software patching High availability (Multi-AZ) Monitoring and scaling Prerequisites Before creating an RDS instance, make sure you have: An active AWS account Proper IAM permissions (RDS, EC2, VPC) A basic understanding of: ...
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How to Write ETL Logic in Python: Sample Code to Practice

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Here's an example Python code that uses the mysql-connector library to connect to a MySQL database, extract data from a table, transform it, and load it as a JSON file. Here's an example: Python ETL Sample Code import mysql.connector import json # Connect to the MySQL database cnx = mysql.connector.connect(user='username', password='password',                               host='localhost',                               database='database_name') # Define a cursor to execute SQL queries cursor = cnx.cursor() # Define the SQL query to extract data query = ("SELECT column1, column2, column3 FROM table_name") # Execute the SQL query cursor.execute(query) # Fetch all rows from the result set rows = cursor.fetchall() # Transform the rows into a list of dictionaries result = [] for row in rows:     result.append({'column1': row[0], 'col...
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Top features of HPCC -High performance Computing Cluster

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[Hadoop Jobs] HPCC (High-Performance Computing Cluster) was elaborated and executed by LexisNexis Risk Solutions. The creation of this data processing program started in 1999 and applications remained in manufacture by belated 2000.  The HPCC style as well uses product arrays of equipment operating the Linux Operating System. Custom configuration code and Middleware parts remained elaborated and layered on the center Linux Operating System to supply the implementation ecosystem and dispersed filesystem aid needed for data-intensive data processing. LexisNexis as well executed a spic-and-span high-level lingo for data-intensive data processing. The ECL (data-centric program design language)|ECL program design lingo is a high-level, declarative, data-centric, Implicit parallelism|implicitly collateral lingo that permits the software coder to determine what the information handling effect ought to be and the dataflows and transformations that are required to attain the e...
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The story Hadoop data value less in cost than ETL

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Traditional data warehouse That isn’t to say that Hadoop can’t be used for structured data that is readily available in a raw format; because it can.In addition, when you consider where data should be stored, you need to understand how data is stored today and what features characterize your persistence options.  Consider your experience with storing data in a traditional data warehouse. Typically, this data goes through a lot of rigor to make it into the warehouse.  Builders and consumers of warehouses have it etched in their minds that the data they are looking at in their warehouses must shine with respect to quality; subsequently, it’s cleaned up via cleansing, enrichment, matching, glossary, metadata, master data management, modeling, and other services before it’s ready for analysis.  Obviously, this can be an expensive process. Because of that expense, it’s clear that the data that lands in the warehouse is deemed not just of high value, but it has a bro...
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