Showing posts with the label excel

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8 Ways to Optimize AWS Glue Jobs in a Nutshell

  Improving the performance of AWS Glue jobs involves several strategies that target different aspects of the ETL (Extract, Transform, Load) process. Here are some key practices. 1. Optimize Job Scripts Partitioning : Ensure your data is properly partitioned. Partitioning divides your data into manageable chunks, allowing parallel processing and reducing the amount of data scanned. Filtering : Apply pushdown predicates to filter data early in the ETL process, reducing the amount of data processed downstream. Compression : Use compressed file formats (e.g., Parquet, ORC) for your data sources and sinks. These formats not only reduce storage costs but also improve I/O performance. Optimize Transformations : Minimize the number of transformations and actions in your script. Combine transformations where possible and use DataFrame APIs which are optimized for performance. 2. Use Appropriate Data Formats Parquet and ORC : These columnar formats are efficient for storage and querying, signif

Course Topics You Need to Know Before You Take Course on Excel

Hey, you want to be master in Excel. There are 4 parts in this course. These contents cover all the functionalities you need to work with Excel. Excel is one of the tools to be used in data analytics Why I have given contents means these you must ask your tutor if present in the course or not. This list useful to start a career in analytics. List of Excel Course Topics Part-1 - Importing Data from other sources Import or Export data from multiple data sources Part-2 - Converting data Excel ready Formatting the data understand by EXCEL. Part-3 - Data Mining Formulas you need for Data cleaning. Part-4- Excel Data Analysis Tools Data analysis using statistical methods, Charts and Pivot Tables