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15 Python Tips : How to Write Code Effectively

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 Here are some Python tips to keep in mind that will help you write clean, efficient, and bug-free code.     Python Tips for Effective Coding 1. Code Readability and PEP 8  Always aim for clean and readable code by following PEP 8 guidelines.  Use meaningful variable names, avoid excessively long lines (stick to 79 characters), and organize imports properly. 2. Use List Comprehensions List comprehensions are concise and often faster than regular for-loops. Example: squares = [x**2 for x in range(10)] instead of creating an empty list and appending each square value. 3. Take Advantage of Python’s Built-in Libraries  Libraries like itertools, collections, math, and datetime provide powerful functions and data structures that can simplify your code.   For example, collections.Counter can quickly count elements in a list, and itertools.chain can flatten nested lists. 4. Use enumerate Instead of Range     When you need both the index and the value in a loop, enumerate is a more Pyth
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Sqoop Real Use in Hadoop Framework

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Why Sqoop you need while working on Hadoop-The Sqoop and its primary reason is to import data from structural data sources such as Oracle/DB2 into HDFS(also called Hadoop file system).



To our readers, I have collected a good video from Edureka which helps you to understand the functionality of Sqoop.

The comparison between Sqoop and Flume

Sqoop

How name come for Sqoop

Sqoop word came from SQL+HADOOP=SQOOP. And Sqoop is a data transfer tool. The main use of Sqoop is to import and export a large amount of data from RDBMS to HDFS and vice versa.


List of basic Sqoop commands

  1. Codegen- It helps to generate code to interact with database records.
  2. Create-hive-table- It helps to Import a table definition into a hive
  3. Eval- It helps to evaluate SQL statement and display the results
  4. Export-It helps to export an HDFS directory into a database table
  5. Help- It helps to list the available commands
  6. Import- It helps to import a table from a database to HDFS
  7. Import-all-tables- It helps to import tables from a database to HDFS
  8. List-databases- It helps to list available databases on a server
  9. List-tables-It helps to list tables in a database
  10. Version-It helps to display the version information

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