Srini

grep: How to Find Empty Lines in a File

Here is the most useful command to get empty lines from a file using grep in Linux.

Here is a sample function that you can write in PL/SQL of Oracle. This function’s purpose is to check input if it is a number or not.

Here is a sample python program to spell out a number using dictionary data type. And it is helpful for interviews and project purposes.

Here is a sample sub-query. Here you will read records from two tables. Also explained how the query works.

Here are steps of how to create a procedure in SQL developer and how to call it.

Here are 13 essential python interview questions useful to crack your interview.

Sample Python script to calculate the sum of the GP series. Knowing the skills applied to write this script useful for interviews.

Here’s a python program that reverses the name you enter and prints it in reverse order. This is useful for interviews.

Here is a shell script to calculate the sum of input file records. And to replace a string with a new one using sed utility.

JSON files are popular in message interchange. Here is sample python logic on how to write JSON data to a file using the dump function

Here are the best examples of how to use sed utility to search and replace. These examples explain how to replace a string with your choice.

Here’s a sample Explain plan query to find statistics of the execution plan. Useful for SQL and Data warehousing developers.