Data Engineering Essentials: Tools and Techniques You Need to Master

Ad Code

Responsive Advertisement
Write SQL Query to fill the missing months with previous months salary

Write SQL Query to fill the missing months with previous months salary

Sreenu Y February 25, 2025

Write SQL Query to fill the missing months with previous month’s salary? Video   To achieve the desired output, we can …

Read more
SQL Join Interview question: Different types of SQL joins and describe the output each type produces?

SQL Join Interview question: Different types of SQL joins and describe the output each type produces?

Sreenu Y December 31, 2024

What is the output of below query for all joins?         SELECT T1.* FROM  T1 JOIN T2 ON T1.C1=T2.C1 AND T1.C2&l…

Read more
SQL Question:Write an SQL query that checks for email addresses with at least 8 alphabetic characters before the "@"

SQL Question:Write an SQL query that checks for email addresses with at least 8 alphabetic characters before the "@"

Sreenu Y December 21, 2024

SQL Query:  Write an SQL query that checks for email addresses with at least 8 alphabetic characters before the "…

Read more
SQL Convertion Query using Oracle, MySQL, PostgreSQL and SQL Server

SQL Convertion Query using Oracle, MySQL, PostgreSQL and SQL Server

Sreenu Y December 11, 2024

Write to SQL query to Classify the values in the column based on criteria. For instance, the Name column in the source …

Read more
How to extract the filename from a given file path using different SQL databases: Oracle, MySQL, SQL Server, and PostgreSQL.

How to extract the filename from a given file path using different SQL databases: Oracle, MySQL, SQL Server, and PostgreSQL.

Sreenu Y November 22, 2024

How to extract the filename from a given file path using different SQL databases: Oracle, MySQL, SQL Server, and Postgr…

Read more