Database 01
Introduction of SQL
May 8, 20222 min read726
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Series
It's Dataday
In this series, I will be writing about Databases from basic to advance.
Database 03
hello 👋 again. SQL MIN() and MAX() functions min() returns the smallest value and max() functions is viceversa. Example SELECT MIN(price) FROM payroll SQL COUNT(), AVG() and SUM() function Count() returns the number of rows that matches a specifi...
May 15, 20222 min read3
Database 04
👋🏾, welcome back. Definition This clause is used to combine rows from two or more tables, based on a related column between them. Different Types of SQL Joins INNER JOIN: returns records that have matching values in both tables LEFT(OUTER) JOIN:...
May 19, 20222 min read10Best SQL Resources
Halo again 👋🏾 In this blog, I will list the best resources to learn and practice SQL. W3Schools SQLZOO SQLBolt HackerRank
May 31, 20221 min read8
