Lean how to change a table’s storage engine in MySQL. >>>
Monthly Archives: July 2024
JOIN Syntax vs WHERE JOIN in SQL
Explore the differences between queries with JOIN and WHERE. >>>
How to Parameterize an SQL IN Clause
Learn how to parameterize an SQL IN clause. >>>
How to Remove Duplicate Rows in SQL
A quick tutorial on removing duplicate rows in a SQL database. >>>
Dropping a Database Table if It Exists in SQL
Learn to delete a table safely. >>>
Altering a Column From NULL to NOT NULL in SQL
Learn about ways to modify the current NULL constraint of a column in SQL. >>>
How to Determine the Data Type of a Column Using SQL
Learn how to find the data type of a column or all columns in relational databases (PostgreSQL, MySQL, MariaDB, SQL Server…). >>>
How to Use GROUP BY on Multiple Columns in SQL
Learn how to use GROUP BY on multiple columns in SQL. >>>
Difference Between Joins and Subqueries
Learn the difference between joins and subqueries. >>>
How to Ignore an Index in an SQL Query
Learn about running an SQL query by excluding all or specific indexes. >>>