Sql

Indexes in SQL are a great way to identify and organize records. Indexing a column can also optimize queries as it reduces overhead and improves efficiency on frequently referenced columns. There are different types of SQL indexes, though this blog focuses on the contrast between clustered and non-clustered indexes. Clustered Index A clustered index points to a block of physical data and does not require a separate table for the indexed column values as it directly identifies a record in a table....

In this blog post, I will do a short walk-through on the use of the SQL join clause and its types to retrieve related data between two tables on a simple blogging database. Come and join the venture beyond SQL. What is a SQL join? A JOIN clause is used to combine records or rows between one or more tables through a related column that references another record....