Left Join vs Right Join Table of content The main difference between the Left Join and Right Join can be observed in the way tables are joined. They are both types of Outer Joins; that is, they retain unmatched rows in one table and discard the unmatched rows of another. Left Join preserves the unmatched […]
Category Archives: sql
SQL – Hosting Table of content SQL Hosting SQL Hosting is nothing but a means to manage any RDBMS linked to your website using SQL. If the website has an access to a RDBMS, any data from the website you created will be stored and retrieved from this database. There are various SQL hosting plans […]
SQL – Foreign Key Table of content The SQL Foreign Key In SQL, a Foreign Key is a column in one table that matches a Primary Key in another table, allowing the two tables to be connected together. A foreign key also maintains referential integrity between two tables, making it impossible to drop the table […]