DBMS

Key Differences between DDL vs DML Data Definition Language (DDL) helps you to define the database structure or schema, while Data Manipulation Language (DML command) allows you to manage the data stored in the database. The DDL command is used to create the database schema, while the DML command is used to populate and manipulate…

Key Difference between Rows and Column A row is a series of data put out horizontally in a table or spreadsheet, while a column is a vertical series of cells in a chart, table, or spreadsheet. Rows go across from left to right. On the other hand, Columns are arranged from up to down. In…

Key Difference between Primary Key and Unique Key There can be one primary key in a table, while there can be multiple unique keys in the table. The purpose of the primary key is to enforce entity integrity; on the other hand, the purpose of the unique key is to enforce unique data. In primary…