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Application of SQL Commands for Structure Creation and Alteration

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  Application of SQL Commands for Structure Creation and Alteration Structured Query Language (SQL) is a powerful language used to interact with and manage relational databases. Among the many operations SQL supports, creating and altering database structures are fundamental for defining how data is stored and organized. These operations typically involve creating tables, modifying existing tables, and defining or altering constraints. 1. Structure Creation Structure creation in SQL usually involves creating a new database, table, or other database objects (like indexes, views, or schemas). The most common use case is creating tables that define the structure of data. Creating a Table The CREATE TABLE statement is used to define a new table along with its columns and data types. Syntax : CREATE TABLE table_name ( column1 datatype [constraints], column2 datatype [constraints], ... columnN datatype [constraints] ); EXAMPLE CREATE TABLE Employees ( EmployeeID INT PRI...