sql interview questions what is dynamic sql

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sql interview questions what is dynamic sql
Dynamic SQL involves constructing and executing SQL statements during runtime rather than compile time. It enables flexible query generation based on dynamic conditions or inputs. In languages like Java or C#, string concatenation or placeholders facilitate dynamic SQL in embedded code, while stored procedures in database systems can use dynamic SQL internally. While powerful, it demands caution to prevent SQL injection, ensuring proper validation and sanitization of user inputs incorporated in dynamic queries.
Dynamic SQL refers to the creation and execution of SQL statements at runtime rather than at compile time. In other words, instead of having a static SQL query that is known at the time the program is written or compiled, dynamic SQL allows you to construct SQL statements dynamically during program execution.

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ALTER TABLE table_name
MODIFY column_name data_type NOT NULL;