What is the purpose of using a derived field in SQL?
Query
Which of the following is used to pass input values to a SQL parameter query?
Which SQL keyword is used to sort data in ascending or descending order?
The SELECT statement is used to data from a database table.
What is SQL injection?
Parameterized query
In SQL, statements (e.g., IF, CASE) are used to perform different actions based on different conditions.
What is a SELECT query?
When using a parameter query, the user is prompted to enter a for the parameter.
In SQL, an function (e.g. AVG,SUM) is used to perform calculations on a set of values and return a single value.
Database View Query
When constructing SQL queries dynamically, it's important to always sanitize and validate to prevent SQL injection attacks. Use parameterized queries or prepared statements to bind the user input to the query.
Views can be used to combine data from multiple into a single view.
An effective way to prevent SQL injection attacks is to implement strong and authorization mechanisms. Only authenticated and authorized users should be allowed to access the database.
The purpose of a view is to provide a representation of data stored in tables.
In SQL, derived fields can be used in the clause to filter the results based on the calculated values.
The INSERT INTO statement is used to new records into a database table.
Derived fields can be renamed using the SQL keyword in the SELECT statement.
