There are several reasons why it is preferred to use
parameters in SQL statements:
- Security:
Using parameters in SQL statements helps prevent SQL injection attacks. When
you use parameters, the values are treated as data, not as part of the SQL
code, so an attacker cannot modify the SQL code itself.
- Performance:
When you use parameters in SQL statements, the database can cache the execution
plan for the statement, which can lead to better performance when executing the
same statement multiple times with different values.
- Reusability:
When you use parameters in SQL statements, you can reuse the same statement
multiple times with different values, reducing the amount of code you need to
write and maintain.
- Readability:
Using parameters in SQL statements can make the code easier to read and
understand, especially when the same value is used in multiple places in the
same statement.
Overall, using parameters in SQL statements is a best practice that can improve the security, performance, reusability, and readability of your code.