Question 1

Is Dapper Query Builder safe from SQL injection?

Accepted Answer

Yes, it automatically parameterizes interpolated values like {variable} to prevent injection, but caution is needed with the :raw modifier for dynamic SQL parts, which requires manual sanitization to avoid risks.

Question 2

How to use async methods with Dapper Query Builder?

Accepted Answer

The library provides async extensions such as QueryAsync<T> and ExecuteAsync, similar to Dapper's async methods, allowing non-blocking database operations while maintaining the same query-building syntax.

Question 3

Dapper Query Builder vs Dapper.SqlBuilder: which is better?

Accepted Answer

Dapper Query Builder uses string interpolation for a more intuitive syntax, while Dapper.SqlBuilder relies on template classes and anonymous objects; Query Builder is easier for dynamic filters but has the raw modifier risk.

Question 4

How to build dynamic WHERE clauses in Dapper Query Builder?

Accepted Answer

Use the /**where**/ keyword in your query and chain .Where() methods with interpolated strings, or append filters directly with +=; the library handles parameterization and spacing automatically.

Question 5

Can Dapper Query Builder work with PostgreSQL?

Accepted Answer

Yes, it's database agnostic and tested with PostgreSQL via Npgsql, using parameter prefixes like @p0 that are compatible with most ADO.NET providers, though you can customize the prefix if needed.

Question 6

What happens if I misuse the raw modifier?

Accepted Answer

Misusing :raw can lead to SQL injection, as it embeds strings directly without parameterization; always validate or sanitize user inputs when using this feature, as emphasized in the README warnings.

DapperQueryBuilder

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