I have heard that I can prevent SQL injection attacks by using parameterized queries, but I do not know how to write them. How would I write the following as a parameterized query? SqlConnection.
The only tutorial I've found so far on what seems to be what I want to do is this: Passing Parameters To SQL Queries With Value.NativeQuery() In Power Query And Power BI. However, in that example it doesn't make sense to me that the parameters get their values from the declaration within the Power Query statement and not from Power BI.
To understand why you need to use a parameterized query to avoid SQL Injection over a concatenated inline query you need to understand SQL Injection. SQL Injection In SQL Injection, when an end user sends some invalid input to a CRUD operation or forcibly executes the wrong query into the database, that can be harmful for the database.The first parameter is the SQL query; The second parameter represents that you can include parameter placeholders in the SQL query string and then supply parameter values as additional arguments. Any parameter values you supply will automatically be converted to a DbParameter and it's an optional parameter.Some databases, like SQL Server, send incoming queries through a compilation process. The database caches each query, and reuses the compiled version when a request for the identical query arrives. By embedding user-supplied text in the body of the query, there is little or no chance that a previous query will be reused, increasing the need for query parsing and compiling.
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