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Why dynamic SQL is bad?
It is vulnerable to SQL injection which could hamper the security a lot. It is very complex in nature as the query plan is built on the fly. It is difficult to understand how the query is going to form. If sp_executesql is not used for calling the procedure, then the execution plan cannot be reused.
Should I use dynamic SQL?
You should use dynamic SQL in cases where static SQL does not support the operation you want to perform, or in cases where you do not know the exact SQL statements that must be executed by a PL/SQL procedure. These SQL statements may depend on user input, or they may depend on processing work done by the program.
Is Sp_executesql faster?
sp_executesql Is Not Faster Than an Ad Hoc Query.
Which is an example of a type coercion?
Type coercion is the automatic conversion of a datum from one data type to another within an expression. Coercion occurs because the datum is stored as one data type but its context requires a different data type.
When to use dynamic type in C # 4.0?
In C# 4.0, a new type is introduced that is known as a dynamic type. It is used to avoid the compile-time type checking. The compiler does not check the type of the dynamic type variable at compile time, instead of this, the compiler gets the type at the run time.
What happens when you assign a class to a dynamic type?
When you assign a class object to the dynamic type, then the compiler does not check for the right method and property name of the dynamic type which holds the custom class object. You can also pass a dynamic type parameter in the method so that the method can accept any type of parameter at run time. As shown in the below example.
How is a dynamic variable created in C #?
The compiler does not check the type of the dynamic type variable at compile time, instead of this, the compiler gets the type at the run time. The dynamic type variable is created using dynamic keyword. In most of the cases, the dynamic type behaves like object types.