[fpc-pascal] Create dynamic SQL according to available params

[Luiz Americo Pereira Camara]

I enconter the following pattern frequently (simplified):

SQL:
Select * From Customers Where FieldX = 1

Later i need a similar query that uses a different filter like

Select * From Customers Where FieldX = 1 and FieldY = :paramy

Is there any code that given a SQL Template would generate the second
filter when paramy is available and keep blank when not available?

Like
Select * From Customers Where FieldX = 1 ${paramtemplate paramy}

The param not necessarily have to be in TParams, in my case the param is
both in a JSON object and in TParams

If there's not in pascal, someone knows such templating in another
languages? The hard part is getting a flexible and functional syntax

Luiz
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