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ENGLISH:
Hello,

Query.SQL.Text: = 'SELECT * FROM STORECARS.Code = :Code'
Query.Prepare;

Evaluate Query.FieldDefs [0]. DataType = ftUnknown

How do I keep TMSQuery returned the correct data type parameter?

The solution is somehow characteristic DescribeParams how to turn it on and use?
Thank you for your reply.

CZECH:
Dobrý den,

Query.SQL.Text := 'SELECT * FROM STORECARS.Code = :Code'
Query.Prepare;

Query.FieldDefs[0].DataType = ftUnknown

Jak zajistím, aby TMSQuery vrátilo správný datový typ parametru?

Řeší to nějak vlastnost DescribeParams, jak jí zapnout a používat?
Děkuji za odpoveď.

To solve the problem set the TMSQuery.Options.DescribeParams property to True.

thank you