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ftParams

ftParams = 47

Example​

function IsParamsObject(DataType: TFieldType): Boolean;
begin
  Result := DataType = ftParams;
end;

Usage​

ftParams identifies a live TParams collection in object-parameter marshalling rather than one parameter value.

Additional Technical Info​

ftParams is ordinal 47 of TFieldType. It marks a TParams object in parameter marshalling; it is not the type of an individual SQL parameter and has no default ordinary field class.

The collection contains named/positional TParam objects whose own DataType, direction, Null/value and size metadata remain independently significant. The enum does not transfer ownership. Do not free, reorder or retain the collection unless the API explicitly permits it, and never log credential/secret parameter values.

When copying parameters, preserve direction, names, types and Null rather than copying display strings alone.

The example only compares metadata and was source-reviewed; no parameter collection, query, database, runtime or image test ran.

External references

Created 2026-07-15