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ftCursor

ftCursor = 22

Example​

function IsOutputCursor(DataType: TFieldType): Boolean;
begin
  Result := DataType = ftCursor;
end;

Usage​

ftCursor identifies an Oracle stored-procedure output cursor parameter rather than a normal field value.

Additional Technical Info​

ftCursor is ordinal 22 of TFieldType. Embarcadero defines it for an Oracle stored-procedure output cursor (TParam only). The installed default field-class table contains no ordinary field class for it.

The value is a result-set handle contract, not a numeric cursor position or a dataset row. The Oracle driver controls when the returned dataset becomes available, who owns it, whether it is forward-only and how long it remains valid relative to the command, transaction and connection.

Do not persist the ordinal as an external type code or assume the output can be read after closing its command/connection. Validate direction and provider support before execution, and fully process/close the cursor according to the calling API.

The example only compares metadata and was source-reviewed; no Oracle procedure, cursor, dataset, database, runtime or image test ran.

External references

Created 2026-07-15