set names Utf8;
set Sql Dialect 3;
create database 'test.fdb' user 'SYSDBA' password 'masterkey' page_size 16384 default character set Utf8;

CREATE COLLATION nums_coll FOR UTF8 FROM UNICODE CASE INSENSITIVE 'NUMERIC-SORT=1';
CREATE DOMAIN dm_nums AS varchar(20) CHARACTER SET UTF8 COLLATE nums_coll;
CREATE TABLE wares(articul dm_nums);

/******************************************************************************/
/***          Generated by IBExpert 2014.12.9.1 19.12.2014 7:50:45          ***/
/******************************************************************************/
SET SQL DIALECT 3;
SET NAMES UTF8;
CREATE DATABASE 'test.fdb' USER 'SYSDBA' password 'masterkey' PAGE_SIZE 16384 DEFAULT CHARACTER SET UTF8 COLLATION UTF8;
CREATE DOMAIN DM_NUMS AS VARCHAR(20) CHARACTER SET UTF8 COLLATE NUMS_COLL;
CREATE TABLE WARES (    ARTICUL  DM_NUMS );

=== Line: 7 ===================================================================
********* Statement: CREATE DOMAIN DM_NUMS AS VARCHAR(20) CHARACTER SET UTF8 COLLATE NUMS_COLL

********* Error:
Undefined name. Dynamic SQL Error. SQL error code = -204. 
Data type unknown. COLLATION NUMS_COLL for CHARACTER SET UTF8 is not defined.

=== Line: 8 ===================================================================
********* Statement: CREATE TABLE WARES (     ARTICUL  DM_NUMS )

********* Error:
This operation is not defined for system tables. Dynamic SQL Error. SQL error code = -607.
Invalid command. Specified domain or source column DM_NUMS does not exist.