you can use isql , but I advise you to use api directly.
isql -input test.sql
test.sql is as follows:
SET SQL DIALECT 3;
SET NAMES UNICODE_FSS;
CREATE DATABASE 'D:\testdata.fdb'
USER 'SYSDBA' PASSWORD 'masterkey'
PAGE_SIZE 16384
DEFAULT CHARACTER SET UNICODE_FSS;
CREATE TABLE CUSTOMERS (
CUST_ID INTEGER NOT NULL,
CUST_NAME INTEGER,
CUST_UNISITE INTEGER
);
CREATE TABLE SMS_DETAIL (
SD_ID INTEGER NOT NULL,
SD_MESSAGE_DATA VARCHAR(160)
);
creating a database using api
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