CREATE TABLE TRN_SAAA
(
   TRN_ST   NUMBER (30) NOT NULL,
   TRN_SE            NUMBER (30) NOT NULL, 
   CHKD                  VARCHAR2 (1) DEFAULT 'N' NOT NULL,
);
 
ALTER TABLE TRN_STL ADD CONSTRAINT XPK PRIMARY KEY (TRN_STLN);
ALTER TABLE TRN_STLM ADD CONSTRAINT XFK1 FOREIGN KEY  (TRN_S) REFERENCES  TRN_SE;


##</code><code>##

SQL> @C:\Users\aaa\Desktop\DBScripts\M_sample.sql