SQL> DESC BLOB_TABLE;
Name Type    Nullable Default Comments 
---- ------- -------- ------- -------- 
A    INTEGER Y                         
B    BLOB    Y        

SQL> INSERT INTO BLOB_TABLE VALUES(5,BLOB('MWDIR_TST','TEST.ZIP'));

INSERT INTO BLOB_TABLE VALUES(5,BLOB('MWDIR_TST','TEST.ZIP'))

ORA-00904: "BLOB": invalid identifier

SQL> INSERT INTO BLOB_TABLE VALUES(5,('MWDIR_TST','TEST.ZIP'));

INSERT INTO BLOB_TABLE VALUES(5,('MWDIR_TST','TEST.ZIP'))

ORA-00907: missing right parenthesis

SQL> INSERT INTO BLOB_TABLE VALUES(5,('\\MWDIR_TST\TEST.ZIP'));

INSERT INTO BLOB_TABLE VALUES(5,('\\MWDIR_TST\TEST.ZIP'))

ORA-01465: invalid hex number

SQL> INSERT INTO BLOB_TABLE VALUES(5,('\\MWDIR_TST\TEST.ZIP'));