upload to apex

[pzamanis]

please write detailed info about uploading the files in apex (desktop not cloud)
for ex i do not find a way using the database file

thanks in advance for your help and sharing the code

[pzamanis]

also i have this error when importing sql
APPLICATION USER NOT FOUND
Contact your application administrator.

Technical Info (only visible for developers)
is_internal_error: true
ora_sqlcode: -942
ora_sqlerrm: ORA-00942: table or view does not exist ORA-06512: at "APEX_220100.WWV_FLOW_DYNAMIC_EXEC", line 1482 ORA-06512: at "APEX_220100.WWV_FLOW_DYNAMIC_EXEC", line 2635 ORA-06512: at "SYS.WWV_DBMS_SQL_APEX_220100", line 774 ORA-06512: at "SYS.DBMS_SYS_SQL", line 1503 ORA-06512: at "SYS.WWV_DBMS_SQL_APEX_220100", line 763 ORA-06512: at "APEX_220100.WWV_FLOW_DYNAMIC_EXEC", line 1852 ORA-06512: at "APEX_220100.WWV_FLOW_DYNAMIC_EXEC", line 2587 ORA-06512: at "APEX_220100.WWV_FLOW_DYNAMIC_EXEC", line 2649 ORA-06512: at "APEX_220100.WWV_FLOW_DYNAMIC_EXEC", line 1468
component.type: APEX_APPLICATION_COMPUTATIONS
component.id: 32148191961242494
component.name: P1_APPLICATION_NAME
error_backtrace:
ORA-06512: at "SYS.DBMS_SYS_SQL", line 1503
ORA-06512: at "SYS.WWV_DBMS_SQL_APEX_220100", line 763
ORA-06512: at "APEX_220100.WWV_FLOW_DYNAMIC_EXEC", line 1482
ORA-06512: at "APEX_220100.WWV_FLOW_DYNAMIC_EXEC", line 2635
ORA-06512: at "SYS.WWV_DBMS_SQL_APEX_220100", line 774
ORA-06512: at "SYS.DBMS_SYS_SQL", line 1503
ORA-06512: at "SYS.WWV_DBMS_SQL_APEX_220100", line 763
ORA-06512: at "APEX_220100.WWV_FLOW_DYNAMIC_EXEC", line 1852
ORA-06512: at "APEX_220100.WWV_FLOW_DYNAMIC_EXEC", line 2587
ORA-06512: at "APEX_220100.WWV_FLOW_DYNAMIC_EXEC", line 2649
ORA-06512: at "APEX_220100.WWV_FLOW_DYNAMIC_EXEC", line 1468
ORA-06512: at "APEX_220100.WWV_FLOW_COMPUTATION", line 94
error_statement:
SELECT /+qb_name(apex$102_9999)/COMPANY_NAME FROM OTSL_USERS WHERE USER_NAME=:APP_USER

and i cannt run it