Steps to reproduce:
1. Run make dbschema, cd to database/oracle
2. Load schema.sql and images.sql with sqlplus as described in the manual
3. Log in with sqlplus, then from sqlplus command prompt:
Find a line which inserts record for item with id 31055 (for Zabbix 5.0.4rc1). It has two problems:
1. The field param starts with concatenation operator "||".
2. The line is too long for sqlplus.
gen_data.pl has a special processing for long fields which is used for media types. This processing generates wrong SQL lines for items.