Using ROWIDs

Automatic ROWIDs is not a common database feature.

Rowids are implicit primary keys generated by the database engine. Not all database servers support rowids:

Table 1. Database server support of rowid
Database Server Type Rowid keyword? Rowid type?
Genero db ROWID INTEGER
IBM® DB2® UDB none none
IBM Informix® (1) ROWID INTEGER
Microsoft™ SQL Server (2) none none
MySQL none none
Oracle Database Server ROWID CHAR(18)
PostgreSQL OID internal type
Sybase ASE none none
SQLite ROWID BIGINT

Informix fills the SQLCA.SQLERRD[6] register with the ROWID of the last updated row. This register is an INTEGER and cannot be filled with rowids having CHAR(*) type.

Search for ROWID and SQLCA.SQLERRD[6] in your code and review the code to remove the usage of rowids.