Reserved words

Informix®

With Informix, it is possible to create database objects with reserved words.

CREATE TABLE table ( char CHAR(10) );

Indeed this is not good practice, but Informix SQL allows this to be backward compatible when introducing a new keyword in the SQL syntax.

Most other database systems do not allow reserved words as database identifiers. If your legacy code is using SQL reserved words of the target database SQL syntax, an error will be thrown at CREATE TABLE execution.

SAP HANA®

Even if SAP HANA allows SQL reserved keywords as SQL object names when using double-quotation marks, it is still recommended that you check your existing database schema for use of SAP HANA reserved words.

Solution

See SAP HANA documentation for reserved keywords.