Reserved words

Informix®

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

For example:

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.

Netezza®

In Netezza, SQL object names like table and column names cannot be SQL reserved keywords.

Solution

Table or column names which are Netezza reserved keywords must be renamed.

See the Netezza SQL Reference guide for a list of reserved keywords.