The labeling rules are basically same as for C. These types of labels cannot be used:

• Labels that begin with uppercase letters SQL
• Labels that begin with lowercase letter p_
• Labels that begin with lowercase letters pd

For naming embedded variables, indicator variables, and branching destination labels, the labeling rules and the C rules must be followed.

• The notation // can be used to indicated a comment statement.
• Members of an object cannot be used as embedded variables.
• An object method cannot be specified in the WHENEVER statement.
• An SQL statement cannot be coded in a class definition.

All other coding rules are the same as for C. For details, see 7.2.1(2) SQL coding rules.