Operators, Conditions, and Pseudocolumns
In this chapter:
What is precedence?
What is an operator and what is available?
What is a condition and what is available?
What are pseudocolumns and what is available?
Note: Backus-Naur Form syntax angle brackets are used syntactically in this chapter to represent substitution of all types. For example, <expression> = <expression>.
Operators, conditions, and pseudocolumns are used and often explained throughout this book. This chapter may duplicate parts of other chapters with the intention of including all specific details in a single chapter. Additionally, some of the content of this chapter is common to many software products. Need it be repeated? Yes, because this title is intended for use as ...