An expression is a combination of constants, variables, random variables, functions, parentheses and operators that yields a single value. Silk Performer distinguishes among the following expressions:

  • Relational expressions
  • Boolean expressions
  • Numeric expressions
  • String expressions

The following special Silk Performer functions can be used in expressions:

  • Type conversion functions (chr, ord, string, number, float)
  • High-level database functions (rows, rc, eos)
  • Random types (RndUniN)