Operators

Articles

• The == operator

  The == operator (or its inverse !==) is used for making record selections based on regular expressions. They can therefore enable extremely (...)

• The "!" operator

  Conditional criteria of simple negation, when operating on fields that are external to the table (fields accessed by a join to another table), do (...)

• The IN operator

  There are some other operators that allow for more specific selections. The IN operator selects records based on a list of possible matching (...)

• Simple operators

  All of the criteria that perform selections based on SQL field values have a certain number of operators available for their use.
  field (...)