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 <=
 Less than or equal--binary                      (Relational)
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 Syntax

     <exp1> <= <exp2>

 Type

     Character, date, logical, memo, numeric

 Operands

     <exp1> and <exp2> are expressions of the same data type to
     compare.

 Description

     <= (less than or equal) is a binary operator that compares two values of
     the same data type and returns true (.T.) if <exp1> is less than or
     equal to <exp2>.

     .  Character: The comparison is based on the underlying ASCII
        code.  ASCII codes for alphabetic characters are ascending (e.g., the
        code for "A" is 65 and the code for "Z" is 90).

     .  Date: Dates are compared according to the underlying date
        value.

     .  Logical: False (.F.) is less than true (.T.).

     .  Memo: Treated the same as character.

     .  Numeric: Compared based on magnitude.

 Examples

     .  To illustrate how the less than or equal operator (<=) behaves
        with different data types:

        // Character
        ? "Z" <= "A"             // Result: .F.
        ? "ZA" <= "A"            // Result: .F.
        ? "Z" <= "AZ"            // Result: .F.

        // Date
        ? CTOD("12/12/88") <= ;
           CTOD("12/11/88")      // Result: .F.

        // Logical
        ? .F. <= .T.             // Result: .T.

        // Numeric

        ? 2 <= 1                 // Result: .F.
        ? 1 <= 2                 // Result: .T.
        ? 1 <= 1                 // Result: .T.