DataBasic Elements

This section describes the elements of the DataBasic language including: statements, labels, comments, blank spaces, program item-ids, subroutines and reserved words, literals, symbols and variables, assignment to variables, and arrays. It goes on to discuss more complex elements including: THEN/ELSE and ON ERROR conditional clauses, format strings, conversion codes, execution and item locks, dimensioned and dynamic arrays, and the use of indexes.

• Program Elements.
• Subroutines.
• Including Common Code.
• Literals, Symbols and Variables.
• Assignments.
• Arithmetic Expressions
• String Expressions and Concatenation.
• Substring Extraction.
• Substring Assignment.
• Relational Expressions.
• Logical Expressions.
• Assignment Operators.
• Using the THEN/ELSE and ON ERROR Clauses.
• Format Strings.
• Conversions.
• Execution and Item Locks.
• Introducing Arrays.
• Dimensioned Arrays.
• Dynamic Arrays.
• Dynamic Arrays vs. Dimensioned Arrays.
• Using Indexes.