Simple Arithmetic Operation#

Suppose there is a variable, and we substitute a value into it and perform the arithmetic operation indicated in the illustration below, that is: $Variable Name + 100.

If in the first example the number 100 is enclosed in quotes, it will no longer be a numerical operation, but a string operation, i.e., one string is added to another string, and the text value contained in the variable will have the value “100” appended as part of the string.

Properties of Composite Data Types

Some composite data types have the ability to invoke properties or functions. For example, the table MyTable has a property Rows, and this property has a property Count. The expression MyTable.Rows.Count allows you to get the number of rows in the given table.