The following are the data types that are included in String data:
- Text: This contains any string of alphanumeric characters. In a table, a Text field can be from 1 to 250 characters long. In working storage within an object, a Text variable can be any length if there is no length defined. If a maximum length is defined, it must not exceed 1,024. Business Central does not require a length to be specified, but if we define a maximum length, it will be enforced. When calculating the length of a record for design purposes (relative to the maximum record length of 8,000 bytes), the full defined field length should be counted.
- Code: Help says the length constraints for Code variables are the same as those for text variables, but the AL editor enforces limits of 1 to 250 characters in length. All of the letters are automatically converted into uppercase when data is entered into a Code variable; any leading or trailing spaces are removed.
- TextBuilder: Allows for easy string manipulation...