I need a simple and practical explanation of how to display data from an internal table in an ALV grid. I also want to understand how to improve the report by adding useful features such as column headings, sorting, filtering, totals, and layout options.

Please help with the following points:

• What is CL_SALV_TABLE and when should it be used instead of REUSE_ALV_GRID_DISPLAY or CL_GUI_ALV_GRID?
• How can we create a basic ALV report using an internal table?
• How can we define column texts and hide unwanted columns?
• How can we enable sorting, filtering, and standard toolbar functions?
• How can we add totals and subtotals for numeric fields?
• How can we set zebra pattern, optimize column width, and change the ALV title?
• How can we handle exceptions while creating an ALV object?
• How can we add a hotspot or clickable column in CL_SALV_TABLE?
• What are the limitations of CL_SALV_TABLE, especially for editable ALV reports?
• Can someone share a complete working ABAP example with sample data?

A beginner-friendly, step-by-step guide with complete ABAP code and explanation would be very helpful.