Array vs. Table: Which Data Structure Fits Your Needs
Array is a fixed-size list of items accessed by position; Table is a grid of rows and columns, each cell holding data.
People picture both as grids, so they call any sheet an “array” and any list a “table,” mixing the names even when the data structure behind them is different.
Key Differences
Arrays are one-dimensional or multi-dimensional, optimized for quick look-ups by index. Tables are two-dimensional, excel-like structures, ideal for labeled columns and relational queries.
Which One Should You Choose?
Need fast, simple lists? Pick an Array. Need labeled rows, joins, or human-readable reports? Go with a Table.
Examples and Daily Life
A playlist order is an Array. A grocery receipt is a Table—each item, price, and quantity in its own cell.
Can an Array act like a Table?
Yes, by nesting arrays you can mimic rows and columns, but you lose built-in labels and queries.
When is a Table overkill?
For tiny, static lists like days of the week, an Array keeps code lighter.
Do spreadsheets use Arrays or Tables?
Spreadsheets present Tables to users, yet internally store data in grid-like Arrays for speed.