The arcades are supported by two rows of stone Corinthian columns. It consists of columns and rows. Likewise, with other columns and rows. A relation is a table with columns and rows. Now draw lines through all marked columns and unmarked rows. It is possible to consider matrices with infinitely many columns and rows. Data storage is a database, which is a collection of tables with typed columns. The capitals of the freestanding columns are not identical. Closely spaced interconnected exterior columns form the tube. The entire structure weighs some , supported by internal brick columns. The stairs and elevator are supported by four wrought iron columns each. It had six rough Doric columns on the portico. Let's assume that we have a table named with three columns, namely and . It rests on a series of arcades supported by white marble columns. These cortical microcircuits are grouped into cortical columns and minicolumns.