DB2 Data Types Every column in a table has a name and a data type. The data type tells DB2 how much physical storage to set aside for the column and the form in which the data are stored. DB2 uses IBM ...

To learn more about SQL data types, read “SQL basics: String data types,” which covers general data-type usage and describes using the various string data types, and “SQL basics: Number data ...

Data is stored in columns instead of rows as in a conventional SQL system. Any number of columns (and therefore many different types of data) can be grouped or aggregated as needed for queries or ...