Syntax:
[table.|alias.]field1 [AS fieldalias1] [, [table.|alias.]field2 [AS fieldalias2][, ...]]
The parts of this clause have the following meaning:
| Part | Meaning |
| table | The table from which the data is retrieved |
| alias | An alias, defined in the SELECT statement's tablespec clause |
| field1, field2 | The fields containing the required data |
| fieldalias1, fieldalias2 | The column heading for the returned row |