Appendix C
SQL Syntax Summary
This appendix contains a summary of SQL syntax used throughout this book. The first table (Table C.1) describes SQL statements, arranged alphabetically by command. The notation is as follows:
▪ Keywords that must be typed exactly as they appear are in uppercase characters, such as REFERENCES.
▪ Parts of commands that are determined by the user appear in italics and name the item that must be supplied, such as table_name.
▪ Optional portions of a command are surrounded by brackets ([ and ]).
▪ Portions of commands that form a single clause are grouped within braces ({ and }).
▪ Sets of options from which you choose one or more are separated by vertical lines (|).
▪ Portions of commands that may be repeated as needed ...