The manuals I would get from Oracle are:
Oracle7 Server Messages and Codes Manual
Oracle7 Server Administrator's Guide
Oracle7 Server SQL Language Reference Manual
Oracle7 Server SQL Language Quick Reference
SQL*Plus Release 3.2 Quick Reference Guide
You should get the above that coordinate with the version of Oracle and SQL*Plus curently in use where you are (or who you are developing for).
Mark McCasland
Midlothian, TX USA