This chapter describes SQL queries and subqueries.
This chapter contains these sections:
About Queries and Subqueries
Creating Simple Queries
Hierarchical Queries
The UNION [ALL], INTERSECT, MINUS Operators
Sorting Query Results
Joins
Using Subqueries
Unnesting of Nested Subqueries
Selecting from the DUAL Table
Distributed Queries
subject
from Anonymous
Comments, corrections, and suggestions are forwarded to authors every week. By submitting, you confirm you agree to the terms and conditions. Use the OTN forums for product questions. For support or consulting, file a service request through My Oracle Support.
Scripting on this page enhances content navigation, but does not change the content in any way.
Quick Lookup
Database Library · Master Index · Master Glossary · Book List · Data Dictionary · SQL Keywords · Initialization Parameters · Advanced Search · Error Messages
Main Categories
This Document