DISC

Contents | What's New | Quick Links

 

SQL Reference - SELECT Statement Syntax

Introduction

Software Installation

Concepts and Design

Designing Applications

Omnidex Environments

SQL Reference

Omnidex API's

Utilities

Interfaces

Performance Guide

Troubleshooting Guide

Appendix

 

 

ORDER BY Clause

SELECT Statement GROUP BY ClauseSELECT Statement Criteria Conditioning

 

Click for more detailsColumn Names

Click for more detailsColumn Alias

Click for more detailsSelect List Item Ordinal Numbers

Click for more detailsAggregates, Functions, Expressions

Click for more detailsASC, DESC

 

SELECT Statement Syntax

Select List Items

FROM Clause

WHERE Criteria

GROUP BY Clause

ORDER BY Clause

Criteria Conditioning

 

SQL Language Reference

ON CURSOR | INSTANCE

WITH Options

Commands

Functions

Column Names

SELECT company, contact, phone FROM customers ORDER BY company

SELECT company, contact, phone FROM customers ORDER BY company, contact

SELECT company, contact, phone FROM customers ORDER BY state

 

Column Alias

SELECT company CO, contact CT, phone PH FROM customers ORDER BY CO

SELECT company, contact, phone FROM customers ORDER BY CO, CT

 

Select List Item Ordinal Numbers

SELECT company, contact, state FROM customers ORDER BY 3

SELECT company, contact, state FROM customers ORDER BY 3, 1

 

Aggregates, Functions, Expressions

SELECT customer_no, sum(amount) FROM orders GROUP BY customer_no ORDER BY 2

SELECT customer_no, count(distinct order_no) FROM orders GROUP BY customer_no
ORDER BY 2, 1

 

ASC, DESC

DESC (Descending) sorts will NOT be optimized, meaning they may increase the overall elapsed query time. ASC (Ascending) sorts may be optimized, depending on the index installation.

SELECT company, contact, phone FROM customers ORDER BY company asc

SELECT customer_no, count(distinct order_no) FROM orders GROUP BY customer_no
ORDER BY 2 DESC, 1 ASC

 

top

Dynamic Information Systems Corporation - Omnidex Version 3.8 Build 6 J15.03-Copyright © 2003

DISC | Documentation Home