HP 3000 Manuals HP 3000 Manuals
TurboIMAGE/XL Database Management System DBChange Plus Technical Addendum for MPE/iX Release 4.0 HP Part No. 36386-90005 Printed in U.S.A. Edition First Edition E0692
________________________________________________________________________ |The information contained in this document is subject to change | |without notice. | | | |Hewlett-Packard makes no warranty of any kind with regard to this | |material, including, but not limited to, the implied warranties of | |merchantability or fitness for a particular purpose. Hewlett-Packard | |shall not be liable for errors contained herein or for direct, | |indirect, special, incidental or consequential damages in connection | |with the furnishing or use of this material. | | | |Hewlett-Packard assumes no responsibility for the use or reliability | |of its software on equipment that is not furnished by Hewlett-Packard.| | | |This document contains proprietary information which is protected by | |copyright. All rights are reserved. Reproduction, adaptation, or | |translation without prior written permission is prohibited, except as | |allowed under the copyright laws. | ________________________________________________________________________ Copyright (c)1992 by Hewlett-Packard Company ________________________________________________________________________ |Use, duplication, or disclosure by the U.S. Government is subject to | |restrictions as set forth in subparagraph (c) (1) (ii) of the Rights | |in Technical Data and Computer Software clause at DFARS 252.227-7013. | |Rights for non-DoD U.S. Government Departments and agencies are as set| |forth in FAR 52.227-19 (c) (1,2). | | | |Hewlett-Packard Company | |3000 Hanover Street | |Palo Alto, CA 94304 U.S.A. | ________________________________________________________________________ Restricted Rights Legend Printed 1992 Printing History The following table lists the printings of this document, together with the respective release dates for each edition. The software version indicates the version of the software product at the time this document was issued. Many product releases do not require changes to the document. Therefore, do not expect a one-to-one correspondence between product releases and document editions. Edition Date Software Version --------------------------------------------------------------------------------------- First Edition June 1992 36836-A.01.00 Preface With this release of DBChange Plus, you are introduced to a new document type called a technical addendum. This document exists to introduce the new functionality contained in this version of the product. It is meant to supplement the DBChange Plus User's Guide. The information contained in this document will be incorporated into the next edition of the manual. Introducing MPE/iX MPE/iX, Multiprogramming Executive with Integrated POSIX, is the latest in a series of forward-compatible operating systems for the HP 3000 line of computers. In Hewlett-Packard documentation and in talking with HP 3000 users, you will encounter references to MPE XL, the direct predecessor of MPE/iX. MPE/iX is a superset of MPE XL. All programs written for MPE XL will run without change under MPE/iX, and you can continue to use MPE XL system documentation. What This Document Contains This technical addendum describes the new E data type supported by the TurboIMAGE/XL database management system. This data type is used for data stored in IEEE format on an MPE/iX system and is fully supported in the TurboIMAGE, DBChange Plus, and QUERY/3000 products. Read this document to learn how to include data items of type E in TurboIMAGE/XL databases and how to convert your data if it already is stored in IEEE data format. Each chapter in this document assumes a knowledge of the DBChange Plus product. New users should read chapters 1, 2, and 4. Experienced users should read chapter 1 and refer to chapters 3 and 4 for IEEE data type usage. The chapters are organized as follows: Chapter 1 introduces you to the new data type. A diagram of the formats of IEEE and HP 3000 reals is included for comparison purposes. Chapter 2 contains a tutorial of various tasks in which data items of type E are added to a database and data items of other types are converted to type E. Chapter 3 provides the syntax and a brief description of the revised ADD ITEM, CHANGE ATTRIBUTES, and CHANGE ITEM commands. For additional information on these commands, refer to the DBChange Plus guide. Also in this chapter is the BASE command, which is not impacted by this release but is included to clarify the function of the NEW option. Chapter 4 provides the new and revised messages related to the IEEE data type. This chapter supplements Appendix A of the DBChange Plus guide. Conventions UPPERCASE In a syntax statement, commands and keywords are shown in uppercase characters. The characters must be entered in the order shown; however, you can enter the characters in either uppercase or lowercase. For example: COMMAND can be entered as any of the following: command Command COMMAND It cannot, however, be entered as: comm com_mand comamnd italics In a syntax statement or an example, a word in italics represents a parameter or argument that you must replace with the actual value. In the following example, you must replace filename with the name of the file: COMMAND filename punctuation In a syntax statement, punctuation characters (other than brackets, braces, vertical bars, and ellipses) must be entered exactly as shown. In the following example, the parentheses and colon must be entered: (filename):(filename) underlining Within an example that contains interactive dialog, user input and user responses to prompts are indicated by underlining. In the following example, yes is the user's response to the prompt: Do you want to continue? >> yes { } In a syntax statement, braces enclose required elements. When several elements are stacked within braces, you must select one. In the following example, you must select either ON or OFF: COMMAND { ON } { OFF} [ ] In a syntax statement, brackets enclose optional elements. In the following example, OPTION can be omitted: COMMAND filename [OPTION] When several elements are stacked within brackets, you can select one or none of the elements. In the following example, you can select OPTION or parameter or neither. The elements cannot be repeated. COMMAND filename [ OPTION ] [ parameter] Conventions (continued) [...] In a syntax statement, horizontal ellipses enclosed in brackets indicate that you can repeatedly select the element(s) that appear within the immediately preceding pair of brackets or braces. In the example below, you can select parameter zero or more times. Each instance of parameter must be preceded by a comma: [,parameter][...] In the example below, you only use the comma as a delimiter if parameter is repeated; no comma is used before the first occurrence of parameter: [parameter][,...] |...| In a syntax statement, horizontal ellipses enclosed in vertical bars indicate that you can select more than one element within the immediately preceding pair of brackets or braces. However, each particular element can only be selected once. In the following example, you must select A, AB, BA, or B. The elements cannot be repeated. { A} |...| { B} ... In an example, horizontal or vertical ellipses indicate where portions of an example have been omitted. _ In a syntax statement, the space symbol _ shows a required blank. In the following example, parameter and parameter must be separated with a blank: (parameter)_(parameter) The symbol indicates a key on the keyboard. For example, RETURN represents the carriage return key or Shift represents the shift key. CTRLcharacterCTRLcharacter indicates a control character. For example, CTRLY means that you press the control key and the Y key simultaneously.