DOCSLIB.ORG

Data Access with ADO.NET by Andrew Troelsen

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Data Access with ADO.NET by Andrew Troelsen APPENDIX Data Access with ADO.NET by Andrew Troelsen This is Chapter 13 of C#and the .NET Platform (Apress, 2001). From this point on, all references to other chapters and appendixes are to those from Troelsen and not to chapters and appendixes within Distributed .NET Programming in C#. Unless you are a video game developer by trade, you are probably interested in data­ base manipulation. As you would expect, the .NET platform defines a number of types (in a handful of related namespaces) that allow you to interact with local and remote data stores. Collectively speaking, these namespaces are known as ADO.NET, which as you will see is a major overhaul of the classic ADO object model. This chapter begins by examining some core types defined in the System.Data namespace-specifically DataColumn, DataRow, and DataTable. These classes allow you to define and manipulate a local in-memory table of data. Next, you spend a good deal of time learning about the centerpiece of ADO.NET, the DataSet. As you will see, the DataSet is an in-memory representa­ tion of a collection of interrelated tables. During this discussion, you will learn how to programmatically model table relationships, create custom views from a given table, and submit queries against your in-memory DataSet. After discussing how to manipulate a DataSet in memory, the remainder of this chapter illustrates how to obtain a populated DataSet from a Database Man­ agement System (DBMS) such as MS SQL Server, Oracle, or MS Access. This entails an examination of .NET "managed providers" and the OleDbDataAdapter and SqlDataAdapter types. The Need for ADO.NET The very first thing you must understand when learning ADO.NET is that it is not simply the latest and greatest version of classic ADO. While it is true that there is some symmetry between the two systems (e.g., each has the concept of"connec­ tion'' and "command" objects), some familiar types (e.g., the Recordset) no longer exist. Furthermore, there are a number of new ADO.NET types that have no direct equivalent under classic ADO (e.g., the DataSet). In a nutshell, ADO. NET is a new database access technology specifically geared at facilitating the development of disconnected systems using the .NET platform. N-tier applications (especially Web-based applications) are fast becom­ ing the norm, rather than the exception, for most new development efforts. 395 Appendix Unlike classic ADO, which was primarily designed for tightly coupled client/ server systems, ADO.NET greatly extends the notion of the primitive ADO disconnected recordset with a new creature named the DataSet. This type repre­ sents a local copy of any number of related tables. Using the DataSet, the client is able to manipulate and update its contents while disconnected from the data source and submit the modified data back for processing using a related "data adapter." Another major difference between classic ADO and ADO.NET is that ADO.NET has full support for XML data representation. In fact, the data obtained from a data store is internally represented, and transmitted, as XML. Given that XML is transported between layers using standard HTTP, ADO.NET is not limited by firewall constraints. As you might be aware, classic ADO makes use of the COM marshaling pro­ tocol to move data between tiers. While this was appropriate in some situations, COM marshaling poses a number oflimitations. Specifically, most firewalls are configured to reject COM RPC packets, which makes moving data between machines tricky. Perhaps the most fundamental difference between classic ADO and ADO. NET is that ADO.NET is a managed library of code and therefore plays by all the same rules as any managed library. The types that comprise ADO.NET use the CLR memory management protocol, adhere to the same programming model, and work with many languages. Therefore, the types (and their members) are accessed in the same exact manner, regardless of which .NET-aware language you use. ADO.NET: The Big Picture The types that compose ADO.NET work together for a common goal: populate a DataSet, disconnect from the data store, and return the DataSet to the caller. A DataSet is a very interesting data type, given that it represents a local collection of tables (as well as the relationships between these tables) used by the client appli­ cation. In some respects, this may remind you of the classic ADO disconnected recordset. The key difference is that a disconnected recordset represents a single table of data, whereas ADO.NET DataSets can model a collection of related tables. In fact, it is completely possible to have a client-side DataSet that repre­ sents the entire remote database. Once you have obtained a DataSet, you can perform queries against the local tables to obtain specific subsets of information as well as navigate between related tables programmatically. As you would expect, you can add new rows to a given table in the DataSet as well as remove, filter, or update existing records. Once the modifications have been made, the client then submits the modified DataSet back to the data store for processing. 396 Data Access with ADO.NET An obvious question at this point is "How do I get the DataSet?" Under the ADO.NET model, DataSets are populated through the use of a managed provider, which is a collection of classes that implement a set of core interfaces defined in the System.Data namespace ; specifically IDbCommand, IDbDataAdapter, IDbConnection, and IDataReader (see Figure 13-l). Client I The in-memory I I (disconnected) DataSet Data is transmitted between layers as XML EJ lrDbDataAdapterl IDbC011111and IDataReader I ~.. ,,,,, ,,.,,,,, plements these interfaces provide access to a IDbConnection specific type of data store r::::: ::::; Some Data Store ...... _... Figure 13-1 . Clients interacting with managed providers ADO.NET ships with two managed providers out of the box. First is the SQL provider, which provides highly optimized interactions with data stored in MS SQL Server (7.0 or higher). If the data you desire is not in an SQL Server data file, you can use the OleDb provider, which allows access to any data store that sup­ ports the OLE DB protocol. Be aware, however, that the OleDb provider uses native OLE DB (and therefore requires COM Interop) to enable data access. As you might suspect, this is always a slower process than talking to a data store in its native tongue. Other vendors will soon begin shipping custom­ managed providers for their proprietary data stores. Until then, the OleDb provider does the trick. Understanding ADO.NET Namespaces Like other aspects of the .NET universe, ADO. NET is defined in a handful of related namespaces. Table 13-1 gives a quick rundown of each. 397 Appendix Table 13-1. ADO.NET Namespaces ADO.NET NAMESPACE MEANING IN LIFE System. Data This is the core names pace of ADO.NET. It defines types that represent tables, rows, columns, constraints, and DataSets. This namespace does not define types to connect to a data source. Rather, it defines the types that represent the data itself. System.Data.Common This namespace contains the types shared between managed providers. Many of these types function as base classes to the concrete types defined by the OleDb and SqlClient managed providers. System.Data.OleDb This namespace defines the types that allow you to connect to an OLE DB-compliant data source, submit SQL queries, and fill DataSets. The types in this namespace have a look and feel similar (but not identical) to that of classic ADO. System.Data.SqlClient This namespace defmes the types that constitute the SOL­ managed provider. Using these types, you can talk directly to Microsoft SQL Server and avoid the level of indirection associated with the OleDb equivalents. System.Data.Sql'Iypes These types represent native data types used in Microsoft SQL Server. Although you are always free to use the corresponding CLR data types, the SqlTypes are optimized to work with SQL Server. All of these ADO.NET namespaces are in a single assembly named System.Data.dll (Figure 13-2). Thus, like in any project referencing external assemblies, you must be sure to set a reference to this .NET binary. Of all the ADO.NET namespaces, System.Data is the lowest common denom­ inator. You simply cannot build ADO.NET applications without specifying this namespace in your data access applications. In addition, to establish a connec­ tion with a data store, you also need to specify a using directive for the System.Data.OleDb or System.Data.SqlClient namespaces. The exact reasons for this are discussed soon. For now, get to know some of the core types defined in System.Data. The Types of System.Data As mentioned, this namespace contains types that represent the data you obtain from a data store, but not the types that make the literal connection. In addition to a number of database-centric exceptions (NoNullAllowedException, 398 Data Access with ADO. NET f D: · WINNT · Microsoft.NET\ framework\ v 1.0.2615 \S~ • Fie View Help ~.... System.Data ... System.Data.CodeOen i! EkI -··• ! S···· • System.Data.Common i ! i Iii ···• System.Data.ObjectPool I ' 1 Bl··-· System.Data.OieDb ~ : l Iii····• System.Data.SqiCiient I : 1 Iii·-·• System.Data.SqiTypes I ; l Iii AcceptRejectRule i f ! Iii- Aggregate i : l , .... AggregateNode i 1!1·- AggregateType j ~ .... BinaryNode .assembly System.Data { Figure 13-2. The System.Data.dll assembly RowNotlnTableException, MissingPrimaryKeyException, and the like), these types are little more than 00 representations of common database primitives (tables, rows, columns, constraints, and so on). Table 13-2lists some of the core types, grouped by related functionality.
Load more

Recommended publications
  • Enterprise Information Integration: Successes, Challenges and Controversies
    Enterprise Information Integration: Successes, Challenges and Controversies Alon Y. Halevy∗(Editor), Naveen Ashish,y Dina Bitton,z Michael Carey,x Denise Draper,{ Jeff Pollock,k Arnon Rosenthal,∗∗Vishal Sikkayy ABSTRACT Several factors came together at the time to contribute to The goal of EII Systems is to provide uniform access to the development of the EII industry. First, some technolo- multiple data sources without having to first loading them gies developed in the research arena have matured to the into a data warehouse. Since the late 1990's, several EII point that they were ready for commercialization, and sev- products have appeared in the marketplace and significant eral of the teams responsible for these developments started experience has been accumulated from fielding such systems. companies (or spun off products from research labs). Sec- This collection of articles, by individuals who were involved ond, the needs of data management in organizations have in this industry in various ways, describes some of these changed: the need to create external coherent web sites experiences and points to the challenges ahead. required integrating data from multiple sources; the web- connected world raised the urgency for companies to start communicating with others in various ways. Third, the 1. INTRODUCTORY REMARKS emergence of XML piqued the appetites of people to share data. Finally, there was a general atmosphere in the late 90's Alon Halevy that any idea is worth a try (even good ones!). Importantly, University of Washington & Transformic Inc. data warehousing solutions were deemed inappropriate for [email protected] supporting these needs, and the cost of ad-hoc solutions were beginning to become unaffordable.
    [Show full text]
  • Histcoroy Pyright for Online Information and Ordering of This and Other Manning Books, Please Visit Topwicws W.Manning.Com
    www.allitebooks.com HistCoroy pyright For online information and ordering of this and other Manning books, please visit Topwicws w.manning.com. The publisher offers discounts on this book when ordered in quantity. For more information, please contact Tutorials Special Sales Department Offers & D e al s Manning Publications Co. 20 Baldwin Road Highligh ts PO Box 761 Shelter Island, NY 11964 Email: [email protected] Settings ©2017 by Manning Publications Co. All rights reserved. Support No part of this publication may be reproduced, stored in a retrieval system, or Sign Out transmitted, in any form or by means electronic, mechanical, photocopying, or otherwise, without prior written permission of the publisher. Many of the designations used by manufacturers and sellers to distinguish their products are claimed as trademarks. Where those designations appear in the book, and Manning Publications was aware of a trademark claim, the designations have been printed in initial caps or all caps. Recognizing the importance of preserving what has been written, it is Manning’s policy to have the books we publish printed on acid­free paper, and we exert our best efforts to that end. Recognizing also our responsibility to conserve the resources of our planet, Manning books are printed on paper that is at least 15 percent recycled and processed without the use of elemental chlorine. Manning Publications Co. PO Box 761 Shelter Island, NY 11964 www.allitebooks.com Development editor: Cynthia Kane Review editor: Aleksandar Dragosavljević Technical development editor: Stan Bice Project editors: Kevin Sullivan, David Novak Copyeditor: Sharon Wilkey Proofreader: Melody Dolab Technical proofreader: Doug Warren Typesetter and cover design: Marija Tudor ISBN 9781617292576 Printed in the United States of America 1 2 3 4 5 6 7 8 9 10 – EBM – 22 21 20 19 18 17 www.allitebooks.com HistPoray rt 1.
    [Show full text]
  • Data Modeler User's Guide
    Oracle® SQL Developer Data Modeler User's Guide Release 18.1 E94838-01 March 2018 Oracle SQL Developer Data Modeler User's Guide, Release 18.1 E94838-01 Copyright © 2008, 2018, Oracle and/or its affiliates. All rights reserved. Primary Author: Celin Cherian Contributing Authors: Chuck Murray Contributors: Philip Stoyanov This software and related documentation are provided under a license agreement containing restrictions on use and disclosure and are protected by intellectual property laws. Except as expressly permitted in your license agreement or allowed by law, you may not use, copy, reproduce, translate, broadcast, modify, license, transmit, distribute, exhibit, perform, publish, or display any part, in any form, or by any means. Reverse engineering, disassembly, or decompilation of this software, unless required by law for interoperability, is prohibited. The information contained herein is subject to change without notice and is not warranted to be error-free. If you find any errors, please report them to us in writing. If this is software or related documentation that is delivered to the U.S. Government or anyone licensing it on behalf of the U.S. Government, then the following notice is applicable: U.S. GOVERNMENT END USERS: Oracle programs, including any operating system, integrated software, any programs installed on the hardware, and/or documentation, delivered to U.S. Government end users are "commercial computer software" pursuant to the applicable Federal Acquisition Regulation and agency- specific supplemental regulations. As such, use, duplication, disclosure, modification, and adaptation of the programs, including any operating system, integrated software, any programs installed on the hardware, and/or documentation, shall be subject to license terms and license restrictions applicable to the programs.
    [Show full text]
  • Preview MS Access Tutorial (PDF Version)
    MS Access About the Tutorial Microsoft Access is a Database Management System (DBMS) from Microsoft that combines the relational Microsoft Jet Database Engine with a graphical user interface and software- development tools. It is a part of the Microsoft Office suite of applications, included in the professional and higher editions. This is an introductory tutorial that covers the basics of MS Access. Audience This tutorial is designed for those people who want to learn how to start working with Microsoft Access. After completing this tutorial, you will have a better understating of MS Access and how you can use it to store and retrieve data. Prerequisites It is a simple and easy-to-understand tutorial. There are no set prerequisites as such, and it should be useful for any beginner who want acquire knowledge on MS Access. However it will definitely help if you are aware of some basic concepts of a database, especially RDBMS concepts. Copyright and Disclaimer Copyright 2018 by Tutorials Point (I) Pvt. Ltd. All the content and graphics published in this e-book are the property of Tutorials Point (I) Pvt. Ltd. The user of this e-book is prohibited to reuse, retain, copy, distribute or republish any contents or a part of contents of this e-book in any manner without written consent of the publisher. We strive to update the contents of our website and tutorials as timely and as precisely as possible, however, the contents may contain inaccuracies or errors. Tutorials Point (I) Pvt. Ltd. provides no guarantee regarding the accuracy, timeliness or completeness of our website or its contents including this tutorial.
    [Show full text]
  • Managing Data in Motion This Page Intentionally Left Blank Managing Data in Motion Data Integration Best Practice Techniques and Technologies
    Managing Data in Motion This page intentionally left blank Managing Data in Motion Data Integration Best Practice Techniques and Technologies April Reeve AMSTERDAM • BOSTON • HEIDELBERG • LONDON NEW YORK • OXFORD • PARIS • SAN DIEGO SAN FRANCISCO • SINGAPORE • SYDNEY • TOKYO Morgan Kaufmann is an imprint of Elsevier Acquiring Editor: Andrea Dierna Development Editor: Heather Scherer Project Manager: Mohanambal Natarajan Designer: Russell Purdy Morgan Kaufmann is an imprint of Elsevier 225 Wyman Street, Waltham, MA 02451, USA Copyright r 2013 Elsevier Inc. All rights reserved. No part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying, recording, or any information storage and retrieval system, without permission in writing from the publisher. Details on how to seek permission, further information about the Publisher’s permissions policies and our arrangements with organizations such as the Copyright Clearance Center and the Copyright Licensing Agency, can be found at our website: www.elsevier.com/permissions. This book and the individual contributions contained in it are protected under copyright by the Publisher (other than as may be noted herein). Notices Knowledge and best practice in this field are constantly changing. As new research and experience broaden our understanding, changes in research methods or professional practices, may become necessary. Practitioners and researchers must always rely on their own experience and knowledge in evaluating and using any information or methods described herein. In using such information or methods they should be mindful of their own safety and the safety of others, including parties for whom they have a professional responsibility.
    [Show full text]
  • Package 'Databaseconnector'
    Package ‘DatabaseConnector’ April 15, 2021 Type Package Title Connecting to Various Database Platforms Version 4.0.2 Date 2021-04-12 Description An R 'DataBase Interface' ('DBI') compatible interface to various database plat- forms ('PostgreSQL', 'Oracle', 'Microsoft SQL Server', 'Amazon Redshift', 'Microsoft Parallel Database Warehouse', 'IBM Netezza', 'Apache Im- pala', 'Google BigQuery', and 'SQLite'). Also includes support for fetching data as 'Andromeda' objects. Uses 'Java Database Connectivity' ('JDBC') to con- nect to databases (except SQLite). SystemRequirements Java version 8 or higher (https://www.java.com/) Depends R (>= 2.10) Imports rJava, SqlRender (>= 1.7.0), methods, stringr, rlang, utils, DBI (>= 1.0.0), urltools, bit64 Suggests aws.s3, R.utils, withr, testthat, DBItest, knitr, rmarkdown, RSQLite, ssh, Andromeda, dplyr License Apache License VignetteBuilder knitr URL https://ohdsi.github.io/DatabaseConnector/, https: //github.com/OHDSI/DatabaseConnector 1 2 R topics documented: BugReports https://github.com/OHDSI/DatabaseConnector/issues Copyright See file COPYRIGHTS RoxygenNote 7.1.1 Encoding UTF-8 R topics documented: connect . .3 createConnectionDetails . .6 createZipFile . .9 DatabaseConnectorDriver . 10 dbAppendTable,DatabaseConnectorConnection,character,data.frame-method . 10 dbClearResult,DatabaseConnectorResult-method . 11 dbColumnInfo,DatabaseConnectorResult-method . 12 dbConnect,DatabaseConnectorDriver-method . 13 dbCreateTable,DatabaseConnectorConnection,character,data.frame-method . 13 dbDisconnect,DatabaseConnectorConnection-method
    [Show full text]
  • Amazon Aurora Mysql Database Administrator's Handbook
    Amazon Aurora MySQL Database Administrator’s Handbook Connection Management March 2019 Notices Customers are responsible for making their own independent assessment of the information in this document. This document: (a) is for informational purposes only, (b) represents current AWS product offerings and practices, which are subject to change without notice, and (c) does not create any commitments or assurances from AWS and its affiliates, suppliers or licensors. AWS products or services are provided “as is” without warranties, representations, or conditions of any kind, whether express or implied. The responsibilities and liabilities of AWS to its customers are controlled by AWS agreements, and this document is not part of, nor does it modify, any agreement between AWS and its customers. © 2019 Amazon Web Services, Inc. or its affiliates. All rights reserved. Contents Introduction .......................................................................................................................... 1 DNS Endpoints .................................................................................................................... 2 Connection Handling in Aurora MySQL and MySQL ......................................................... 3 Common Misconceptions .................................................................................................... 5 Best Practices ...................................................................................................................... 6 Using Smart Drivers ........................................................................................................
    [Show full text]
  • Database Language SQL: Integrator of CALS Data Repositories
    Database Language SQL: Integrator of CALS Data Repositories Leonard Gallagher Joan Sullivan U.S. DEPARTMENT OF COMMERCE Technology Administration National Institute of Standards and Technology Information Systems Engineering Division Computer Systems Laboratory Gaithersburg, MD 20899 NIST Database Language SQL Integrator of CALS Data Repositories Leonard Gallagher Joan Sullivan U.S. DEPARTMENT OF COMMERCE Technology Administration National Institute of Standards and Technology Information Systems Engineering Division Computer Systems Laboratory Gaithersburg, MD 20899 September 1992 U.S. DEPARTMENT OF COMMERCE Barbara Hackman Franklin, Secretary TECHNOLOGY ADMINISTRATION Robert M. White, Under Secretary for Technology NATIONAL INSTITUTE OF STANDARDS AND TECHNOLOGY John W. Lyons, Director Database Language SQL: Integrator of CALS Data Repositories Leonard Gallagher Joan Sullivan National Institute of Standards and Technology Information Systems Engineering Division Gaithersburg, MD 20899, USA CALS Status Report on SQL and RDA - Abstract - The Computer-aided Acquisition and Logistic Support (CALS) program of the U.S. Department of Defense requires a logically integrated database of diverse data, (e.g., documents, graphics, alphanumeric records, complex objects, images, voice, video) stored in geographically separated data banks under the management and control of heterogeneous data management systems. An over-riding requirement is that these various data managers be able to communicate with each other and provide shared access to data and
    [Show full text]
  • Declarative Access to Filesystem Data New Application Domains for XML Database Management Systems
    Declarative Access to Filesystem Data New application domains for XML database management systems Alexander Holupirek Dissertation zur Erlangung des akademischen Grades Doktor der Naturwissenschaften (Dr. rer. nat.) Fachbereich Informatik und Informationswissenschaft Mathematisch-Naturwissenschaftliche Sektion Universität Konstanz Referenten: Prof. Dr. Marc H. Scholl Prof. Dr. Marcel Waldvogel Tag der mündlichen Prüfung: 17. Juli 2012 Abstract XML and state-of-the-art XML database management systems (XML-DBMSs) can play a leading role in far more application domains as it is currently the case. Even in their basic configuration, they entail all components necessary to act as central systems for complex search and retrieval tasks. They provide language-specific index- ing of full-text documents and can store structured, semi-structured and binary data. Besides, they offer a great variety of standardized languages (XQuery, XSLT, XQuery Full Text, etc.) to develop applications inside a pure XML technology stack. Benefits are obvious: Data, logic, and presentation tiers can operate on a single data model, and no conversions have to be applied when switching in between. This thesis deals with the design and development of XML/XQuery driven informa- tion architectures that process formerly heterogeneous data sources in a standardized and uniform manner. Filesystems and their vast amounts of different file types are a prime example for such a heterogeneous dataspace. A new XML dialect, the Filesystem Markup Language (FSML), is introduced to construct a database view of the filesystem and its contents. FSML provides a uniform view on the filesystem’s contents and allows developers to leverage the complete XML technology stack on filesystem data.
    [Show full text]
  • Plataforma De Datos Virtuoso
    Plataforma de Datos Virtuoso: Arquitectura, Tecnologías y Caso de Estudio Virtuoso Data Platform: Architecture, Technology and Case Study Andrés Nacimiento García Dpto. Ingeniería Informática Escuela Técnica Superior de Ingeniería Informática Trabajo de Fin de Grado La Laguna, 27 de febrero de 2015 Dña. Elena Sánchez Nielsen, profesora de Universidad adscrita al Departamento de Ingeniería Informática de la Universidad de La Laguna C E R T I F I C A Que la presente memoria titulada: “Plataforma de Datos Virtuoso: Arquitectura, Tecnologías y Caso de Estudio.” ha sido realizada bajo su dirección por D. Andrés Nacimiento García. Y para que así conste, en cumplimiento de la legislación vigente y a los efectos oportunos firman la presente en La Laguna a 27 de febrero de 2015. Agradecimientos Agradecimiento especial a Jésica por su apoyo incondicional. A Mª de los Ángeles por sus conocimientos en inglés. A mi familia por el apoyo recibido. A la directora del proyecto por su tiempo y paciencia. Al soporte técnico de OpenLink Virtuoso por ofrecerse personalmente en caso de tener algún problema. A toda esa gente anónima que aporta documentación en internet para que proyectos como éste se puedan llevar a cabo. Resumen El presente trabajo fin de grado tiene como finalidad el estudio y análisis de las funcionalidades y prestaciones de la plataforma de datos Virtuoso en el manejo de datos relacionales y RDF, así como en el desarrollo de aplicaciones Web para acceder a dichos datos. Con esta finalidad, este trabajo fin de grado, se divide en dos partes. Una primera parte, que se focaliza sobre el estudio y análisis de las funcionalidades de la plataforma Virtuoso.
    [Show full text]
  • Database Schema Connection String
    Database Schema Connection String Mortie is book-learned and serpentinizing seraphically while weeded Daryl outvalues and flux. Transpacific and anaptyctic Shimon never relet chronologically when Aram reregulating his constituencies. Which Pasquale recounts so anecdotally that Adolf peoples her duplicatures? Is it was a message if set: import connections is to database connection is an x protocol connection requires Learn everything there site to need about connection strings in webconfig. Unable to stroll to Oracle 11g User Schema as primary Source. Specifying a Schema Definition Using Connection Properties. Dns server database schema name for that you. Oracle9i user's schema geodatabase sdeoracle9i oracle9i is the. Connecting to relate Database PostgreSQL JDBC Driver. Connection URLs Reference Prisma Docs. Prisma needs a connection URL to your able to lash to exclude database eg when sending queries with Prisma Client or when changing the database schema. Strings for numerous databases and data stores Code samples are in C You district provide the values in red Microsoft SQL Server ODBC DSN. You already exists it be closed when statement though. If database connection string is connected, you may need to the databases with actual values. String connStr serverlocalhostuserrootdatabaseworldport3306. Configuration PostgREST 701 documentation. Note that using the overwrite option of ogr2ogr and lco SCHEMA option display the. Below is like database schema should we did anyone raised the. Each connection string is connecting to connect strings in the connections. Sql server database connection strings mostly require dba access and file system, depending on server? Mongooseconnect'mongodbusernamepasswordhostportdatabaseoptions. Syntax for an executable context. The database profile that depends on your default.
    [Show full text]
  • NJ/NX-Series Database Connection CPU Units User's Manual
    Machine Automation Controller NJ/NX-series Database Connection CPU Units User’s Manual NX701-££20 NX102-££20 NJ501-££20 NJ101-££20 CPU Unit W527-E1-10 NOTE • All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted, in any form, or by any means, mechanical, electronic, photocopying, recording, or oth- erwise, without the prior written permission of OMRON. • No patent liability is assumed with respect to the use of the information contained herein. Moreover, because OMRON is constantly striving to improve its high-quality products, the informa- tion contained in this manual is subject to change without notice. • Every precaution has been taken in the preparation of this manual. Nevertheless, OMRON as- sumes no responsibility for errors or omissions. Neither is any liability assumed for damages resulting from the use of the information contained in this publication. Trademarks • Sysmac and SYSMAC are trademarks or registered trademarks of OMRON Corporation in Japan and other countries for OMRON factory automation products. • Microsoft, Windows, Windows Vista, Excel, and SQL Server are either registered trademarks or trademarks of Microsoft Corporation in the United States and other countries. • EtherCAT® is registered trademark and patented technology, licensed by Beckhoff Automation GmbH, Germany. • ODVA, CIP, CompoNet, DeviceNet, and EtherNet/IP are trademarks of ODVA. • The SD and SDHC logos are trademarks of SD-3C, LLC. • Oracle, Java, and MySQL are registered trademarks of Oracle Corporation and/or its affiliates in the USA and other countries. • IBM and DB2 are registered trademarks of International Business Machines Corporation in the USA and other countries.
    [Show full text]