ARCSDE USER S GUIDE AND DATA CATALOG - GIS TReC at ISU

ISU GIS CENTER'S ARCSDE USER'S GUIDE AND

DATA CATALOG

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TABLE OF CONTENTS 1) INTRODUCTION TO ARCSDE. . . . . . . . . . . . . 3 2) CONNECTING TO ARCSDE. . . . . . . . . . . . . . 5 3) ARCSDE LAYERS. . . . . . . . . . . . . . . . . . . . . . 9 4) LAYER FILES. . . . . . . . . . . . . . . . . . . . . . . . . 19 5) RESEARCH FEATURE DATASET. . . . . . . . . . 23

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SECTION 1: INTRODUCTION TO ARCSDE

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WHAT IS SDE?

ArcSDE (Spatial database engine) is a system that stores spatial data in a database management system. ArcSDE manages spatial data using IBM DB2, IBM Informix, Microsoft SQL Server, or Oracle, and allows one to serve spatial data to remote clients. ArcSDE delivers spatial data to ArcGIS Desktop users through a direct, read-only connection from the client's machine to ArcSDE.

WHAT DOES THIS MEAN FOR GIS USERS?

ArcSDE allows remote users to access both raster and vector GIS datasets for use in their projects.

The use of ArcSDE eliminates the need to download data and store it locally. This saves time and resources as well as simplifies file management for the client.

An SDE connection keeps an active link to SDE data, regardless of where a map document file (MXD) is located (or moved to) on the client's computer.

Because data is stored in a topological geodatabase format, accurate length and area is calculated and reported within the database.

Users have read-only access to datasets on this network.

HOW DO GIS USERS USE THIS INFORMATION?

ArcSDE layers function identically to a shapefile or coverage in ArcMap, save for the fact that you are not allowed to edit the dataset.

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SECTION 2: CONNECTING TO ARCSDE

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