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| GeoCommunity Mailing List |
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| Subject: | [gislist] Two tier vs. Three tier Architecture? |
| Date: |
04/14/2004 05:25:00 PM |
| From: |
Smith Travis G Civ 56 RMO/GIS |
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Hi Listers,
Per the excerpt below, I have a pretty good understanding of the
three-tiered structure, however, I am pretty cloudy on the two-tiered
structure (does it require Oracle Spatial, for example?), and how it =
works.
Could someone please explain to me in layman's terms what the =
differences
are: and maybe some of the advantages/disadvantages of each?
Thanks in advance!
Travis
Two-tiered vs. three-tiered architecture
At 8.1, ArcSDE for Oracle8i=F4 and SQL Server provide two
alternative methods of connecting to the database instance=F3
direct connection to the database instance in a two-tiered
architecture or connecting to the ArcSDE service in a three-tiered
architecture. If it is your intention to adopt the two-tiered
approach then you need read no further. This guide is solely
concerned with the administration of the ArcSDE service. Refer
to the ArcSDE Configuration and Tuning Guide for your DBMS
for more information regarding direct connection.
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