Amazon SimpleDB Limitations - data_integration_1 - discovery - spectrum_platform - 23.1

Spectrum Discovery Guide

Product type
Software
Portfolio
Verify
Product family
Spectrum
Product
Spectrum > Discovery
Version
23.1
Language
English
Product name
Spectrum Discovery
Title
Spectrum Discovery Guide
Topic type
How Do I
Reference
Overview
First publish date
2007
ft:lastEdition
2024-02-07
ft:lastPublication
2024-02-07T17:21:58.768552

Write Limitation

In the Write to DB stage, the write mode Update is not available when writing to an Amazon SimpleDB table. The Insert option handles both insert and update operations. It differentiates between an insert and an update using the unique value of the ItemName column which is present in all Amazon SimpleDB tables.

Reason: An update query requires a Primary Key for each record of the table to be updated, which is not supported by Amazon SimpleDB databases.

Read Limitation

The aggregate functions SUM and AVG are not supported while executing queries on Model Store.