Comparison of the data extraction methods
There are three different possible ways to extract data: using existing SAP® standard components (RFC function module RFC_READ_TABLE), which already exist on the SAP® system, using the SmartExporter RFC function module ZAUDICZ_RFC_READ_TABLE or using SmartExporter SAP® components.
To use the full scope of SmartExporter functionality the installation of the SmartExporter SAP® components is required. Both other alternatives come with limitations of the SmartExporter functionality. It is recommended to use the SmartExporter SAP® components.
The following table contains a comparison of the three different extraction methods:
| SmartExporter SAP® components | ZAUDICZ_RFC_READ_TABLE | SAP® standard components | |
|---|---|---|---|
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Also records that are not available in a sorted order can be extracted correctly. |
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Can result in incomplete data extractions |
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Supported file types: DEC (virtual or amount fields with decimal separators, thousands separators and signs), FLTP (Floating Point), INT8 (64 bit integer) and QUAN (Quantity) |
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May return incorrect values |
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No overflow of calculation or amount fields |
|
|
May return incorrect values |
|
Synchronous Data Request |
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Place the Data Request in the queue of the SAP® system |
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|
|
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Joins with more than one table |
|
|
|
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Checking the size of the Data Request |
|
|
|
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Access archived data |
|
|
|
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Additional Data Sources |
|
|
|
|
Maximum record length |
Unlimited for version 6.0.0000 or higher, 2,048 bytes for previous versions |
2,048 Bytes (depending on the DATA parameter) |
512 bytes |
|
Maximum filter length |
130 characters |
253 characters (depending on the data type of the OPTIONS parameter) |
68 characters |
|
Installation |
As Add-On or transport |
As source code or transport |
No installation required |
|
Authorization check using |
S_TABU_DIS / S_TABU_NAM and/or SmartExporter authorization profiles |
S_TABU_DIS / S_TABU_NAM |
S_TABU_DIS / S_TABU_NAM |
Table: Comparison of the SmartExporter SAP® components, ZAUDICZ_RFC_READ_TABLE and SAP® standard components
More information on the three data extraction methods:
- Information on installing and using the SmartExporter SAP® components.
- Information on installing and configuring ZAUDICZ_RFC_READ_TABLE.
- Information on using SAP® standard components.