Instructions for Use
The GDB data comparison function is used to verify the consistency between the source data (File Geodatabase, referred to as GDB) and the migrated target datasource (UDBX datasource). By setting the sampling ratio, the system generates a data comparison report to help users verify the accuracy and integrity of data during migration.
During the data migration process, users often worry that each operation may cause data loss or attribute changes. This function compares geometry info, property fields, and object counts between the source GDB and the target UDBX datasource, generating a visual comparison report. It provides users with reliable evidence for data migration quality, effectively reducing data migration risks.
Version Information: Supported starting from SuperMap iDesktopX 2026.
Function Entry
- Data Migration tab -> ArcGIS Data Migration -> GDB data comparison.
Operation Instructions
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Open Tool: Open the GDB data comparison dialog through the above entry.
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GDB File Path: Specify the folder path of the GDB data to be compared.
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Compare Data Source: Select the target datasource to be compared, which is the migrated UDBX datasource.
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License Verification: Confirm the license verification status to ensure the function is available.
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Data Sampling Ratio: Set the sampling ratio for individual dataset features in the source data to generate the data comparison report. The larger the ratio, the more comprehensive the comparison, but the longer the processing time. The following four sampling proportions of data:
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5%: Default option, quick verification, suitable for preliminary checks.
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10%/50%: Medium accuracy, balancing efficiency and comprehensiveness.
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100%: Full comparison, most comprehensive but time-consuming.
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Set Output Path:
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Storage Directory: Specify the storage folder path for the comparison report, defaulting to the directory where the current compare data source is located.
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Result File Name: Enter the name of the comparison result Excel file.
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Execute Comparison: Click the
OKbutton, and the system begins executing data comparison. -
View Report: After the comparison is completed, the output window will prompt that the data comparison is completed and provide a link to the generated report file (*.xlsx file). Double-click the link or open the file to view the detailed comparison report.
Data Comparison Report Description
| Tab | Content Description |
|---|---|
| Overview | Displays the overall statistics information of data migration, including: • GDB file name • Number of feature classes contained in each GDB file • Number of successful migrations • Whether all migrations are successful • Remarks: Lists the feature classes that failed to migrate and the reasons for failure |
| Data | Details the migration status of each feature class, including: • Feature class name and type • Comparison of various indicators before and after migration • Whether migration is successful • Explanation of migration failure reasons |
| Inspect Data Quality_Feature Class Name | Each feature dataset has an independent tab, displaying detailed comparison results of sampling data: • Layer Bounds Comparison: Left, bottom, right, and top extent values before and after migration • Geometry Info Comparison: Displays key indicators based on feature type (point objects display coordinates, line objects display perimeter, polygon objects display area) • Property Field Comparison: Displays attribute values of source and target field by field, with differences highlighted by special markers |
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