To compare two databases in Navicat: Connect to the database. Open the data contraster. Select the database to compare. Configure comparison options. Perform a comparison. View the results. Apply changes (optional).
How to compare two databases in Navicat
Comparing two databases is essential to maintain data consistency, identify differences, and merge changes. Navicat provides powerful and user-friendly features to simplify this process.
step:
1. Connect to the database
- Start Navicat and connect to the two databases you want to compare.
2. Open the data comparison
- In the Navicat top menu bar, select Tools > Data comparison.
3. Select the database
- In the pop-up window, select the two databases to compare from the drop-down list.
4. Configure comparison options
-
Configure comparison options as needed, for example:
- Select the table or view to compare.
- Specify the comparison key.
- Select the output format (HTML, XML, text, etc.).
5. Perform comparison
- Click the Start Contrast button to perform the comparison.
6. View the results
- The comparison results will be displayed in the output file.
- Data variances are displayed in groups by table, row, and column.
7. Apply changes
- If needed, you can apply changes from one database to another by clicking the Sync button.
Additional Notes:
- Navicat provides advanced options such as ignoring null values, specifying filter criteria, and more.
- You can also use the command line interface (CLI) to perform data comparison.
- Data Comparator is a powerful tool that can not only compare two databases, but also compare databases in different database management systems.
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