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You can use either of the tools for comparing schemas. However, the schema synchronization tool always extracts dependencies of the selected schema objects which results in additional queries being executed. Therefore, if your requirement is to only compare schemas and not synchronize then use the schema compare tool instead of the schema synchronization tool.

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Databases Support

Schema Compare supports all natively supported databases of Aqua Data Studio whereas Schema Synchronization supports many of the most commonly used native databases. The following table lists the databases and their versions supported by Schema Synchronization.

Database NameVersion
DB2 LUW10.1, 10.5, 11.1
MySQL5.1, 5.5, 5.6, 5.7
Oracle10g, 11g, 12c
PostgreSQL9.0, 9.1, 9.2, 9.3, 9.4, 9.5 ,9.6
SQL Server2005, 2008, 2012, 2014, 2016
Sybase ASE15, 16
Sybase IQ15.1, 15.2, 15.4, 16.0

Privileges Required for Deploying Schema Compare Scripts

To deploy Schema Compare scripts for Oracle, we recommend you have DBA privileges. In the Edit Server Properties for Oracle, you must log in with an account with DBA privileges, and then in the Advanced tab, select Use DBA Views check box.
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For comparing schemas, you must have SELECT and EXECUTE privileges on the schema objects you want to compare.