Checking the Compatibility Mode

If the target database type is GaussDB, the compatibility mode will be checked. Different source databases adapt to different compatibility modes. If the target database uses a compatibility mode different from a recommended one, a risk is reported. Table 1 lists the GaussDB compatible modes.

**Table 1** Compatible modes
Source Database	GaussDB Compatibility Mode
MySQL or GoldenDB	MySQL-compatible
Others	Oracle-compatible

The MySQL-compatible mode includes GaussDB Centralized (B-compatible), GaussDB Centralized (M-compatible), and GaussDB Distributed (MySQL-compatible). The Oracle-compatible mode includes GaussDB Centralized (A-compatible) and GaussDB Distributed (Oracle-compatible).

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