Delete row if table exists
In SQL Server you could do something like this

IF EXISTS (
        SELECT 1
        FROM sys.objects AS o
        INNER JOIN sys.schemas AS s
            ON s.schema_id = o.schema_id
        WHERE CONCAT (s.NAME, '.', o.NAME) = 'dbo.UM_CLAIM_BEHAVIOR'
            AND o.type_desc = 'USER_TABLE'
        )
BEGIN
    DELETE T
    FROM UM_CLAIM_BEHAVIOR AS T
    WHERE UM_TENANT_ID = ?
END