Fix paths to images

Signed-off-by: Nikita Eshkeev <kastolom@gmail.com>
This commit is contained in:
Nikita Eshkeev 2025-08-24 00:47:03 +03:00 committed by Patrick McFadin
parent 7e74f4bdb8
commit 515cb0e1c2
7 changed files with 12 additions and 12 deletions

View File

@ -30,7 +30,7 @@ underlined. Relationships between entities are represented as diamonds,
and the connectors between the relationship and each entity show the
multiplicity of the connection.
image::data_modeling_hotel_erd.png[image]
image::images/data_modeling_hotel_erd.png[image]
Obviously, in the real world, there would be many more considerations
and much more complexity. For example, hotel rates are notoriously

View File

@ -34,7 +34,7 @@ informative way to visualize the relationships between queries and
tables in your designs. This figure shows the Chebotko notation for a
logical data model.
image::cassandra:developing/data-modeling/data_modeling_chebotko_logical.png[image]
image::images/data_modeling_chebotko_logical.png[image]
Each table is shown with its title and a list of columns. Primary key
columns are identified via symbols such as *K* for partition key columns
@ -51,7 +51,7 @@ dedicated tables for rooms or amenities, as you had in the relational
design. This is because the workflow didn't identify any queries
requiring this direct access.
image::cassandra:developing/data-modeling/data_modeling_hotel_logical.png[image]
image::images/data_modeling_hotel_logical.png[image]
Let's explore the details of each of these tables.
@ -127,7 +127,7 @@ shows a logical data model for reservations. You'll notice that these
tables represent a denormalized design; the same data appears in
multiple tables, with differing keys.
image::cassandra:developing/data-modeling/data_modeling_reservation_logical.png[image]
image::images/data_modeling_reservation_logical.png[image]
In order to satisfy Q6, the `reservations_by_guest` table can be used to
look up the reservation by guest name. You could envision query Q7 being

View File

@ -19,7 +19,7 @@ notation for physical data models. To draw physical models, you need to
be able to add the typing information for each column. This figure shows
the addition of a type for each column in a sample table.
image::cassandra:developing/data-modeling/data_modeling_chebotko_physical.png[image]
image::images/data_modeling_chebotko_physical.png[image]
The figure includes a designation of the keyspace containing each table
and visual cues for columns represented using collections and
@ -61,7 +61,7 @@ As you work to create physical representations of various tables in the
logical hotel data model, you use the same approach. The resulting
design is shown in this figure:
image::cassandra:developing/data-modeling/data_modeling_hotel_physical.png[image]
image::images/data_modeling_hotel_physical.png[image]
Note that the `address` type is also included in the design. It is
designated with an asterisk to denote that it is a user-defined type,
@ -86,7 +86,7 @@ first iteration of your physical data model design, assume you're going
to manage this denormalization manually. Note that this design could be
revised to use Cassandra's (experimental) materialized view feature.
image::cassandra:developing/data-modeling/data_modeling_reservation_physical.png[image]
image::images/data_modeling_reservation_physical.png[image]
Note that the `address` type is reproduced in this keyspace and
`guest_id` is modeled as a `uuid` type in all of the tables.

View File

@ -53,7 +53,7 @@ to obtain detailed description of the hotel. The act of booking a room
creates a reservation record that may be accessed by the guest and hotel
staff at a later time through various additional queries.
image::cassandra:developing/data-modeling/data_modeling_hotel_queries.png[image]
image::images/data_modeling_hotel_queries.png[image]
_Material adapted from Cassandra, The Definitive Guide. Published by
O'Reilly Media, Inc. Copyright © 2020 Jeff Carpenter, Eben Hewitt. All

View File

@ -12,7 +12,7 @@ relationships from the conceptual model of hotels-to-points of interest,
rooms-to-amenities, rooms-to-availability, and guests-to-rooms (via a
reservation).
image::data_modeling_hotel_relational.png[image]
image::images/data_modeling_hotel_relational.png[image]
== Design Differences Between RDBMS and Cassandra

View File

@ -188,7 +188,7 @@ the original design is shown in the figure below. While the `month`
column is partially duplicative of the `date`, it provides a nice way of
grouping related data in a partition that will not get too large.
image::data_modeling_hotel_bucketing.png[image]
image::images/data_modeling_hotel_bucketing.png[image]
If you really felt strongly about preserving a wide partition design,
you could instead add the `room_id` to the partition key, so that each

View File

@ -150,7 +150,7 @@ consist of `id` ( for partition key), magazine name and publication
frequency as shown in Figure 1.
.Data Model for Q1
image::Figure_1_data_model.jpg[image]
image::images/Figure_1_data_model.jpg[image]
Another query (Q2) is to list all the magazine names by publisher. For
Q2 the data model would consist of an additional attribute `publisher`
@ -159,7 +159,7 @@ sorting within a partition. Data model for Q2 is illustrated in Figure
2.
.Data Model for Q2
image::Figure_2_data_model.jpg[image]
image::images/Figure_2_data_model.jpg[image]
== Designing Schema