Awesome
<!-- {% comment %} Licensed to Julian Hyde under one or more contributor license agreements. See the NOTICE file distributed with this work for additional information regarding copyright ownership. Julian Hyde licenses this file to you under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0 Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License. {% endcomment %} -->foodmart-data-hsqldb
Foodmart data set in hsqldb format
This project contains the FoodMart data set as an embedded HSQLDB database.
It originated as part of the test suite of the <a href="https://mondrian.pentaho.org">Pentaho Mondrian OLAP engine</a>.
Schema
Foodmart contains 37 tables:
- 7 fact tables: sales_fact_1997, sales_fact_1998, sales_fact_dec_1998, inventory_fact_1997, inventory_fact_1998, salary, expense_fact
- 19 dimension tables: product, customer, time_by_day, employee and more
- 11 aggregate tables
Its size is about 24MB uncompressed, 8MB compressed.
Here is a schema diagram:
Using the data set
The data set is packaged as a jar file that is published to Maven Central as a Maven artifact. To use the data in your Java application, add the artifact to your project's dependencies:
<dependencies>
<dependency>
<groupId>org.hsqldb</groupId>
<artifactId>hsqldb</artifactId>
<version>2.5.1</version>
</dependency>
<dependency>
<groupId>net.hydromatic</groupId>
<artifactId>foodmart-data-hsqldb</artifactId>
<version>0.5</version>
</dependency>
</dependencies>
(foodmart-data-hsqldb requires Java 8 or higher, and HSQLDB 2.0.0 or higher; Java 11 <a href="http://hsqldb.org/doc/2.0/changelist_2_0.txt">is required</a> for HSQLDB 2.6.0 and higher.)
Now you can connect using Java code:
import java.sql.Connection;
import java.sql.Statement;
import java.sql.ResultSet;
Connection connection =
DriverManager.getConnection("jdbc:hsqldb:res:foodmart",
"FOODMART", "FOODMART");
Statement statement = connection.createStatement();
ResultSet resultSet =
statement.executeQuery("select \"employee_id\", \"full_name\"\n"
+ "from \"foodmart\".\"employee\"");
while (resultSet.next()) {
System.out.println(resultSet.getInt(1) + ":" + resultSet.getString(2));
}
resultSet.close();
statement.close();
connection.close();
You can also connect using a JDBC interface such as sqlline.
Make sure that foodmart-data-hsqldb.jar
is on the class path, and start sqlline
:
$ ./sqlline
sqlline version 1.12.0
sqlline> !connect jdbc:hsqldb:res:foodmart sa ""
0: jdbc:hsqldb:res:foodmart> select count(*) from "foodmart"."sales_fact_1997";
+----------------------+
| C1 |
+----------------------+
| 86837 |
+----------------------+
1 row selected (0.004 seconds)
0: jdbc:hsqldb:res:foodmart> !quit
Get foodmart-data-hsqldb
From Maven
Get foodmart-data-hsqldb from <a href="https://search.maven.org/#search%7Cga%7C1%7Cg%3Anet.hydromatic%20a%3Afoodmart-data-hsqldb">Maven Central</a>:
<dependency>
<groupId>net.hydromatic</groupId>
<artifactId>foodmart-data-hsqldb</artifactId>
<version>0.5</version>
</dependency>
Download and build
Java version 11 or higher.
$ git clone git://github.com/julianhyde/foodmart-data-hsqldb.git
$ cd foodmart-data-hsqldb
$ ./mvnw install
On Windows, the last line is
> mvnw install
Make a release
See hydromatic-parent.
See also
Similar data sets:
- chinook-data-hsqldb
- flight-data-hsqldb
- foodmart-data-json
- foodmart-data-mysql
- foodmart-queries
- scott-data-hsqldb
- steelwheels-data-hsqldb
More information
- License: Apache License, Version 2.0
- Author: Julian Hyde
- Blog: https://blog.hydromatic.net
- Project page: http://www.hydromatic.net/foodmart-data-hsqldb
- Source code: https://github.com/julianhyde/foodmart-data-hsqldb
- Developers list: <a href="mailto:dev@calcite.apache.org">dev at calcite.apache.org</a> (<a href="https://mail-archives.apache.org/mod_mbox/calcite-dev/">archive</a>, <a href="mailto:dev-subscribe@calcite.apache.org">subscribe</a>)
- Issues: https://github.com/julianhyde/foodmart-data-hsqldb/issues
- <a href="HISTORY.md">Release notes and history</a>