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Build Status Maven Central

steelwheels-data-hsqldb

Steelwheels data set in hsqldb format

This project contains the Steelwheels data set as an embedded HSQLDB database.

It originated as part of the test suite of the <a href="http://mondrian.pentaho.org">Pentaho Mondrian OLAP engine</a>.

Schema

Steelwheels contains 13 tables:

TableRow count
customer_w_ter126
customers126
department_managers4
employees23
offices7
orderdetails3,001
orderfact2,996
orders330
payments272
products110
quadrant_actuals148
time265
trial_balance22

Its size is about 1MB uncompressed, 124KB compressed.

Here is a schema diagram:

Steelwheels 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:

<dependency>
  <groupId>net.hydromatic</groupId>
  <artifactId>steelwheels-data-hsqldb</artifactId>
  <version>0.2</version>
</dependency>

Now you can connect using Java code:

import java.sql.Connection;

final String url = "jdbc:hsqldb:res:steelwheels";
final String user = "STEELWHEELS";
final String password = "STEELWHEELS";
final String sql = "select lastname"\n"
    + "from \"steelwheels\".\"employees\"";
try (Connection c = DriverManager.getConnection(url, user, password);
    Statement s = c.createStatement();
    ResultSet r = s.executeQuery(sql)) {
  while (r.next()) {
    System.out.println(r.getString(1));
  }
}

You can also connect using a JDBC interface such as sqlline. Make sure that steelwheels-data-hsqldb.jar is on the class path, and start sqlline:

$ ./sqlline
sqlline version 1.12.0
sqlline> !connect jdbc:hsqldb:res:steelwheels sa ""
0: jdbc:hsqldb:res:steelwheels> select count(*) from "steelwheels"."employees";
+----------------------+
|          C1          |
+----------------------+
| 23                   |
+----------------------+
1 row selected (0.004 seconds)
0: jdbc:hsqldb:res:steelwheels> !quit

If you use username and password "STEELWHEELS" and "STEELWHEELS", the default schema is "steelwheels", so you can omit the table prefix, if you wish:

$ ./sqlline
sqlline version 1.12.0
sqlline> !connect jdbc:hsqldb:res:steelwheels STEELWHEELS STEELWHEELS
0: jdbc:hsqldb:res:steelwheels> select count(*) from "employees";
+----------------------+
|          C1          |
+----------------------+
| 23                   |
+----------------------+
1 row selected (0.004 seconds)
0: jdbc:hsqldb:res:steelwheels> !quit

Get steelwheels-data-hsqldb

From Maven

Get steelwheels-data-hsqldb from <a href="https://search.maven.org/#search%7Cga%7C1%7Cg%3Anet.hydromatic%20a%3Asteelwheels-data-hsqldb">Maven Central</a>:

<dependency>
  <groupId>net.hydromatic</groupId>
  <artifactId>steelwheels-data-hsqldb</artifactId>
  <version>0.2</version>
</dependency>

Download and build

Java version 8 or higher.

$ git clone git://github.com/julianhyde/steelwheels-data-hsqldb.git
$ cd steelwheels-data-hsqldb
$ ./mvnw install

+On Windows, the last line is

> mvnw install

Make a release

See hydromatic-parent.

See also

Similar data sets:

More information