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Create a Data Access Object for Sybase Data using JDBI

A brief overview of creating a SQL Object API for Sybase data in JDBI.

JDBI is a SQL convenience library for Java that exposes two different style APIs, a fluent style and a SQL object style. The CData JDBC Driver for Sybase integrates connectivity to live Sybase data in Java applications. By pairing these technologies, you gain simple, programmatic access to Sybase data. This article walks through building a basic Data Access Object (DAO) and the accompanying code to read and write Sybase data.

Create a DAO for the Sybase Products Entity

The interface below declares the desired behavior for the SQL object to create a single method for each SQL statement to be implemented.

public interface MyProductsDAO { //insert new data into Sybase @SqlUpdate("INSERT INTO Products (ProductName, ProductName) values (:productName, :productName)") void insert(@Bind("productName") String productName, @Bind("productName") String productName); //request specific data from Sybase (String type is used for simplicity) @SqlQuery("SELECT ProductName FROM Products WHERE ProductName = :productName") String findProductNameByProductName(@Bind("productName") String productName); /* * close with no args is used to close the connection */ void close(); }

Open a Connection to Sybase

Collect the necessary connection properties and construct the appropriate JDBC URL for connecting to Sybase.

To connect to Sybase, specify the following connection properties:

  • Server: Set this to the name or network address of the Sybase database instance.
  • Database: Set this to the name of the Sybase database running on the specified Server.

Optionally, you can also secure your connections with TLS/SSL by setting UseSSL to true.

Sybase supports several methods for authentication including Password and Kerberos.

Connect Using Password Authentication

Set the AuthScheme to Password and set the following connection properties to use Sybase authentication.

  • User: Set this to the username of the authenticating Sybase user.
  • Password: Set this to the username of the authenticating Sybase user.

Connect using LDAP Authentication

To connect with LDAP authentication, you will need to configure Sybase server-side to use the LDAP authentication mechanism.

After configuring Sybase for LDAP, you can connect using the same credentials as Password authentication.

Connect Using Kerberos Authentication

To leverage Kerberos authentication, begin by enabling it setting AuthScheme to Kerberos. See the Using Kerberos section in the Help documentation for more information on using Kerberos authentication.

You can find an example connection string below: Server=MyServer;Port=MyPort;User=SampleUser;Password=SamplePassword;Database=MyDB;Kerberos=true;KerberosKDC=MyKDC;KerberosRealm=MYREALM.COM;KerberosSPN=server-name

Built-in Connection String Designer

For assistance in constructing the JDBC URL, use the connection string designer built into the Sybase JDBC Driver. Either double-click the JAR file or execute the jar file from the command-line.

java -jar cdata.jdbc.sybase.jar

Fill in the connection properties and copy the connection string to the clipboard.

A connection string for Sybase will typically look like the following:


Use the configured JDBC URL to obtain an instance of the DAO interface. The particular method shown below will open a handle bound to the instance, so the instance needs to be closed explicitly to release the handle and the bound JDBC connection.

DBI dbi = new DBI("jdbc:sybase:User=myuser;Password=mypassword;Server=localhost;Database=mydatabase;Charset=iso_1;"); MyProductsDAO dao =; //do stuff with the DAO dao.close();

Read Sybase Data

With the connection open to Sybase, simply call the previously defined method to retrieve data from the Products entity in Sybase.

//disply the result of our 'find' method String productName = dao.findProductNameByProductName("Konbu"); System.out.println(productName);

Write Sybase Data

It is also simple to write data to Sybase, using the previously defined method.

//add a new entry to the Products entity dao.insert(newProductName, newProductName);

Since the JDBI library is able to work with JDBC connections, you can easily produce a SQL Object API for Sybase by integrating with the CData JDBC Driver for Sybase. Download a free trial and work with live Sybase data in custom Java applications today.