Deploying SQLJ applications
Use Structured Query Language in Java™ (SQLJ) to develop data access applications that connect to DB2® databases. SQLJ is a set of programming extensions that enable you to use the Java programming language to embed statements that provide SQL (Structured Query Language) database requests.
About this task
The advantages of developing applications with SQLJ include improved performance and a shorter,
more efficient development cycle. You can achieve the following with SQL:
- Improve performance by using static SQL statements.
- Reduce the development cycle:
- Write less code with the simpler SQLJ syntax, which reduces the number of lines of code that is required to execute statements, set parameters, and retrieve parameters.
- Detect programming errors earlier in the development phase with the online check function, which performs data type validation and schema validation. See the DB2 documentation for a complete list of customization options.
The application server includes enhanced SQLJ support for applications that use container-managed
persistence (CMP). The enhanced support includes the following items: include:
- Deploying CMP beans during the application installation in the application server.
- Customizing and binding SQLJ profiles with the administrative console or scripting.
- Customizing and binding SQLJ applications again without needing to reinstall the application.