Archives: JDBC

Java – JDBC 4 – Update Annotation Example

The Update annotation is used to decorate a Query interface method to update one or more records in a database table. An Update annotation must include a sql annotation type element. Here’s an example of Update annotation:

Java – JDBC 4 – Select Annotation Example

Here’s an example of Select annotation to get all the active loans from the loan database:

The sql annotation allows I/O parameters as well (a parameter marker is represented with a question mark followed by an integer). Here’s an example of a parameterized sql query.

Java JDBC – Connect to PostgreSQL Database

Download PostgreSQL JDBC Driver: