Week 5

PostgreSQL

Relationships and Constraints

Normalization

Joins

JDBC

SQL Injection2

IoC & DI

Practice

Assignment

Back end Track

Under construction

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Implementation plan:

  1. What is JDBC — Java Database Connectivity
  2. Adding the PostgreSQL JDBC driver dependency
  3. Establishing a connection: DriverManager.getConnection(url, user, password)
  4. Creating statements: Statement vs PreparedStatement
  5. Executing queries: executeQuery (SELECT) and executeUpdate (INSERT/UPDATE/DELETE)
  6. Processing results with ResultSet
  7. Closing resources (connection, statement, result set)
  8. Connection strings and configuration
  9. Exercise: query the PostgreSQL database from Java

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