title: Find all the persons which contains the provided resources
body: <p>Below are the tables:</p>
  <pre><code>CREATE TABLE Person(
      PersonID INT PRIMARY KEY,
      FirstName VARCHAR(10),
      LastName VARCHAR(10));
  
  CREATE TABLE Resources(
      ResourceID CHAR(3) PRIMARY KEY
  );
  
  CREATE TABLE PR (
      PersonID INT,
      ResourceID CHAR(3),
  CONSTRAINT pkpr PRIMARY KEY (PersonID, ResourceID),
  CONSTRAINT fkPersonID FOREIGN KEY (PersonID) REFERENCES Person(PersonID),
  CONSTRAINT fkResourceID FOREIGN KEY (ResourceID) REFERENCES Resources(ResourceID));
  
  
  INSERT INTO Person(PersonID, FirstName, LastName) VALUES (1, 'Bill', 'Smith'),(2, 'John','Jones');
  INSERT INTO Resources (ResourceID) VALUES ('ABC'),('DEF'),('HIJ');
  INSERT INTO PR (PersonID, ResourceID) VALUES (1,'ABC'),(1,'DEF'),(2,'ABC'), (2,'HIJ'), (1,'HIJ');
  </code></pre>
  <p>How to find all the persons which has resources ('ABC', 'DEF') ?</p>
  <p>With above inserted data it should return person Bill Smith</p>
  <p>I am using PostgreSql.</p>