Retrieving data from a query result

While working with the database, the basic part is the extraction of data through executed query. This recipe will illustrate how it is done when using the standard library database/sql package.

Getting ready

Verify if Go is properly installed by calling the go version command in your Terminal. If the command fails, follow the Getting ready section in the first recipe of this chapter. 

Set up the PostgreSQL server, as mentioned in the first recipe of this chapter.

How to do it...

1. Run the following SQL script against your sample database:

       DROP TABLE IF EXISTS post;
       CREATE TABLE post (
         ID serial,
         TITLE varchar(40),
         CONTENT varchar(255),
         CONSTRAINT pk_post PRIMARY KEY(ID)
       );
       SELECT * FROM post;
       INSERT INTO post(ID,TITLE,CONTENT) VALUES
                       (1,'Title One','Content One'),
                       (2,NULL,'Content Two');

2. Open the console and create the folder chapter08/recipe07...