Exploring the SELECT statement
As we saw in the previous chapter, we can use the SELECT statement to filter our datasets using the equality condition. In the same way, we can filter records using > or < conditions, such as in the following example:
forumdb=> select * from categories where pk > 2;
pk | title | description
----+-----------------------+---------------------------------
3 | Programming Languages | All about programming languages
(1 row)
The preceding query returns all records that have pk > 2.
Another condition that we can use with the SELECT statement is the like condition. Let’s take a look at this next.