# Graph operators

### The "plus" operator​

If placed at the front of the model selector, + will select all parents of the selected model. If placed at the end of the string, + will select all children of the selected model.

### The "n-plus" operator​

Changelog

You can adjust the behavior of the + operator by quantifying the number of edges to step through.

### The "at" operator​

The @ operator is similar to +, but will also include the parents of the children of the selected model. This is useful in continuous integration environments where you want to build a model and all of its children, but the parents of those children might not exist in the database yet. The selector @snowplow_web_page_context will build all three models shown in the diagram below.

@snowplow_web_page_context will select all of the models shown here

\$ dbt run --models @my_model          # select my_model, its children, and the parents of its children

### The "star" operator​

The * operator matches all models within a package or directory.