Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE documents ( document_type_code VARCHAR, document_name VARCHAR )

### Question ###
What is the type of the document named 'David CV'?

### Accurate SQL ###

SELECT document_type_code FROM documents WHERE document_name = "David CV"