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 table_30437 ( "Institution" text, "Location" text, "Founded" real, "Affiliation" text, "Enrollment" real, "Team Nickname" text, "Primary conference" text )

### Question ###
What's the nickname of the team with enrollment of 40747?

### Accurate SQL ###

SELECT "Team Nickname" FROM table_30437 WHERE "Enrollment" = '40747'