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_19149550_7 ( london_borough VARCHAR, black_caribbean_population VARCHAR )

### Question ###
Where are the london borough with the black caribbean population of 17974?

### Accurate SQL ###

SELECT london_borough FROM table_19149550_7 WHERE black_caribbean_population = 17974