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_62790 ( "Constituency number" text, "Name" text, "Reserved for ( SC / ST /None)" text, "District" text, "Number of electorates (2009)" real )

### Question ###
What was the highest number of 2009 electorates for Raisen when the consituency number was 142?

### Accurate SQL ###

SELECT MAX("Number of electorates (2009)") FROM table_62790 WHERE "District" = 'raisen' AND "Constituency number" = '142'