Write a query to display the entire contents of the 'electricity_connection_type'. Display the records in ascending order based on their connection name.

Sure, here is a SQL query that will display the entire contents of the 'electricity_connection_type' table, sorted in ascending order based on their connection name:

SELECT * 
FROM electricity_connection_type 
ORDER BY connection_name ASC;

Here's a step-by-step breakdown of the query:

1. SELECT * - This part of the query selects all columns from the table. The asterisk (*) is a wildcard character that represents all columns.

2. FROM electricity_connection_type - This part of the query specifies the table from which to retrieve the data. In this case, the table is 'electricity_connection_type'.

3. ORDER BY connection_name ASC - This part of the query sorts the results in ascending order based on the 'connection_name' column. 'ASC' stands for ascending. If you wanted to sort the results in descending order, you would use 'DESC' instead.