How to write query when there is "read-only access" to sqldatabase ? What does it mean? eg. for each customer cal unq id for each day

Table contains the following cols:
timestamp, date, customer_id, page_id

For example,

Query is: for each customer, identify the first "page_id" that customer visited most recent day.

If there is a "read-only access" databse. Are queries written differently?

Thanks in advance.

>Solution :

Read-only access means you can only read and do query’s that can read the database.

You won’t be able to insert,update or drop tables.