All questions refer to the conceptual model and short-form s…
All questions refer to the conceptual model and short-form schema for a conference database shown below. For each information request below, write (i) a relational algebra query, and (ii) a SQL query to retrieve exactly the requested information. If some parts of the request are not possible to express in relational algebra, then note this. First information request: Find the titles of all talks that were given in Zurich (that is a location!) at any time in the year 1932. Remember to write first a relational algebra query, and then a SQL query to answer this question. Reminder: To write the relational operators