pl sql
# just don't do it
PL/SQL
DECLARE TYPE <type_name> IS RECORD ( <columnl> <datatype>, ); BEGIN <execution_section>; END;
function pl sql with select
CREATE OR REPLACE FUNCTION get_total_sales( in_year PLS_INTEGER ) RETURN NUMBER IS l_total_sales NUMBER := 0; BEGIN -- get total sales SELECT SUM(unit_price * quantity) INTO l_total_sales FROM order_items INNER JOIN orders USING (order_id) WHERE status = 'Shipped' GROUP BY EXTRACT(YEAR FROM order_date) HAVING EXTRACT(YEAR FROM order_date) = in_year; -- return the total sales RETURN l_total_sales; END;
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