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In 1959 the Russian-Sri Lankan Friendship Society was established in Moscow. Our countries have similar approaches to the solution of the majority of pressing international or regional challenges. Upon the request from Sri Lanka Russia provided humanitarian assistance amounting to million in August 2017 following the destructions caused by floods and landslides across the island.Our ties further expanded after the visits of Prime Minister of Sri Lanka H. There are no contradictions or unresolved issues in our relations. Both countries’ foreign ministries maintain regular bilateral contacts. Russia continues to be the largest consumer of Ceylon tea. On June 15, 2019 President of the Russian Federation H. Evgeniy Bushmin and Deputy Chairman of the State Duma Mr. The Sri Lankan parliamentary delegation headed by Minister of Transport & Civil Aviation Hon. Arjuna Ranatunga participated in the Second International Forum «Development of Parliamentarism» that was held in Moscow on July 1-3, 2019. The Intergovernmental Agreement on Military Cooperation between Russia and Sri Lanka was signed on September 3, 2018 during the visit of the Sri Lankan delegation led by Secretary to the Ministry of Defence Mr. The value of bilateral trade between Russia and Sri Lanka in 2018 has reached 0 million (Russia’s import amounted to 4.4 million and the exports – to 5.7 million).Moscow and Colombo maintain a close political dialogue at the highest level. Mahinda Rajapaksa) to Russia took place in 2010, during which he met then President of the Russian Federation H. The first working visit by a Sri Lankan President (H. SELECT c.country, CAST( AVG(0.5*POWER(c.bore,3.0) ) AS DECIMAL(10,2) ) AS weight FROM ( SELECT ship FROM Outcomes INTERSECT SELECT class FROM Classes EXCEPT SELECT class FROM Ships UNION ALL SELECT class FROM Ships ) AS cte1 LEFT OUTER JOIN Classes AS c ON cte1.ship=c.class GROUP BY country select country, convert(numeric(10, 2), avg(power(bore, 3)/2)) weight from (select country, bore, name from classes c, ships s where s.class=c.class union select country, bore, ship from classes c, outcomes o where o.ship=c.class and not in(select distinct name from ships))x group by country The exercise itself is faulty (IMO).What you suppose to do is JOIN the two tables, Classes and Ships, based on their Class, and calculate the average weight based on the actual amount of ships there are.
The Classes relation includes the class name, type (bb for a battle ship, or bc for a battle cruiser), country where the ship was built, number of main guns, gun caliber (diameter of the gun barrel, in inches), and displacement (weight in tons).(it could be for all sorts of reasons: error in logic or ineffiency etc...) The schema Query Question: The database of naval ships that took part in World War II is under consideration.The database has the following relations: Classes(class, type, country, num Guns, bore, displacement) Ships(name, class, launched) Battles(name, date) Outcomes(ship, battle, result) Ships in classes are arranged to a single project. On June 26, 2019 on the sidelines of the International Military-Technical Forum «Army-2019» (Kubinka, Moscow region of Russia) Chief of the General Staff of the Armed Forces of Russia Valery Gerasimov held talks with Chief of Defence Staff of the Sri Lanka Armed Forces Admiral Ravindra Wijegunaratne.
On the sidelines of the 68th Session of the UN General Assembly on September 27, 2013 H. Kapila Waidyaratne PC attended the «VII Moscow Conference on International Security».I'm trying to write an SQL query to solve a question at