instruction:
In this task you are expected to provide an SQL statement from an english description of what that SQL statement does. The description may include multiple steps but you should only ouput one SQL statement that accomplishes every step. An SQL query works by selecting data from a table where certain conditions apply. A table contains columns where every row in that table must have a value for each column. Every table has a primary key that uniquely identifies each row, usually an id. To choose which columns are returned you specify that after the "SELECT" statement. Next, you use a "FROM" statement to specify what tables you want to select the data from. When you specify a table you can rename it with the "AS" statement. You can reference that table by whatever name follows the "AS" statement. If you want to select data from multiple tables you need to use the "JOIN" statement. This will join the tables together by pairing a row in one table with every row in the other table (Cartesian Product). To limit the number of rows returned you should use the "ON" statement. This will only return rows where the condition specified after the statement is true, this is usually an equals operator with primary keys. You can also use the "WHERE" statement to specify that only rows with column values statisfying a certain condition, should be returned. The "GROUP BY" statement will group rows together that have equal column values for whatever columns follows the statement. The "HAVING" statement will return groups that statisfy whatever condition follows the statement. Any column(s) being returned from grouped rows must either be an aggregate function, (AVG, MAX, COUNT, SUM, ...) of a column, or the column(s) that the data was grouped by. To sort the returned data you can use the "ORDER BY" command which will order the data by whatever aggregate function or column follows the statement. The "DESC" statement will sort in descending order and the "ASC" statement will sort in ascending order. Finally, you can use the "LIMIT" statement to return a certain number of rows. When "*" is used in an SQL statement every column is returned. For example, SELECT * FROM table WHERE attribute = 1, will select every column from rows with the attribute column equal to 1.
question:
Step 1: For each row in TV_Channel table, find the corresponding rows in Cartoon table.
Step 2: find series_name, Country of the results of step 1 whose Written_by equals Ben Jones and Directed_by equals Michael Chang
answer:
SELECT T1.series_name , T1.Country FROM TV_Channel AS T1 JOIN Cartoon AS T2 ON T1.id = T2.Channel WHERE T2.Written_by = "Ben Jones" AND T2.Directed_by = "Michael Chang"


question:
Step 1: For each row in races table, find corresponding rows in circuits table and in lapTimes table.
Step 2: find the average lap in the results of step 1 whose country equals Monaco Grand Prix and country equals 2008
answer:
SELECT Avg ( T3.lap ) FROM circuits AS T1 JOIN races AS T2 ON T1.circuitId = T2.circuitId JOIN lapTimes AS T3 ON T2.raceId = T3.raceId WHERE T1.country = 2008 AND T1.country = "Monaco Grand Prix"


question:
Step 1: For each row in routes table, find corresponding rows in airports table and in airlines table.
Step 2: find the number of rows of each value of airports's country in the results of step 1.
Step 3: find airlines's country of the results of step 1 with largest value in the results of step 2
answer:

SELECT T3.country FROM routes AS T1 JOIN airports AS T2 ON T2.apid = T1.dst_apid JOIN airlines AS T3 ON T1.alid = T3.alid GROUP BY T2.country ORDER BY Count ( * ) Desc LIMIT 1