In this task you are expected to fix an SQL query based on feedback. You will be given an SQL statement and an English description with what is wrong about that SQL statement. You must correct the SQL statement based off of the feedback. 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. 
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Question: SQL: SELECT T1.individual_last_name FROM Individuals AS T1 JOIN Organizations AS T2 JOIN Organization_Contact_Individuals AS T3 ON T1.individual_id = T3.individual_id AND T3.organization_id = T2.organization_id ORDER BY T2.uk_vat_number Desc LIMIT 1
Feedback: In step 2 also ensure that organization contact individuals date contact from is smallest for that specific individuals .

Answer: SELECT t3.individual_last_name FROM organizations AS t1 JOIN organization_contact_individuals AS t2 ON t1.organization_id  =  t2.organization_id JOIN individuals AS t3 ON t2.individual_id  =  t3.individual_id WHERE t1.uk_vat_number  =  (SELECT max(uk_vat_number) FROM organizations) ORDER BY t2.date_contact_to ASC LIMIT 1


Question: SQL: SELECT Count ( * ) FROM Pets WHERE pet_age > 20
Feedback: Put has pet table and age instead of pets table and pet age .

Answer: SELECT count(*) FROM student AS T1 JOIN has_pet AS T2 ON T1.stuid  =  T2.stuid WHERE T1.age  >  20


Question: SQL: SELECT T1.Model_name FROM chip_model AS T1 EXCEPT SELECT T1.Model_name FROM chip_model AS T1 JOIN screen_mode AS T2 JOIN phone AS T3 ON T1.Model_name = T3.chip_model AND T3.screen_mode = T2.Graphics_mode WHERE T2.Type = "Full"
Feedback: You need to use accreditation type in place of type.

Answer:
SELECT model_name FROM chip_model EXCEPT SELECT chip_model FROM phone WHERE Accreditation_type  =  'Full'