To find out the average price for each manufacturer: use the GROUP BY clause : AVG « Aggregate Functions « Oracle PL / SQL






  1. Oracle PL / SQL
  2. Aggregate Functions
  3. AVG

To find out the average price for each manufacturer: use the GROUP BY clause

   
SQL>
SQL> CREATE TABLE cars
  2  (
  3    MAKER  VARCHAR (25),
  4    MODEL  VARCHAR (25),
  5    PRICE  NUMERIC
  6  );

Table created.

SQL>
SQL> INSERT INTO CARS VALUES('CHRYSLER','CROSSFIRE',33620);

1 row created.

SQL> INSERT INTO CARS VALUES('CHRYSLER','300M',29185);

1 row created.

SQL> INSERT INTO CARS VALUES('HONDA','CIVIC',15610);

1 row created.

SQL> INSERT INTO CARS VALUES('HONDA','ACCORD',19300);

1 row created.

SQL>
SQL> INSERT INTO CARS VALUES('FORD','MUSTANG',15610);

1 row created.

SQL> INSERT INTO CARS VALUES('FORD','LATESTnGREATEST',NULL);

1 row created.

SQL> INSERT INTO CARS VALUES('FORD','FOCUS',13005);

1 row created.

SQL>
SQL>
SQL> SELECT
  2     maker,
  3     AVG(price) average_price
  4  FROM cars
  5  GROUP BY maker;
SQL>
SQL> drop table cars;

Table dropped.

SQL>
SQL>








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