Create an index on the AMOUNT column of the PENALTIES table. : Index « Table Index « SQL / MySQL






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Create an index on the AMOUNT column of the PENALTIES table.

    
mysql>
mysql>
mysql> CREATE TABLE PENALTIES(
    ->     PAYMENTNO INTEGER NOT NULL,
    ->     PLAYERNO INTEGER NOT NULL,
    ->     PAYMENT_DATE DATE NOT NULL,
    ->     AMOUNT DECIMAL(7,2) NOT NULL,
    ->     PRIMARY KEY (PAYMENTNO)
    -> );
Query OK, 0 rows affected (0.00 sec)

mysql>
mysql> INSERT INTO PENALTIES VALUES (1, 6, '1980-12-08', 100);
Query OK, 1 row affected (0.00 sec)

mysql> INSERT INTO PENALTIES VALUES (2, 44, '1981-05-05', 75);
Query OK, 1 row affected (0.00 sec)

mysql>
mysql> CREATE INDEX PENALTIES_AMOUNT ON
    -> PENALTIES (AMOUNT);
Query OK, 2 rows affected (0.01 sec)
Records: 2  Duplicates: 0  Warnings: 0

mysql>
mysql> drop table penalties;
Query OK, 0 rows affected (0.00 sec)








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14.Get the descriptive data of the indexes defined on the PENALTIES table.
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16.Get the names of the indexes defined on the PENALTIES table.
17.Defining Indexes at Table-Creation Time
18.The syntax for CREATE INDEX is as follows
19.Removing Duplicates by Adding an Index
20.Removing Indexes
21.Create index of decimal type column
22.Create view for indexes
23.Drop an index by name
24.Add index to int type column
25.To create a unique-valued index, use the UNIQUE keyword instead of INDEX.
26.PRIMARY KEY INDEX_PRIM
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28.Adding or Dropping Indexes
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34.To include multiple columns in an index
35.Provide index definitions in addition to the column definitions.
36.Modifying Indexes of Existing Tables
37.A table can have multiple indexes.
38.Create a single-column index on c, and the second creates a multiple-column index that includes both c and i