Database Reference
In-Depth Information
Copy the results of the second statement, the
CREATE TABLE
statement it re-
turns. Paste that into a text editor. Then use the
DROP TABLE
statement to delete
the table
birds_wing_shapes
in
mysql
.
In your text editor, change a few things in the
CREATE TABLE
statement you
copied. First, change the storage engine — the value of
ENGINE
for the table —
to a MyISAM table, if it's not already. Next, change the character set and colla-
tion for the table. Set the character set to
utf8
and the collation to
ut-
f8_general_ci
.
Now copy the
CREATE TABLE
statement you modified in your text editor and
paste it into the
mysql
monitor and press
[Enter]
to run it. If you get an error,
look at the confusing error message and then look at the SQL statement in your
text editor. Look where you made changes and see if you have any mistakes.
Make sure you have keywords and values in the correct places and there are no
typos. Fix any mistakes you find and try running the statement again. Keep trying
to fix it until you're successful. Once you're successful, run the
DESCRIBE
state-
ment for the table to see how it looks.
4. Create two more tables, similar to
birds_wing_shapes
. One table will store
information on the common shapes of bird bodies, and the other will store in-
formation on the shapes of their bills. They will also be used for helping bird-
watchers to identify birds. Call these two tables
birds_body_shapes
and
birds_bill_shapes
.
For the
birds_body_shapes
table, name the first column
body_id
, set the
data type to
CHAR(3)
, and make it a
UNIQUE
key column. Name the second
column
body_shape
with
CHAR(25)
, and the third column
body_example
,
making it a
BLOB
column for storing images of the bird shapes.
For the
birds_bill_shapes
table, create three similar columns:
bill_id
with
CHAR(2)
and
UNIQUE
;
bill_shape
with
CHAR(25)
; and
bill_example
, making it a
BLOB
column for storing images of the bird
shapes. Create both tables with the
ENGINE
set to a MyISAM, the DEFAULT
CHARSET,
utf8
, and the
COLLATE
as
utf8_general_ci
. Run the
SHOW
CREATE TABLE
statement for each table when you're finished to check your
work.
