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ANY SOME
IN EXISTS ANY
IN EXISTS ANY - 2
ANY ?
ANY ? - 2
ANY ? - 3
ALL

ANY ALL
ANY, ALL EXIST ?
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ANY ALL EXISTS NULL
COUNT EXISTS

SQL
14. UNION

?
UNION
UNION
UNION ORDER BY

- 2
- 3

SQL
15. ,
DML

NULL
(INSERT)




UPDATE

NULL-

SQL
16.
INSERT

,
DELETE
DELETE - 2
UPDATE
DML

SQL
17.



:

,


SQL
18.


(NULL)
,





CHECK
,

- 2

SQL
19.



/FOREIGN KEY




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, ?


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- 3
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, ͨ - 2

SQL
20. . .
?
CREATE VIEW
CREATE VIEW - 2






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SQL
21.


__.
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,
ר
,

SQL
22. ?




GRANT
. .

ALL PUBLIC
WITH GRANT OPTION


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? - 2
? - 3




SQL
23. SQL




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? - 2
SQL ?
:
: - 2

- 2


SQL
24. SQL ?

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