.


:




:

































 

 

 

 


Access




 

Access . . Access .

5.1.1 .

, .

, . , , _ , _ . . .

5.1.2

, , . , . . . Access , .. , :

 

 

5.1 -

 

. , . . , . : , , , /, , , , OLE, , . .

, , ( 255). ( 65535 ). - , . - ( 1), . . OLE - (, Excel, Word, , ), .

.

: ( 5.1 ), . , , , - , - : 999-99-99. :

, , .

, , ,

.

(Indexed) . , . , . , λ , . . , _, , .

(Indexed) :

( ).
( ) . .
( ) . .  

, , . , , . .

OLE .

5.1.3

. , : , , , . , . , . . 5.2 .

 

5.2 -

 

, . Access: , ( ) ..

(). () .

5.2.1

: , , , , .

, . . , .. . , . . , .

5.2.2

, . :

, ;
, .

.

, , / . . ( ), . , _, . _, AVG () .

5.2.3

, . .

, . , Access . , (, 1:∞). , .

. / . , . .

5.2.4

/ , . .

, , () . , . , , .

/ . Access . . , . .

, Access . , . . , .

DELETE

: , FROM, WHERE.

, (__=0). .

DELETE .*, ., .__

FROM

WHERE (((.)="") AND ((.__)=0));

 

5.2.5

. /. . . . , . - , , , .

UPDATE

: , .

.

10 % , 15.

 

UPDATE _ SET _. = []*1.1

WHERE (((_.)<15));

5.2.6

, .

/ SQL .

TRANSFORM

: (, , , ). , , .

, . , .

 

TRANSFORM Sum(._) AS [C___]

SELECT .

FROM INNER JOIN ( INNER JOIN ( INNER JOIN ON . = .) ON ._ = ._) ON ._ = ._

GROUP BY .

PIVOT .;

 

 

Access. , . : , , ..

5.3.1

: , , , . .

5.3.2

, . :

- ( );

- (, );

- ( ).

.

. - , .

Access :

- ,

- ,

- ,

- ,

- ,

- ,

- ,

- ,

- ,

- ,

- .

, , - , - , .

(Toolbox), 5.3 ( Access 2000-2002), ( 5.4)

 

5.3 -





:


: 2017-01-28; !; : 1104 |


:

:

! . .
==> ...

1925 - | 1720 -


© 2015-2024 lektsii.org - -

: 0.043 .