MATLAB DATABASE TOOLBOX RELEASE NOTES Podręcznik Użytkownika Pobierz pdf (Strona 511)

100

101

readall

7-81

Read every record in the DatabaseDatastore object dbds.

data = readall(dbds)

data =

productNumber stockNumber supplierNumber unitCost productDescription

_____________ ___________ ______________ ________ __________________

1.00 400345.00 1001.00 14.00 'Building Blocks'

2.00 400314.00 1002.00 9.00 'Painting Set'

3.00 400999.00 1009.00 17.00 'Slinky'

4.00 400339.00 1008.00 21.00 'Space Cruiser'

5.00 400455.00 1005.00 3.00 'Tin Soldier'

6.00 400876.00 1004.00 8.00 'Sail Boat'

7.00 389123.00 1007.00 16.00 'Engine Kit'

8.00 212569.00 1001.00 5.00 'Train Set'

9.00 125970.00 1003.00 13.00 'Victorian Doll'

10.00 888652.00 1006.00 24.00 'Teddy Bear'

11.00 408143.00 1004.00 11.00 'Convertible'

12.00 210456.00 1010.00 22.00 'Hugsy'

13.00 470816.00 1012.00 16.50 'Pancakes'

14.00 510099.00 1011.00 19.00 'Shawl'

15.00 899752.00 1011.00 20.00 'Snacks'

To change the output data format, see the preference setting 'DataReturnFormat' in

setdbprefs.

Close the DatabaseDatastore, cursor, and database connection.

close(dbds)

• “Import Data Using a DatabaseDatastore”

• “Analyze Large Data Sets in a Database with MapReduce”

Input Arguments

dbds — Datastore containing data in database

DatabaseDatastore object

Datastore containing data in database, specified as a DatabaseDatastore object

created using datastore.

Output Arguments

data — Query results

cell array | matrix | table | structure | dataset

1 2 ... 506 507 508 509 510 511 512 513 514 515 516 ... 683 684

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