SQL Database - Import Specific Rows from Large file

Question

Hayden Raabe-Garmon 2023-3-16

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https://ww2.mathworks.cn/matlabcentral/answers/1930045-sql-database-import-specific-rows-from-large-file

回答： Srija Kethiri 2023-4-18

Hello!

I am dealing with some fairly large SQL Database Tables, some that can take multiple minutes to fetch/read. Is there a way to import select rows from the table to decrease processing time? This processing time extendings the loading time for an app that I am designing.

(Parralell Computing Toolbox is not an option)

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Answer 1

Srija Kethiri 2023-4-18

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Hi Hayden,

I understand that you have a large database and want to import only a few rows from it, to decrease the processing time.

You can use the “databaseImportOptions” function and set the “RowFilter” property of the function, to the desired condition to import the data you required.

To know more about “databaseImportOptions”, please refer to the following documentation:

https://in.mathworks.com/help/database/ug/databaseimportoptions.html

Hope this helps!