I am stuck with inserting data into my MS Access Database. I already converted the data into cell array but it still returns me the error indicating that I am inputting the wrong data type.

C = 

      'SGX 8873 K'

>> iscell(C)

ans =

       1

>> datainsert(conn,'VehicleLocation','col2','C')
Error using database/datainsert (line 58)
Input data must be a cell array or numeric matrix.

Been stuck on inserting the data into the database for quite some time now. The input data 'C' is already verified as cell array by the command iscell(C). Anybody got any idea what am I doing wrongly? Thanks.

[Umakant]

Can you tell me which release of MATLAB you are using? From the definition of variable 'C' given above, it looks like 'C' is of class 'char' and not a cell.

[Walter Roberson]

Umakant, examine the below:

>> 'ABC'

ans =

ABC

>> {'ABC'}

ans = 

      'ABC'

When you see a string with quotes around it and indented, that is indicating a cell array containing the string; if it were a plain string then it would be displayed without the quote marks or indentation.

[Tan Jun Hao]

Umakant, I am currently using r2015a.

I have attached a photo of the variable editor, which shows that C is a 1x1 cell.

Answer 1

[the cyclist]

Guessing you want to remove the quotes from around C in the datainsert statement. You are trying to insert the single character 'C', rather than your variable C.

[Tan Jun Hao]

C = 

      'SGX 8873 K'

>> iscell(C)

ans =

       1

>> datainsert(conn,'VehicleLocation','col2',C)
Cell contents reference from a non-cell array object.

Error in database/datainsert (line 72)
    insertField = [ insertField fieldNames{i}];  %#ok

Thanks for the prompt reply. However, MATLAB still indicates that I am not inputting a cell array data. Any idea how to solve this problem?

Answer 2

[Walter Roberson]

datainsert(conn,'VehicleLocation', {'col2'}, C)

The column names must be cell array of string.

[Tan Jun Hao]

datainsert(conn,'VehicleLocation',{'col2'},C)

Error using database/datainsert (line 106) [Microsoft][ODBC Microsoft Access Driver] Too few parameters. Expected 1.

Tried doing it before but couldn't work.

[Walter Roberson]

Sorry, I do not have that toolbox, so I cannot check the code to see what is happening.

Answer 3

[Thomas Koelen]

Are you sure you already created a database?

[Tan Jun Hao]

Yeah I connected to MS Access Database via Database Explorer.

[Thomas Koelen]

I didn't see your earlier post but I think this happens when one of the column names specified in a select statement does not exist in the table being queried. so it can't find VehicleLocation, try adding it first!

[Tan Jun Hao]

I added VehicleLocation already. You can see it in the PNG image I attached. It's at the left hand side of the screen.

[Walter Roberson]

You do not have a column named 'col2', you have a column named 'LicensePlate'

[Tan Jun Hao]

Alright thanks! That solved my problem. But now I am currently stuck at inserting multiple columns of data in one instance. Any ideas?