Write "BIT" data type to existing PostgreSQL table from Matlab

Hi everyone,

I created a table in PostgreSQL that has a data column with the BIT type:

create table parameters (
	row_num serial,
	value_parameter bit(1),
	primary key (row_num);
);

After that I successfully connected to the PostgreSQL from MATLAB, and tried to add a record to the table:

conn = postgresql(username,password,'DatabaseName',"postgres",'PortNumber',5432);
my_table = table("0", 'VariableNames', 'value_parameter');
sqlwrite(conn, 'public.parameters', my_table);

As a result I get the error:

"The VariableNames property is a cell array of character vectors. To assign multiple variable names, specify nonempty names in a string array or a

cell array of character vectors".

I have tried many ways to write the request but invariably get the above error. How to correctly write such a request, or where can I read about it?

Thank you in advance

Answer 1

[Vimal Rathod]

Hi,

Try using the following code.

my_table = table("0", 'VariableNames', {'value_parameter'});

You were getting the error because you didn't put the variable names in the cell array format.

Refer to the following link to see another example with the same syntax

https://www.mathworks.com/help/matlab/ref/table.html#btw1ta9-2

[Anastasia Rybcova]

Thank you!