Hi,
To handle SQL freezes or failures in MATLAB, you can use a combination of try/catch blocks and setting a timeout for your database connection.
- Setting a Timeout: You can specify "LoginTimeout" while establishing connection to the database. It specifies the number of seconds that the driver waits while trying to connect to a database before throwing an error. Refer to the "Name-Value Arguments" section of this link for more details.
- Using try/catch: You can wrap your SQL pull in a try/catch block to handle any errors and retry the operation if it fails.
maxRetries = n; % Maximum number of retries
retryCount = 0;
success = false;
% Define sql query
while ~success && retryCount < maxRetries
try
% Execute SQL query
curs = exec(conn, sqlquery);
success = true; % If query is successful, set success to true
catch ME
% If an error occurs, increment retry count and display error message
retryCount = retryCount + 1;
disp(['Attempt ' num2str(retryCount) ' failed: ' ME.message]);
pause(2); % Pause for 2 seconds before retrying
end
end
if ~success
error('Failed to execute SQL query after multiple attempts.');
end
