google apps script jbdc sql server database connection string error - sql-server

Question

I'm trying to connect to my local sql server database at my home network using the code that I found from this site Querying SQL Server with Google Apps Script via JDBC about 3 years ago which was marked being correct. However, I get the error message "We're sorry, a server error occurred. Please wait a bit and try again.". This error is from line 2 where the connection string is defined. I retried several times, but I always get the same error. When I searched this error, it seems like it could be too many things and I was not able to find any answers for my issue. Thanks.
This was the code that was marked being correct:
function readAzure() {
var conn = Jdbc.getConnection("jdbc:sqlserver://XYZ.database.windows.net:1433;databaseName=MYDATABSENAME","USERNAME","PASSWORD");
var stmt = conn.createStatement();
var rs = stmt.executeQuery("select * from helloworld");
var doc = SpreadsheetApp.create('azure');
var cell = doc.getRange('a1');
var row = 0;
while(rs.next()) {
cell.offset(row, 0).setValue(rs.getString(1));
cell.offset(row, 1).setValue(rs.getString(2));
row++;
}
rs.close();
stmt.close();
conn.close();
}
I also found another connection string code and when I try this format I get the same error.
var conn = Jdbc.getConnection("jdbc:sqlserver://IP-address:1433;" + "databaseName=DBName;user=username;password=password;");

Answer 1

Based on this documentation, you need to ensure that your database accepts connections from any of Apps Script's IP addresses. These are the address ranges you'll need to whitelist.
64.18.0.0 - 64.18.15.255
64.233.160.0 - 64.233.191.255
66.102.0.0 - 66.102.15.255
66.249.80.0 - 66.249.95.255
72.14.192.0 - 72.14.255.255
74.125.0.0 - 74.125.255.255
173.194.0.0 - 173.194.255.255
207.126.144.0 - 207.126.159.255
209.85.128.0 - 209.85.255.255
216.239.32.0 - 216.239.63.255
Also, from the documentation link above, there is a sample code that you can follow to set up external database via JDBC.
Here is a code that demonstrates how to write a single record to the database as well as a batch of 500 records.
// Replace the variables in this block with real values.
var address = 'database_IP_address';
var user = 'user_name';
var userPwd = 'user_password';
var db = 'database_name';
var dbUrl = 'jdbc:mysql://' + address + '/' + db;
// Write one row of data to a table.
function writeOneRecord() {
var conn = Jdbc.getConnection(dbUrl, user, userPwd);
var stmt = conn.prepareStatement('INSERT INTO entries '
+ '(guestName, content) values (?, ?)');
stmt.setString(1, 'First Guest');
stmt.setString(2, 'Hello, world');
stmt.execute();
}
// Write 500 rows of data to a table in a single batch.
function writeManyRecords() {
var conn = Jdbc.getConnection(dbUrl, user, userPwd);
conn.setAutoCommit(false);
var start = new Date();
var stmt = conn.prepareStatement('INSERT INTO entries '
+ '(guestName, content) values (?, ?)');
for (var i = 0; i < 500; i++) {
stmt.setString(1, 'Name ' + i);
stmt.setString(2, 'Hello, world ' + i);
stmt.addBatch();
}
var batch = stmt.executeBatch();
conn.commit();
conn.close();
var end = new Date();
Logger.log('Time elapsed: %sms for %s rows.', end - start, batch.length);
}
For more information, just read through to this documentation and check this thread and related SO question.