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Lesson 6: Synchronize

The dbmlsync utility initiates MobiLink synchronization for SQL Anywhere remote databases. Before starting dbmlsync, add order data and comments to your remote database.

To set up your remote data (client-side)

1. Connect to the MobiLink client database in Interactive SQL:

   At a command prompt, type

   dbisql -c "eng=remote1;uid=DBA;pwd=sql"

2. Add an order to the RemoteOrders table in the client database.

   Execute the following command in Interactive SQL.

   INSERT INTO RemoteOrders (order_id, product_id, quantity, order_status)
    VALUES (1,12312,10,'new')

3. Add a comment to the OrderComments table in the client database.

   Execute the following command in Interactive SQL.

   INSERT INTO OrderComments (comment_id, order_id, order_comment)
    VALUES (1,1,'send promotional material with the order')

4. Commit your changes.

   Execute the following in Interactive SQL:

   COMMIT;

To start the synchronization client (client-side)

• At the command prompt, type the following on a single line:

  dbmlsync -c "eng=remote1;uid=DBA;pwd=sql" -e scn=on -o rem1.txt -v+

  Below is a description of each option:

  Option	Description
  -c	Specifies the connection string.
  -e scn	Sets SendColumnNames to on. This is required by direct row handling if you want to reference columns by name.
  -o	Specifies the message log file rem1.txt.
  -v+	The -v option specifies what information is logged. Using -v+ sets maximum verbose logging.

Once you have started the MobiLink synchronization client, an output screen appears indicating that the synchronization succeeded. SQL-based synchronization transferred rows in the client RemoteOrders table to the RemoteOrders table in the consolidated database.

Java or .NET processing inserted your comment in orderComments.txt. In the next procedure, you insert a response in orderResponses.txt to download to the remote database.

To return comments using direct row handling downloads (server-side and client-side)

1. Insert return comments. This action takes place on the server side.

   Add the following text to orderResponses.txt. You must separate entries using the tab character. At the end of the line, press Enter.

   1  1  Promotional material shipped
   

2. Run synchronization using the dbmlsync client utility.

   This action takes place on the client-side.

   At a command prompt, type the following on a single line.

   dbmlsync -c "eng=remote1;uid=DBA;pwd=sql" -o rem1.txt -v+ -e scn=on

   The MobiLink client utility appears.

   In Interactive SQL, select from the OrderComments table to verify that the row was downloaded.

For more information about dbmlsync, see SQL Anywhere Clients.