Lesson 2: Generate database schema

In this lesson, you generate a database schema, which includes a Dealer table, a non_sync_request table, a download_cursor synchronization script. This database schema satisfies the requirements for generating push requests.

To set up the database schema

Connect to the consolidated database:
1. In Sybase Central, right-click SQL Anywhere 11 and choose Connect.
2. Click the Identification tab.
3. Click ODBC Data Source Name, and type SIS_CarDealer_LP_DBLSN_CONDB. Click OK.
Start Interactive SQL:

In the left pane, right-click the database and choose Open Interactive SQL.

Execute the following statements to create and set up the Dealer and non_sync_request tables:

CREATE TABLE Dealer (
    name           VARCHAR(10) NOT NULL PRIMARY KEY,
    rating         VARCHAR(5),
    last_modified  TIMESTAMP DEFAULT TIMESTAMP
)

CREATE TABLE non_sync_request(
    poll_key       varchar(128)
)

Insert data into the Dealer table using the following statements:

INSERT INTO Dealer(name, rating) VALUES ('Audi', 'a');
INSERT INTO Dealer(name, rating) VALUES ('Buick', 'b');
INSERT INTO Dealer(name, rating) VALUES ('Chrysler', 'c');
INSERT INTO Dealer(name, rating) VALUES ('Dodge', 'd');
INSERT INTO Dealer(name, rating) VALUES ('Eagle', 'e');
INSERT INTO Dealer(name, rating) VALUES ('Ford', 'f');
INSERT INTO Dealer(name, rating) VALUES ('Geo', 'g');
INSERT INTO Dealer(name, rating) VALUES ('Honda', 'h');
INSERT INTO Dealer(name, rating) VALUES ('Isuzu', 'I');
COMMIT;

Execute the following command to create the MobiLink system tables and stored procedures. Replace c:\Program Files\SQL Anywhere 11\ with the location of your SQL Anywhere 11 installation.
read "c:\Program Files\SQL Anywhere 11\MobiLink\setup\syncsa.sql"

Execute the following statements to specify a download_cursor synchronization script and record the synchronization state to the ml_sis_sync_state system table:

CALL ml_add_table_script(
    'CarDealer',
    'Dealer',
    'download_cursor',
    'SELECT * FROM Dealer WHERE last_modified >= ?'
)
CALL ml_add_connection_script(
    'CarDealer',
    'publication_nonblocking_download_ack',
    'CALL ml_set_sis_sync_state( 
			     {ml s.remote_id},
        NULL,
     			{ml s.publication_name},
     			{ml s.username},
     			NULL,
     			{ml s.last_publication_download}
    )'
)
COMMIT;

This script sets the ml_sis_sync_state to record download-only synchronization. Recording the synchronization state allows you to reference the ml_sis_sync_state request_cursor event from the request_cursor event. Your specify the request_cursor event in the next lesson.

Close Interactive SQL.

Lesson 2: Generate database schema

To set up the database schema

See also