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SQL Anywhere 11.0.0 » SQL Remote » Replication Design for SQL Remote » SQL Remote installation design » Publishing data


Publishing only some rows in a table

You can create a publication that contains all the columns, but only some of the rows, of a table from Sybase Central. In either case, you do so by writing a search condition that matches only the rows you want to publish.

Sybase Central and the SQL language provide two ways of publishing only some of the rows in a table; however, only one way is compatible with MobiLink.

  • WHERE clause   You can use a WHERE clause to include a subset of rows in an article. All subscribers to the publication containing this article receive the rows that satisfy the WHERE clause.

  • Subscription expression   You can use a subscription expression to include a different set of rows in different subscriptions to publications containing the article.

You can combine a WHERE clause and a subscription expression in an article. You can specify them in Sybase Central or in a CREATE PUBLICATION statement.

Use the Subscription expression when different subscribers to a publication are to receive different rows from a table. The Subscription expression is the most powerful method of partitioning tables.

Use the WHERE clause to exclude the same set of rows from all subscriptions to a publication.