database repair (remove empty pages)

[#1]

I know that in Microsoft Access there is a mechanism called Repair Database, which as result optimizes the performance and the size of the database.

Is there any similar mechanism in SQL Anywhere?

We have currently problems of database size (some gigabytes), and we know that the actual data is not that big, but the most of size is 'debris' remaining from INSERT and DELETE

[chris_keating]

In many cases, space that has been used in the database and freed will get reused. If that is not the case in your environment (the growth is an one-time event), rebuilding the database makes sense. Otherwise, the cost of rebuilding a database that will grow again may not provide much benefit.

There are two approaches to rebuilding a database that is involved in replication or synchronization.

• (Preferred) Rebuilding databases involved in synchronization or replication (dbunload)
• Rebuilding databases involved in synchronization or replication (manual)