In order to access relational databases, Zim client-server generates SQL statements. You can see the statements generated by setting SQLTRACE on. Statements are generated when Zim statements containing references to SQL tables are parsed, compiled, or executed interpretively. Previewing the SQL statements generated provides an insight into the type or amount of work the database is going to be doing. This option is set using the command:

set sqltrace [on | off]

The default setting for SQLTRACE is OFF.