Indexes are used to filter out records for which select would evaluate to 0 . Index files are placed in the current directory and each is named by changing the suffix to .hix or by adding a .hix suffix. EOF terminates the active session. By default all selected records are output. Set the debug trace level to level .
Higher levels produce more output.
Occasionally a particular mask may be used as a temporary bug workaround. Otherwise use at your own risk. A schema is similar to a C struct declaration with the struct keyword omitted. A schema specifies names and types for the fields in a database record. A C unsigned long variable whose string representation is a date.