Objects

QMF Data Flow -

There are five key areas or object types in QMF:

Profile: This contains the QMF user profile, which details information about the QMF environment. On this screen, we can change options such as case sensitivity, language (query type), the number of lines on a printed report, the width of a printed report, and default printer settings. We can display this information using the QMF command 'SHOW PROFILE'.
Query: This area holds the query currently being written or the most recent query executed. When We enter the command 'SHOW QUERY' or press the QUERY key, the contents of the current query are displayed. All queries are created from this panel.
Data: This section contains the data retrieved from the most recent query. The data is not accessed directly; we can view it formatted by the current form using the 'SHOW REPORT' command.
Form: This area specifies the format in which the data is to be presented. We can display the current form by entering the command 'SHOW FORM'.
PROC: This contains the current written procedure or the most recent procedure executed. A procedure consists of a series of QMF commands followed by one RUN command. We can display the current contents of PROC using the 'SHOW PROC' command. A procedure functions similarly to a macro in a word processing environment, allowing multiple QMF commands to be run together.