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A method is described which automatically prompts the user for a row connect or when a row connector is required. A row connector is required when more than one row condition is to be defined.
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Prompting for a Connector in Prompted Query
A method is described which automatically prompts the user for a row
connect or when a row connector is required. A row connector is required when
more than one row condition is to be defined.
When issuing a query, the user can specify row conditions which limit the
rows that are retrieved from a table in the database. Once a row condition has
been specified, the user may decide to define another row condition. This
requires that the row conditions be joined together using an AND or OR
connector. This method provides a mechanism for prompting the user for a row
connector once a row condition has been completely defined.
In the prompted query environment, the user is prompted through the steps
of defining a row condition. Once a row condition is defined and the user
chooses to define another row condition, the user must join the next row
condition with the previous one using AND or OR. At this time, the user is
prompted with the two choices before the next row condition is defined, for
example, the pop-up window, shown in Fig. 1.
When AND or OR is selected, the method automatically places parentheses
around the OR conditions such that OR conditions are evaluated first before the