using result from a stored procedure with parameters as value for gauge chart - crystal reports in asp.net application

问题

I have a stored procedure that takes in 2 parameters and returns an integer value. I would like this value to be the value for a gauge chart on the page. The 2 parameters will change depending on the attributes of the selected item. Is there a simple way to pass the one value from the stored procedure to the chart to display? This will be embedded in an asp.net application (vb) - so depending on the previously selected item, the values for the parameters and result will change. thank you for your help.

回答1:

1. Create the package

   CREATE OR REPLACE PACKAGE REPORTING AS
   
   type query_results is ref cursor;
   
   PROCEDURE barfoo (one IN INTEGER, two IN INTEGER, three IN OUT REPORTING.query_results);
   

   END REPORTING;

2. Create the stored procedure

   CREATE OR REPLACE PROCEDURE BARFOO ( one IN INTEGER DEFAULT NULL, two IN INTEGER DEFAULT NULL, three IN OUT reporting.query_results ) AS BEGIN

   open three for select one + two total from dual ;

   END BARFOO;

3. Build the report

3a. Ensure that stored procedures will be visible in the Database 'Expert'

3b. Add the stored procedure to the report

3c. Add Chart

Insert | Chart... | Type tab | Gauge, then Data tab

4. The result

来源：https://stackoverflow.com/questions/10953789/using-result-from-a-stored-procedure-with-parameters-as-value-for-gauge-chart