Create Stored Procedures

Right click on the procedures folder and choose New, then Procedure.

Enter the name of the procedure as get_po_header_data. Click Create

The editor will then be shown.

Between the BEGIN and END statements, insert the SELECT statements as shown. These are implicit select statements whose results sets are passed to the caller.

SELECT COUNT(*) AS CREATE_CNT, "HISTORY.CREATEDBY.EMPLOYEEID"
     FROM "PO.Header" WHERE PURCHASEORDERID IN (
                     SELECT PURCHASEORDERID
                          FROM "PO.Item"
          WHERE "PRODUCT.PRODUCTID" IS NOT NULL)
GROUP BY  "HISTORY.CREATEDBY.EMPLOYEEID";

SELECT COUNT(*) AS CHANGE_CNT, "HISTORY.CHANGEDBY.EMPLOYEEID"
     FROM "PO.Header"  WHERE PURCHASEORDERID IN (
                     SELECT PURCHASEORDERID
                          FROM "PO.Item"
          WHERE "PRODUCT.PRODUCTID" IS NOT NULL)
GROUP BY  "HISTORY.CHANGEDBY.EMPLOYEEID";

The completed code should look similar to this.

PROCEDURE "get_po_header_data"( )
   LANGUAGE SQLSCRIPT
   SQL SECURITY INVOKER
   --DEFAULT SCHEMA <default_schema_name>
   READS SQL DATA AS
BEGIN

SELECT COUNT(*) AS CREATE_CNT, "HISTORY.CREATEDBY.EMPLOYEEID"
     FROM "PO.Header" WHERE PURCHASEORDERID IN (
                     SELECT PURCHASEORDERID
                          FROM "PO.Item"
          WHERE "PRODUCT.PRODUCTID" IS NOT NULL)
GROUP BY  "HISTORY.CREATEDBY.EMPLOYEEID";

SELECT COUNT(*) AS CHANGE_CNT, "HISTORY.CHANGEDBY.EMPLOYEEID"
     FROM "PO.Header"  WHERE PURCHASEORDERID IN (
                     SELECT PURCHASEORDERID
                          FROM "PO.Item"
          WHERE "PRODUCT.PRODUCTID" IS NOT NULL)
GROUP BY  "HISTORY.CHANGEDBY.EMPLOYEEID";

END

Save the procedure.

Perform a build on your hdb module.

Switch over to the Database Explorer page and look for your procedure. Right-click on the procedure and choose Generate Call Statement.

A new SQL tab will be opened with the CALL statement inserted. Click the Run button.

The two results are then shown in another tab.

Note the execution time.