Even with parameters, reports reading entire data source and then filtering

Question

I'm working with an Oracle database (read-only access) and Crystal Reports 2008.  I have created a report and added three parameters for which I have already done all necessary steps in the select expert.  But when I do a Print preview of the report, and after selecting the parameter values, the report tries to read all of the data source records before the parameters are utilized by the report.  In other words, if the data source has 100,000 records, the report will return (in the background) all 100,000 records and then filter among these returned records to present/display the data according to the provided parameter values.  Instead, I would like it to use the parameters first so that only those records that meet the parameter value criteria are read into the report from the "get go"...Since I only have read only access to the Oracle database, I cannot write a stored procedure either...(company policy)...Can parameters be used to read in only pertaining records instead of filtering already read in records in a given report?  Is there some syntax that can be entered into a Command type connection to do this?

Answer 1

I've tried that but I'm now getting an error on line 6...
Crystal Reports Error:
Failed to retrieve data from the database.
Details: HYooo:[Oracle][ODBC][Ora]ORA-00911: invalid character
ORA-06512: at line 6
[Database Vendor Code: 911 ]
for the following syntax: (Not sure why...any help would be extremely appreciated!)
DECLARE
varCCN CHAR(7);
varMASLOC char(3);
varWO char(10);
BEGIN
EXECUTE IMMEDIATE '
SELECT Trim(DB.D_WO.SERIAL) AS Serial,
Trim(DB.WO.WO_NUM) AS WO,
DB.WO.WO_LINE AS Line,
DB.WO_HDR.WO_DESCRIPTION,
DB.WO.ITEM,
DB.WO.REVISION,
CASE WHEN DB.WO.ITEM=' || '''\''' || 'THEN DB.WONSD.DESC_ ELSE DB.ITEM.DESCRIPTION END AS Item_Description,
DB.WO.ORD_QTY,
DB.WO.START_DATE,
DB.WO.DUE_DATE,
DB.WO_RTG.OPERATION,
DB.D_OPERNM.D_OPER_NUM_SEQ,
DB.WC.DESCRIPTION AS WC_Description,
DB.WO.CCN,
DB.WO.MAS_LOC,
DB.D_WKINST.D_WORK_INSTRUCTION,
DB.D_WORTG.NA_OPER,
DB.D_WORTG.D_OPER_GROUP,
DB.GLOVCLB.CONTENT,
DB.D_WOHDR.D_J_MACHINE,
DB.D_WOHDR.D_H_MACHINE,
DB.D_WOHDR.D_STD_ASSEMBLY,
DB.D_WOHDR.D_T_C_A_ASSEMBLY,
DB.D_WOHDR.D_T_C_B_ASSEMBLY,
DB.D_WOHDR.D_B_S_ASSEMBLY
FROM DB.WO_HDR
LEFT JOIN DB.WO
ON DB.WO_HDR.CCN = DB.WO.CCN
AND DB.WO_HDR.MAS_LOC = DB.WO.MAS_LOC
AND DB.WO_HDR.WO_NUM = DB.WO.WO_NUM 
LEFT JOIN DB.D_WO
ON DB.WO.WO_LINE = DB.D_WO.WO_LINE
AND DB.WO.WO_NUM = DB.D_WO.WO_NUM
AND DB.WO.MAS_LOC = DB.D_WO.MAS_LOC
AND DB.WO.CCN = DB.D_WO.CCN
LEFT JOIN DB.WONSD
ON DB.WO.WO_LINE = DB.WONSD.WO_LINE
AND DB.WO.WO_NUM = DB.WONSD.WO_NUM
AND DB.WO.MAS_LOC = DB.WONSD.MAS_LOC
AND DB.WO.CCN = DB.WONSD.CCN
LEFT JOIN DB.ITEM
ON DB.WO.REVISION = DB.ITEM.REVISION
AND DB.WO.ITEM = DB.ITEM.ITEM
LEFT JOIN DB.WO_RTG
ON DB.WO.WO_LINE = DB.WO_RTG.WO_LINE
AND DB.WO.WO_NUM = DB.WO_RTG.WO_NUM
AND DB.WO.MAS_LOC = DB.WO_RTG.MAS_LOC
AND DB.WO.CCN = DB.WO_RTG.CCN
LEFT JOIN DB.D_WORTG
ON DB.WO_RTG.OPERATION = DB.D_WORTG.OPERATION
AND DB.WO_RTG.WO_LINE = DB.D_WORTG.WO_LINE
AND DB.WO_RTG.WO_NUM = DB.D_WORTG.WO_NUM
AND DB.WO_RTG.MAS_LOC = DB.D_WORTG.MAS_LOC
AND DB.WO_RTG.CCN = DB.D_WORTG.CCN
LEFT JOIN DB.WC
ON DB.WO_RTG.WC = DB.WC.WC
AND DB.WO_RTG.CCN = DB.WC.CCN
LEFT JOIN DB.D_OPERNM
ON DB.WO_RTG.OPERATION = DB.D_OPERNM.OPERATION
AND DB.WO_RTG.WO_LINE = DB.D_OPERNM.WO_LINE
AND DB.WO_RTG.WO_NUM = DB.D_OPERNM.WO_NUM
AND DB.WO_RTG.MAS_LOC = DB.D_OPERNM.MAS_LOC
AND DB.WO_RTG.CCN = DB.D_OPERNM.CCN
LEFT JOIN DB.D_WKINST
ON DB.D_WORTG.D_WORK_INSTRUCTION = DB.D_WKINST.D_WORK_INSTRUCTION
LEFT JOIN DB.WOLN_TXT
ON DB.WO.WO_LINE = DB.WOLN_TXT.WO_LINE
AND DB.WO.WO_NUM = DB.WOLN_TXT.WO_NUM
AND DB.WO.MAS_LOC = DB.WOLN_TXT.MAS_LOC
AND DB.WO.CCN = DB.WOLN_TXT.CCN
LEFT JOIN DB.GLOVCLB
ON DB.WOLN_TXT.OBJECT_ID = DB.GLOVCLB.OBJECT_ID
LEFT JOIN DB.D_WOHDR
ON DB.WO.CCN = DB.D_WOHDR.CCN
AND DB.WO.MAS_LOC = DB.D_WOHDR.MAS_LOC
AND DB.WO.WO_NUM = DB.D_WOHDR.WO_NUM
WHERE DB.WO_HDR.CCN=' || varCCN || ';
AND DB.WO_HDR.MAS_LOC=' || varMASLOC || ';
AND TRIM(DB.WO_HDR.WO_NUM)=' || varWO || ';';
END;
Edited by: lirizarry on Nov 6, 2009 4:37 PM