I am moving a MS Access database to MySQL and I am running into a problem with a few of the queries.
I am about 80% finished with transferring the queries, but this particular one is giving me trouble.
TRANSFORM Nz(Max(IIf([charge_description_code] In ('AHS','AHW','AHL','RES','SAT'),"Y","N")), "N") AS Data SELECT shipment_details.tracking_number, shipment_details.invoice_number FROM shipment_details WHERE tracking_number is not null and charge_category_detail_code not in ('RADJ') GROUP BY shipment_details.tracking_number, shipment_details.invoice_number PIVOT shipment_details.charge_description_code In (SAT,AHW,AHS,AHL,RES);
I expect the results to be displayed like:
tracking_number invoice_number SAT AHW AHS AHL RES 1Z2XXXXXXXXX625816 1329102975 N N N N N 1Z3YYYYYYYYY610514 1329109647 N N Y N N 1Z3ZZZZZZZZZ142605 1329109647 N N N Y Y
Advertisement
Answer
Consider conditional aggregation which would still work in MS Access (replace IF
with IIF
below). Usually, Access’ crosstab query is for pivoted columns more than a handful unlike your current version of five. Also, your NZ
is redundant as NULL
resolves to N
per the conditional logic.
SELECT s.tracking_number, s.invoice_number, MAX(IF(s.[charge_description_code] = 'SAT', 'Y', 'N')) AS 'SAT', MAX(IF(s.[charge_description_code] = 'AHW', 'Y', 'N')) AS 'AHW', MAX(IF(s.[charge_description_code] = 'AHL', 'Y', 'N')) AS 'AHL', MAX(IF(s.[charge_description_code] = 'AHS', 'Y', 'N')) AS 'AHS', MAX(IF(s.[charge_description_code] = 'RES', 'Y', 'N')) AS 'SAT' FROM shipment_details s WHERE s.tracking_number IS NOT NULL AND s.charge_category_detail_code NOT IN ('RADJ') AND s.charge_description_code IN ('AHS','AHW','AHL','RES','SAT') GROUP BY s.tracking_number, s.invoice_number