Why would the last of the following two SQL statements run ten times
slower than the other?


SELECT *
FROM BLORDLP A
JOIN BLORDDP B
ON ODORD# = OLORD#
AND ODLINE = OLLINE
WHERE OLSTTS <> ODSTTS


SELECT ODORD#, ODLINE, ODSTTS, OLSTTS
FROM BLORDLP A
JOIN BLORDDP B
ON ODORD# = OLORD#
AND ODLINE = OLLINE
WHERE OLSTTS <> ODSTTS

The only difference being the first selects all fields and runs
immediately, the second only selects 4 fields and takes forever to
run.

thanks,

rick

This thread ...

Follow-Ups:

Follow On AppleNews
Return to Archive home page | Return to MIDRANGE.COM home page

This mailing list archive is Copyright 1997-2019 by midrange.com and David Gibbs as a compilation work. Use of the archive is restricted to research of a business or technical nature. Any other uses are prohibited. Full details are available on our policy page. If you have questions about this, please contact [javascript protected email address].