October 5, 2012 at 9:48 am
ronan.healy (10/5/2012)
thanks very much for help will try thatand also will try improve my [post in future
again thanks
No problem. Happy to help. The best thing you can do is to test your ddl and dml so you know it will work. 😀 Let me know if that doesn't work.
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October 9, 2012 at 4:23 am
hi
out of interest is it possible to do it this way
update ACRT set MIDIRB = min(IRBT2.IRBRATING)
from ACRT,IRBT,IRBT2 where ACRT.MIDIRB = IRBT.IRBRATING
and IRBT2.IRBRATING > IRBT.IRBRATING
and if so what do i have to do to get this error out of it
Msg 208, Level 16, State 1, Line 1
Invalid object name 'IRBT2'.
IRBT2 is a table in database
October 9, 2012 at 4:41 am
ronan.healy (10/9/2012)
hiout of interest is it possible to do it this way
update ACRT set MIDIRB = min(IRBT2.IRBRATING)from ACRT,IRBT,IRBT2 where ACRT.MIDIRB = IRBT.IRBRATING
and IRBT2.IRBRATING > IRBT.IRBRATING
and if so what do i have to do to get this error out of it
Msg 208, Level 16, State 1, Line 1
Invalid object name 'IRBT2'.
IRBT2 is a table in database
No - there's an aggregate operator but no GROUP BY clause.
-- test this
SELECT
ACRT.*,
x.MIDIRB
FROM ACRT
INNER JOIN IRBT
ON IRBT.IRBRATING = ACRT.MIDIRB
CROSS APPLY (
SELECT MIDIRB = MIN(IRBT2.IRBRATING)
FROM IRBT2
WHERE IRBT2.IRBRATING > IRBT.IRBRATING
) x
-- if it correctly displays the rows to be updated and the correct value to update to,
-- then convert the SELECT to an UPDATE:
UPDATE ACRT SET MIDIRB = x.MIDIRB
FROM ACRT
INNER JOIN IRBT
ON IRBT.IRBRATING = ACRT.MIDIRB
CROSS APPLY (
SELECT MIDIRB = MIN(IRBT2.IRBRATING)
FROM IRBT2
WHERE IRBT2.IRBRATING > IRBT.IRBRATING
) x
For better assistance in answering your questions, please read this[/url].
Hidden RBAR: Triangular Joins[/url] / The "Numbers" or "Tally" Table: What it is and how it replaces a loop[/url] Jeff Moden[/url]
October 9, 2012 at 4:45 am
thanks for response will try that
October 9, 2012 at 4:46 am
still getting this error
Msg 208, Level 16, State 1, Line 1
Invalid object name 'IRBT2'.
October 9, 2012 at 7:26 am
ronan.healy (10/9/2012)
still getting this errorMsg 208, Level 16, State 1, Line 1
Invalid object name 'IRBT2'.
Is that a table? In your original post you did not mention that table.
And fwiw you should use the newer join syntax instead of the old style joins.
update ACRT set MIDIRB = min(IRBT2.IRBRATING)
from ACRT
join IRBT on ACRT.MIDIRB = IRBT.IRBRATING
join IRBT2 on IRBT2.IRBRATING > IRBT.IRBRATING
This imho is easier to read and is less prone to coding error. With the comma separated list it is very easy to forget a join condition and you end up with a cross join.
_______________________________________________________________
Need help? Help us help you.
Read the article at http://www.sqlservercentral.com/articles/Best+Practices/61537/ for best practices on asking questions.
Need to split a string? Try Jeff Modens splitter http://www.sqlservercentral.com/articles/Tally+Table/72993/.
Cross Tabs and Pivots, Part 1 – Converting Rows to Columns - http://www.sqlservercentral.com/articles/T-SQL/63681/
Cross Tabs and Pivots, Part 2 - Dynamic Cross Tabs - http://www.sqlservercentral.com/articles/Crosstab/65048/
Understanding and Using APPLY (Part 1) - http://www.sqlservercentral.com/articles/APPLY/69953/
Understanding and Using APPLY (Part 2) - http://www.sqlservercentral.com/articles/APPLY/69954/
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