Tagged Questions
5
votes
2answers
229 views
T-SQL Purpose of MAX in this Group By Query
I have run into some pre-existing SQL that I'm having a hard time uderstanding.
SELECT
MAX(I.Symbol) Symbol
, MAX(I.Ticker) CUSIP
, MAX(I.Name) Name
, SUM(H.Quantity) TotalQuantity
, ...
1
vote
2answers
848 views
how to calculate difference of first row and last row fields value in each group
I have table with structure like this:
+-------+------------------+
| Value | Date |
+-------+------------------+
| 10 | 10/10/2010 10:00 |
| 11 | 10/10/2010 10:15 |
| 15 | ...
11
votes
2answers
1k views
Why do wildcards in GROUP BY statements not work?
I am trying to make the following SQL statement work, but I get a syntax error:
SELECT A.*, COUNT(B.foo)
FROM TABLE1 A
LEFT JOIN TABLE2 B ON A.PKey = B.FKey
GROUP BY A.*
Here, A is a wide table ...
