Hourly Data

Lawrence 007

Hi,

I am trying to get total transactions for Cashiers on an hourly basis from my SQL Database. All the data is in the DB, but I have never ran a query that Counts transaction numbers per hour. I can get the total transactions per Cashier for the day, but not per hour.

Does someone have an answer for me

Thanks

Lawrence

Chris Howarth

Assuming that you have a DATETIME column that indicates both the date and time that the row was inserted then you can use the example below as a template. The query will return a rowcount for each hour of the current day in which a row was inserted.

Chris

 

SELECT DATEPART(HOUR, MyTable.MyDateField) AS Hour, COUNT(*) AS [RowCount]

FROM MyTable

WHERE MyTable.MyDateField >= CAST(CONVERT(VARCHAR(11), GETDATE(), 106) AS DATETIME)

GROUP BY DATEPART(HOUR, MyTable.MyDateField)

 

Lawrence 007

Thanks Chris,

I modified as needed and it worked perfect.

Lawrence 007

Chris,

I was trying this query on a Weekly basis, but that did not work. How do I get it to work over a long period of time

Thanks Chris

Chris Howarth

Would you expect to see the results broken down by day, or would you want to see the total number of rows for the 3 o'clock to 4 o'clock period (for example) for all days represented by a single row

e.g.

Either:

Day 1, Hour 3, 564

Day 2, Hour 3, 989

Day 3, Hour 3, 43

etc...

or a single row for hour 3 for all three days:

Hour 3, 1596

 

Chris

Lawrence 007

Chris,

What I currently have is:

Cashier A: Hour :9 Total Transactions: 32

10 50

11 63 And so on. It would be nice if I could do this as follows:

Day 1: Hour :9 Total Transactions: 32

10 50

11 63

Day 2: Hour :9 Total Transactions: 32

10 50

11 63

Only if it is possible. I am using this in a crystal report, so I can group inside the report, but don't know how to get the data over a longer period than 1 day.

Thanks for the help Chris.

Chris Howarth

You can simply extend the GROUP BY and SELECT lists to include the year, month and day - see the example below. @MyDate is the earliest date on which you wish to report.

Chris

DECLARE @MyDate DATETIME

SET @MyDate = GETDATE()

SELECT DATEPART(YEAR, MyTable.MyDateField) AS [Year],

DATEPART(MONTH, MyTable.MyDateField) AS [Month],

DATEPART(DAY, MyTable.MyDateField) AS [Day],

DATEPART(HOUR, MyTable.MyDateField) AS [Hour],

COUNT(*) AS [RowCount]

FROM MyTable

WHERE MyTable.MyDateField >= CAST(CONVERT(VARCHAR(11), @MyDate, 106) AS DATETIME)

GROUP BY DATEPART(YEAR, MyTable.MyDateField),

DATEPART(MONTH, MyTable.MyDateField),

DATEPART(DAY, MyTable.MyDateField),

DATEPART(HOUR, MyTable.MyDateField)

ORDER BY 1, 2, 3, 4

Lawrence 007

This is great! Thanks Chris!! This was very helpfull!