Transact SQL :: Recognizing Month And Proportion In A Date Range
Oct 8, 2015
I need to recognize only one month in a date range e to make a proportion of the quantity. Practically, period 31-08-2015 - 30-09-2015 is 31 days, 1 belonging August and 30 belonging September so 3.2258% of the quantity must belong August and 96.7742% September. The quantity 200, so 193.54 belong September (That's what I need to achieve). Range 01-09-2015 / 30-09-2015 Qty 500, all 500 belong September.
Range 01-07-2015 / 20-08-2015 Qty 2500 0 belong September. A little bit more complicated if I got 25-06-2015 / 16-12-2015. it 30 day for September and with a datediff I can count the days and make a proportion. I can write piece by piece the code but I'd prefer of course to have only one query for this.
create table forum (idd int, byfrom date, byto date, qty int)
insert into forum values
I am trying to query a code where i need to loop a month in a specified date range. Inside the loop I need to return a result of data each month and need to update the table of the returned data. How do I do the update a field inside the loop? Here's my query:
My goal is to select values from the same date range for a month on month view to compare values month over month. I've tried using the date trunc function but I'm not sure what the best way to attack this is. My thoughts are I need to somehow select first day of every month + interval 'x days' (but I don't know the syntax).In other words, I want to see
Select Jan 1- 23rd feb 1-23rd march 1-23rd april 1-23rd ,value from table
I need SQL to determine what the date range for the previous week was, ie Start date 11/11/01 for Last Sunday through 11/17/01 the following Saturday. The results will populate a drop down box for user queries. Thanx.
I am trying to use the custom code in the report but I don't think I am understanding how this is being used.
I have a function to get starting months for a report parameter. The function is below:-
-------------------------------------------------------------- Shared Function GetStartingMonths() as String dim strDefault as string dim CurrentMonth as String Dim SqlString as String
'strDefault = Month(Now) & "/1/" & Year(Now) CurrentMonth = "5/1/2002" Do While CDate(CurrentMonth) <= Now SqlString = SqlString + "Select " & CurrentMonth & " as value, " & MonthName(Month(CurrentMonth)) & " " & Year(CurrentMonth) & " as MonthYear" CurrentMonth = dateadd("m",1,CDate(CurrentMonth))
if Cdate(CurrentMonth) = Now then Exit Do else sqlString = SqlString & " Union " end if
End Function --------------------------------------------------------------- what i am trying to do here, and hopefully produce a sql string that would fill my dataset of dates and their representation.
In the dataset, I had put the following expression =Code.GetStartingMonths()
However, I can't seem to get the parameter to display the dates. shows up as disabled in my report.
Am I doing something wrong here or is there a better way to doing this ?
Additionally, I was wondering whether there is a better SQL code that would achieve the same thing I am doing ?
In SSRS report I have 2 parameters start date and end date, so when somebody is selecting end date more than a month(if today date is 22 then they are selecting aug 23) then it should give error message to user like "Date out of range".
how to write a query to get current date or end of month date if we pass year and month as input
Eg: if today date is 2015-09-29 if we pass year =2015 and month=09 then we have to get 2015-09-29 if we pass year =2015 and month=08 then we have to get 2015-08-31(for previous months we have to get EOMonth date & for current month we have to get current date).
I'm trying to move some logic that I have currently within a program and putting it into SQL instead.
My table has the following 3 fields that are of interest to me: StartDate (DateTime), StopDate(DateTime), Length (int)
Length is calculated based on StopDate - StartDate and is expressed to the nearest minute.
What I want to do is query the Db giving a start date and end date and return all records that fall within that date range. I then want to present that data such that the earliest date is set to the start date criteria, the last to the end date criteria and the length recalculated.
Say for example I query for results between 01/02/2015 07:00:00 and 01/02/2015 19:00:00 and I get the following:
Basically, I have a membership table that lists each member with an effective period, Eff_Period, that indicates a month when a member was active. So, if a member is active from Jan to Mar, there will be three rows with Eff_Periods of 201501, 201502 and 201503.
All well and good.But, a member may not necessarily have continuous months for active membership. They might have only been active for Jan, Feb and Jun. That would still give them three rows, but with noncontinuous Eff_Periods; they'd be 201501, 201502 and 201506.There is also a table that logs member activity. It has an Activity_Date that holds the date of the activity - betcha didn't see that comin'. What I'm trying to do is determine if an activity took place during a period when the member was active.
My original thought was to count how many rows a member has in the Membership table and compare that number to the number of months between the MIN(Eff_Period) and the MAX(Eff_Period). If the numbers didn't matchup, then I knew that the member had a disconnect somewhere; he became inactive, then active again. But, then I thought of the scenario I detailed above and realized that the counts could match, but still have a discontinuity.So, is there a nifty little SQL shortcut that could determine if a target month is contained within a continuous or discontinuous list of months?
I have a situation where an agent has number of activities for a certain date range. If an agent has multiple activities within certain date range, I would like BALANCE BEFORE from the first activity and BALANCE AFTER from the last activity. Here is my current SQL query that returns the following data:
DECLARE @BeginDate Datetime DECLARE @EndDate Datetime Set @BeginDate = '05-1-2015' Set @EndDate = '05-31-2015' SELECT a.AgentName, R.BALANCEBEFORE,
AGENTNAME BALANCE BEFORE BALANCE AFTER DATE DOUGLAS 9738.75 9782.75 2015-05-11 DOUGLAS 9782.75 9804.75 2015-05-12 DOUGLAS 9804.75 9837.75 2015-05-13
In the sample data above, ideally I would like my query to return data as follow:
AGENTNAME BALANCE BEFORE BALANCE AFTER DOUGLAS 9738.75 (from first activity) 9837.75 (from last activity)
Not sure how I can write sql query to accomplish this.
This one is making my head hurt! Trying to figure out how to query for records between date range. The records have a start_date and an end_date field. The end_date field maybe null.
For example, say you wanted to see the records of everyone checked into a hotel during a given date range. You need to account for the people that checked in before you @start_date parameter and may check out after your @end_date parameter.
fyi- As for the null end_date field, think of this as they have checked in and not sure when they will checkout yet.
Now, I've to get active data for a particular date range. Let me explain the active data definition as below:
StartDate : 01-Jul-2015 EndDate : 31-Dec-2015
It should return all the data which was active for that date range even if it was only for one day.If no data found for that date range, check the last record before start date and and if its active then it should be returned else not.
I though of creating a function and pass primary key with date range and return the final status but that doesn't seems like an optimized query.
I have the following requirement I need to extract all records for min or max date between the 1 and 10th of every month, the following query works but I find some dates that are not in the range specified.
Select [EventType],ItemName,FORMAT([TimeLastModified],'MM')asFromMonthValue, FORMAT([TimeLastModified],'MM')asToMonthValue, FORMAT([TimeLastModified],'MMM')asFromMonthLabel, FORMAT([TimeLastModified],'MMM')asToMonthLabel, min([TimeLastModified])asMinDate,max([TimeLastModified])asMaxDate,ModifiedBy,Casewhen[EventLog].EventType=1 Then 'Item Added'
I have a query for which in the where clause i use where Year(openDate) = Year(GETDATE()) and Month(OpenDate) = Month(GETDATE())-1 which would give me the data i needed for this year last month. However if i run this query on Jan 2015 or Jan 2016, this query would fail.
how to modify my where clause so that it runs regardless of even if its Jan ?
I have a table of errors with a DateTime field for when the error occurred. I want to query the table for a given date range omitting the time portion. What is the most efficient way to perform this query?
I tried to ask a similar question yesterday and got shot down, so I'll try again in a different way. I have been looking online at the gaps and islands approach, and it seems to always be referencing a singular field, so i can't find anything which is clear to get my head around it.In the context of a hotel (people checking in and out) I would like to identify how long someone has been staying at the hotel (The Island?) regardless if they checked out and back in the following day.
Data example: DECLARE @LengthOfStay TABLE ( PersonVARCHAR(8) NOT NULL, CheckInDATE NOT NULL, CheckOutDATE NULL
My scenario is: a person has many events, all based on a date. I need to aggregate the person to show min and max dates for a period, the period being defined as ending when there is not an event following the next date.
I have a column which stores a set of dates. I want to tell how many days left of a date till it’s month end. It should be noted that month ends are taken from the date series, not a calendar month end.
I am working with a SQL Server database that was set up to store the year, month, and day in separate columns, rather than use a single column for the date. I plan to change this so that we store dates and times using the datetime data type. Until then, for now, I need to write transact-SQL select statements to concatenate the year, month and day to create a date that can be displayed in the results window in the format yyyy/mm/dd.
I can't seem to find any built-in function in SQL Server that will let me do this. Of course, using Excel or Access, I can use the DATE() function to reconstruct the date into yyyy/mm/dd. Is there a way to reconstruct the date into yyyy/mm/dd in SQL Server?
I have 2 tables, one is table A which stores Resources Assign to work for a certain period. The structure is as below
Name StartDate EndDate Tan 2015-04-01 08:30:00.000 2015-04-01 16:30:00.000 Max 2015-04-01 08:30:00.000 2015-04-01 16:30:00.000 Alan 2015-04-01 16:30:00.000 2015-04-02 00:30:00.000
The table B stores the item process time. The structure is as below
Item ProcessStartDate ProcessEndDate V 2015-04-01 09:30:10.000 2015-04-01 09:34:45.000 Q 2015-04-01 10:39:01.000 2015-04-01 10:41:11.000 W 2015-04-01 11:44:00.000 2015-04-01 11:46:25.000 A 2015-04-01 16:40:10.000 2015-04-01 16:42:45.000 B 2015-04-01 16:43:01.000 2015-04-01 16:45:11.000 C 2015-04-01 16:47:00.000 2015-04-01 16:49:25.000
I need to select the item which process in 2015-04-01 16:40:00 and 2015-04-01 17:30:00. Beside that I need to know how many resource is assigned to process the item in that period of time. I only has the start date is 2015-04-01 16:40:00 and end date is 2015-04-01 17:30:00. How I can select the data from both tables. There is no need for JOIN, just seperate selections.
Another item process time is in 2015-04-01 10:00:00 and 2015-04-04 11:50:59.
The result expected is
Name StartDate EndDate Alan 2015-04-01 16:30:00.000 2015-04-02 00:30:00.000
Item ProcessStartDate ProcessEndDate A 2015-04-01 16:30:10.000 2015-04-01 16:32:45.000 B 2015-04-01 16:33:01.000 2015-04-01 16:35:11.000 C 2015-04-01 16:37:00.000 2015-04-02 16:39:25.000
Scenario 2 expected result
Name StartDate EndDate Tan 2015-04-01 08:30:00.000 2015-04-01 16:30:00.000 Max 2015-04-01 08:30:00.000 2015-04-01 16:30:00.000
I've written sql code which takes a date and finds the Last Day of the Month one year ago. For example, it takes the date '2015-04-17' and returns the date '2014-04-30'. The code works fine in a query. Now I'm trying to turn this into a function. However, when I try to create the function I get the error:
Operand type clash: date is incompatible with int
Why is this error being returned?
Here is my function:
CREATE FUNCTION dbo.zEOM_LY_D(@Input Date) RETURNS date AS BEGIN; DECLARE @Result date; SET @Result = convert(DATE, DATEADD(s,-1,DATEADD(mm, DATEDIFF(m,0,dateadd(m, -11, @Input)+1),0)),101) RETURN @Result; END;
I would like to update the flag of the promotion ID should the promotion ID date range overlap with Promotion ID(All) Date Range. The general logic is as below.
Update TableName SET PromotionID Flag = 1 AND Reason = 'Overlap with row ID(Overlap row ID number)' Where EACH ROW(Except with Promotion ID ALL) Date Range Overlap with ROW(with promotion ID ALL) Date range