My stored proc has the following select statement:
select Name,Holiday from tblNames where ID = #ID and DATENAME(YEAR, GETDATE()) = #Year
When executing the statement I have an error
"Error converting data type int to nvarchar."
How can I convert #Year parameter to a correct year?
The return type of the datename function is nvarchar, you want the datepart function that returns an integer value, so change to DATEPART(YEAR, GETDATE()) instead.
datename is what you would use to get the name of a month or weekday.
Or you could use the year(getdate()) function instead as Gordon L mentioned in a comment.
I'd recommend to switch back from fixing specific error message to the original question. You have a date in your table and need to filter it by range. So just provide to server the range bounds. This will also avoid any conversions of stored data. To avoid tail time issue you may append '23:59:59.997' to the upper bound of range or (my advice) provide next date and compare by < instead of <=
set #startdate = ...
set #enddate = dateadd(dd, 1, ...)
select *
from mytable
where t.date >= #startdate and t.date < #enddate
Complicated conversions can make it impossible to use appropriate index. If you can convert your arguments and provide prepared values to server - strive to do so.
Related
Write a single query to search between two dates and when To date is not available then it should search greater then first date.
For example: search between two dates, when both from and to dates are available
11-10-2015 to 11-10-2017
My query should also return result when To date is not available
For example: I want to write single query without any if and else
This code works and it is a single statement, as requested.
SELECT * from MyTable WHERE recordingdate BETWEEN COALESCE(#startdate,CAST('01/01/1753 00:00:00.000' AS DATETIME)) AND COALESCE(#enddate,CAST('12/31/9999 23:59:59.997' AS DATETIME))
If the start date is NULL, COALESCE will return the minimum date value, as defined by SQL Server. Otherwise, it returns the start date value sent in.
If the end date is NULL, COALESCE will return the maximum date value, as defined by SQL Server. Otherwise, it returns the end date sent in.
Feel free to turn the COALESCE statements for MIN and MAX possible dates into functions, as SQL Server does not have built-in functions for minimum and maximum possible dates.
Writing your code this way allows you to always execute a BETWEEN.
Try Thie below Logic
DECLARE #FromDt DATE='01/01/2017',#ToDate DATE = NULL
SELECT
*
FROM YourTable
WHERE FromDate > #FromDate
AND
(
#ToDate IS NULL
OR
(
#ToDate IS NOT NULL
AND
ToDate > #ToDate
)
)
declare #dt_from date = '20151011',
#dt_to date = '20171011' -- null
select *
from dbo.your_table
where date_field >= #dt_from and data <= isnull(#dt_to, '99990101');
I want to get date from yyyy-mm-dd to yyyy-mm-dd in SQL.
Example: I have two parameter #startdate : 2015-12-28 and #enddate : 2016-01-02, and database in SQLServer, datatype is varchar(10)
DATE_ORDER
28-12-2015
30-12-1996
29-12-2016
30-12-1997
24-12-2015
27-12-1993
03-01-2016
01-01-1992
02-01-2016
etc...
Ok,now I want to get data from #startdate : 2015-12-28 and #enddate : 2016-01-02. I use SELECT * FROM TABLE_X WHERE DATE_ORDER >= #startdate AND DATE_ORDER <= #enddate . But the results are not what I expected. Here are the results I want
28-12-2015
30-12-1996
29-12-2016
30-12-1997
01-01-1992
02-01-2016
I think to solve this problem, I need to do two things :
First, get date range from #startdate to #enddate , in here 28/12/2015, 29/12/2015, 30/12/2015, 31/12/2015, 01/01/2016, 02/01/2016.
The second: get the date in database same in range 28/12, 29/12, 30/12, 31/12, 01/01, 02/01, ignoring the year.
Can you give me some ideas about this ?
Your actual format is "105-italian" find details here.
You can convert your existing VARCHAR(10)-values with this line to real datetime
SELECT CONVERT(DATETIME,YourColumn,105)
Next thing to know is, that you should not use BETWEEN but rather >=StartDate AND < NakedDateOfTheFollowingDay to check date ranges
So to solve your need Get date-range from 2015-12-28 to 2016-01-02 you might do something like this:
DECLARE #Start DATETIME={d'2015-12-28'};
DECLARE #End DATETIME={d'2016-01-02'};
SELECT *
FROM YourTable
WHERE CONVERT(DATETIME,YourDateColumn,105)>=#Start AND CONVERT(DATETIME,YourDateColumn,105)<#End+1
Attention Be aware, that the conversion lets your expression be not sargable. No index will be used.
Better was to store your date as correctly typed data to avoid conversions...
Try this query
SET DATEFIRST 1
DECLARE #wk int SET #wk = 2
DECLARE #yr int SET #yr = 2011
--define start and end limits
DECLARE #todate datetime, #fromdate datetime
SELECT #fromdate = dateadd (week, #wk, dateadd (YEAR, #yr-1900, 0)) - 4 -
datepart(dw, dateadd (week, #wk, dateadd (YEAR, #yr-1900, 0)) - 4) + 1
SELECT #todate = #fromdate + 6
;WITH DateSequence( Date ) AS
(
SELECT #fromdate AS Date
UNION ALL
SELECT dateadd(DAY, 1, Date)
FROM DateSequence
WHERE Date < #todate
)
--select result
SELECT * FROM DateSequence OPTION (MaxRecursion 1000)
So, after the 2nd or 3rd edit, it slowly becomes clear, what you want (i hope).
So you REALLY WANT to get the dates with the year beeing ignored.
As someone pointed out already, date-values are stored internally not as string, but as internal datatype date (whatever that is in memory, i don't know).
If you want to compare DATES, you cannot do that with ignorance of any part. If you want to, you have to build a NEW date value of day and month of given row and a hard coded year (2000 or 1 or whatever) for EVERY row.
SELECT * FROM TABLE_X WHERE convert(date,'2000' + substring(convert(char(8),convert(datetime, 'DATE_ORDER', 105),112),5,4),112) >= #startdate AND convert(date,'2000' + substring(convert(char(8),convert(datetime, 'DATE_ORDER', 105),112),5,4),112) <= #enddate
If your startdate and enddate go OVER sylvester, you have to do 2 queries, on from startdate to 1231, one from 0101 to enddate.
I am using the following way to compare two dates:
if CONVERT(varchar(20), #ScheduleDate, 101) >= CONVERT(varchar(20), #CurrentDateTime, 101)
This is working fine for the current year, but when the comes in yearly like one date is 12/31/2012 and 1/1/2013 then its not working.
Please help me how can I resolve this.
why do you comparing strings?
you can compare dates
if #ScheduleDate >= #CurrentDateTime
but if your date contains time, I usually do
if convert(nvarchar(8), #ScheduleDate, 112) >= convert(nvarchar(8), #CurrentDateTime, 112)
112 datetime format is YYYYMMDD so it's good for compare dates
You have to remember that string comparison is from left to right, so "1/...." is smaller than "12/...".
You need to use DATETIME comparisons, not string comparison.
Something like
DECLARE #ScheduleDate DATETIME = '1/1/2013',
#CurrentDateTime DATETIME = '12/31/2012'
IF (#ScheduleDate >= #CurrentDateTime)
BEGIN
SELECT #ScheduleDate, #CurrentDateTime
END
DECLARE #ScheduleDateString VARCHAR(20) = '1/1/2013',
#CurrentDateTimeString VARCHAR(20) = '12/31/2012'
IF (CONVERT(DATETIME,#ScheduleDateString,101)>=CONVERT(DATETIME,#CurrentDateTimeString,101))
BEGIN
SELECT CONVERT(DATETIME,#ScheduleDateString,101),CONVERT(DATETIME,#CurrentDateTimeString,101)
END
SQL Fiddle DEMO
Note that if the variables are already datetimes, you do not need to convert them.
Assuming that both variables are currently DateTime variables, can't you just compare them without converting to strings?
declare #ScheduleDate DATETIME, #CurrentDateTime DATETIME
SET #ScheduleDate = '1 Jan 2013'
SET #CurrentDateTime = GetDate()
IF (#ScheduleDate >= #CurrentDateTime)
BEGIN
SELECT 'Do Something'
END
ELSE
BEGIN
SELECT 'Do Something Else'
END
when you use CONVERT(nvarchar(8), #ScheduleDate, 112) function it's return string instead of date.
so,
Use "112" DateFormat in Sql Server it's return string in "YMD" format without any sepration.
compare that string in your query and get desire output.
Such as "if CONVERT(nvarchar(8), #ScheduleDate, 112) >= CONVERT(nvarchar(8), #CurrentDateTime, 112)"
I would not use CONVERT to compare formatted strings. It is slow (well, more like microseconds, but still)
I use a UDF for SQL prior to version 2008
CREATE FUNCTION [dbo].[DateOnly] (#Date DateTime)
RETURNS Datetime AS
BEGIN
Return cast (floor (cast (#Date as float)) as DateTime)
END
and for versions >=2008 this approach
select convert(#MyDateTime as DATE)
Of course, you can compare datetime values directly, but to know whether two datetime values are on the same date (ignoring the time component), the above versions have proven to be effectivy.
Date : From and To with following format
from_Date# = #dateformat("#form.from#", "mm/dd/yyyy")
to_Date# = #dateformat("#now()#" + 1, "mm/dd/yyyy")
In SQL Statement
WHERE a.DateCreated >= CAST ('#from_date#' AS DATE) and a.DateCreated <= CAST('#to_date#' AS DATE)
This is working fine without any cast of original date time column
I give two different date as a input. i want to find, what are date between two date..
For eg:
1'st Input is : 2011-02-20
2'nd input is : 2011-02-25
Output is:
2011-02-20
2011-02-21
2011-02-22
2011-02-23
2011-02-24
2011-02-25
Is there any function to find the between date...
otherwise how to find ?
You can use a CTE to achieve this.
DECLARE #StartDate DATETIME
DECLARE #EndDate DATETIME
SET #StartDate = '2011-02-20'
SET #EndDate = '2011-02-25'
;WITH GetDates AS
(
SELECT 1 as counter, #StartDate AS Date
UNION ALL
SELECT counter + 1, DATEADD( day, counter, #StartDate )
FROM GetDates
WHERE DATEADD( day, counter, #StartDate ) <= #EndDate
)
SELECT Date FROM GetDates
See:
Why should I consider using an auxiliary calendar table?
A calendar table can make it much
easier to develop solutions around any
business model which involves dates.
Last I checked, this encompasses
pretty much any business model you can
think of, to some degree. Constant
problems that end up requiring
verbose, complicated and inefficient
methods include the following
questions: How many business days
between x and y? ...
SELECT Date = #StartDate + number
FROM master..spt_values
WHERE type = 'P'
AND number BETWEEN 0 AND DATEDIFF(day, #StartDate, #EndDate)
Note: This solution is not applicable when the distance between the two dates is more than 2047 days.
A SQL Server application we use (accpac) represents dates as an 8 digit decimal in ISO format (example: today's date is 20100802)
I need to add one month to this. I've found a way to do it, but there must be a better way.
The steps of my solution are:
declare #accpacDate as decimal
set #accpacDate = 20100101
declare #date1 as date
declare #date2 as date
set #date1=cast(CAST(#accpacDate as varchar(8)) as datetime) /*get the starting value as a date */
set #date2=DATEADD(month,1,#date1)
select CONVERT(varchar(8),#date2,112) as aVarchar
select convert(decimal,CONVERT(varchar(8),#date2,112)) as aDecimal
SELECT CONVERT(VARCHAR(8),DATEADD(MONTH,1,CONVERT(VARCHAR(8),20100802,112)),112)
It seems about right what you are doing.
String and Date manipulation is pretty core in SQL, no fancy wrappers for auto-converting and manipulating date formats (accpac, memories, shiver).
You could write that into a user function, to add days to a accpac date, and return the result:
create function accpacadd
( #accpacdate decimal,
#days int)
RETURNS decimal
AS BEGIN
declare #date1 as datetime
set #date1=cast(CAST(#accpacDate as varchar(8)) as datetime) /*get the starting value as a date */
set #date1=DATEADD(day, #days, #date1)
return convert(decimal, CONVERT(varchar(8), #date1, 112))
END
So then you can just call it with min code:
select dbo.accpacadd(20100102, 5)
select dbo.accpacadd(20100102, -5)
Gives 20100107 and 20091228 respectively