I hope this is solvable.
Basically, I'm working with an SQL Server database table and in this table there is a field called matchdate. The format of the field is nchar(50).
There are over 2000 records in my table and the dates in the matchdate field are all in UK format, for example, "29/04/2014".
I am trying to query the table so I can pull out records between two UK dates. To do this I am using the following query:
SET DATEFORMAT DMY;
SELECT * from mytable
WHERE CAST(matchdate as datetime) BETWEEN '" & startdate & "' and '" & enddate & "'
order by cast([matchdate] as datetime) asc"
As you can probably tell this type of query is certainly not my strength. If the UK startdate value is "01/03/2014" and the UK enddate value is "23/04/2014" I get the following error:
Microsoft OLE DB Provider for SQL Server error '80040e07'
Conversion failed when converting date and/or time from character string.
I'm guessing this is because I am using two UK dates formats? How do I query the UK formatted "matchdate" field table using UK "start" and UK "end" formatted dates and get around this error?
PS: Unfortunately, I do not have access to the database table.
Try using the CONVERT function for the date so that you can specify the date standard
e.g. UK is 103
-- test
SELECT CONVERT(DATETIME, '10 January 2014', 103)
SELECT * from mytable WHERE CONVERT(DATETIME, matchdate, 103) BETWEEN '" & startdate & "' and '" & enddate & "' order by CONVERT(DATETIME, matchdate, 103) asc"
Related
I have a SQL statement to display data between two dates. I almost got it but there's a problem.
If I input March 1,2012 to March 7, 2012.. it should show data with dates between the two.. but it also show all of the dates under March 2012.. but whenever I input March 10, 2012 to March 30, 2012 the SQL works perfectly.. any help will be appreciated. thanks
SELECT
agentname, noofcalls, qualified, booking, resched,
actualbooking, sales, remarks,
concat(month,' ',day,',',year) as 'date'
FROM
tblagents
WHERE
(month between '" & cbosmonth.Text & "' AND '" & cboemonth.Text & "')
AND (day between '" & cbosday.Text & "' AND '" & cboeday.Text & "')
AND (year between '" & cbosyear.Text & "' AND '" & cboeyear.Text & "')"
you are doing string comparisons in each of your 'between'. Every number starting with a 1, a 2 or a 3, regardless of what follows it, i.e. 21, or 26, or 31, they are all lower than 7 if you look at them as strings. 1 to 30 works because you're only leaving 31 behind, and 30 < 31 as a String as well.
Do the concatenation first and then the between:
WHERE concat(month,' ',day,',',year)
BETWEEN concat(cbosmonth.Text,' ', cbosday.Text,' ',cbosyear.Text)
AND concat(cboemonth.Text,' ', cboeday.Text,' ',cboeyear.Text)
(check out for correct syntax, I'm just copy pasting from your question, not tried it)
BTW, unless you have a reason to, you probably should be storing the entire date in a single column with the right data time (datetime, timestamp, ...) and not three separated columns.
That is the incorrect way to store a date in database.
Change the date column to datatype date.
You could then do:
SELECT *
FROM table
WHERE bookingDate between to_date ('2012/03/01', 'yyyy/mm/dd')
AND to_date ('2012/03/07', 'yyyy/mm/dd');
This approach is wrong.
In order for a date to be between two interval dates it does not have to have a day number between the two dates, e.g. (pseudocode)
date = May-25-2012; startDate = March-15-2012, endDate = June-01-2012
date is clearly between startDate and endDate, yet
day(date) is 25, which is not between day(startDate) = 15 and day(endDate) = 1
more, as 15 is larger than 1, there are no numbers between them, so that condition will always be false
Similar example can be made for the month part of the date (e.g. date = May-25-2012; startDate = September-15-2010, endDate = Match-01-2015)
You need to take the values for day, month, year, and construct a Date either in the application or on the server and use that to compare the values against.
To make a date from text fields in VB
Dim startDate = new DateTime(
Convert.ToInt32(cbosyear.Text),
Convert.ToInt32(cbosmonth.Text),
Convert.ToInt32(cbosday.Text))
Note that this will fail if the user enters, e.g. "some text" for the year value. You'll need to add some data validations to achieve that.
To make a datetime from parts in SQL Server, take a look here, there are quite a few techniques explained.
Also, you should always avoid just pasting values into the sql string, that's asking for sql injection problems. You should do something like this:
Dim command = new SqlCommand()
command.CommandText = "SELECT .... FROM tblagents where DATEFROMPARTS(year, month, day) between #startDate AND #endDate"
command.Parameters.AddWithValue("#startDate", startDate)
command.Parameters.AddWithValue("#endDate", endDate)
Well, I'm using an MS Access database and I have a field Date. In the property of this field I have specified that the format should be 'dd/mm/yyyy'. However, when I use queries on the field, it searches with the date format 'mm/dd/yyyy'. I have no idea why it's doing this because I thought the queries adapt to the field properties and I haven't been able to find a solution online. My location and timezone are set in Europe. This is the query that I used:
SELECT Count(*) AS Amount
FROM Plays
WHERE PersonID = 1001 AND RestaurantID = 101358 and Date = #7/6/2016#
So, in this query it doesn't search the 7th of June 2016 but the 6th of July 2016. Both PersonID and RestaurantID are set as numbers; Date is set as Date/Time. How do I fix it so the query searches as the date format 'dd/mm/yyyy' as well without having to use any sql functions everytime?
If your query is written in VBA, you MUST write the dates using m/d/y. That's it.
I tend to construct my SQL statements using Format(expr, "\#mm\/dd\/yyyy\#"). E.g:
const kUsDtFmt = "\#mm\/dd\/yyyy\#"
sSql = "SELECT * FROM myTable WHERE dtUpdated = " & Format(Date(), kUsDtFmt )
Note: "\" is the escape key in format strings, meaning that the next character is taken as is.
If you simply wish to filter on today's date, do this:
SELECT Count(*) AS Amount
FROM Plays
WHERE PersonID = 1001 AND RestaurantID = 101358 and [Date] = Date()
For other dates, use DateSerial which frees you from format considerations:
SELECT Count(*) AS Amount
FROM Plays
WHERE PersonID = 1001 AND RestaurantID = 101358 and [Date] = DateSerial(2016, 6, 7)
If you concatenate string expressions, use the ISO sequence:
Dim SomeDate As Date
SomeDate = DateSerial(2016, 6, 7) ' or any other date value.
DateString = Format(SomeDate, "yyyy\/mm\/dd")
SQL = "SELECT Count(*) AS Amount " & _
"FROM Plays " & _
"WHERE PersonID = 1001 AND RestaurantID = 101358 and [Date] = #" & DateString & "#"
Note please, that Date is a reserved word, thus may have to be bracketed as shown.
Welp, I eventually found a solution to the problem:
"SELECT COUNT(*) as Amount FROM Plays WHERE PersonID = " & Me.txtPersonID &_
" AND RestaurantID = " & Me.txtRestaurantID & " AND Date = #" & Month(Me.txtDate)_
& "/" & Day(Me.txtDate) & "/" & Year(Me.txtDate) & "#"
I expected some of your solutions to work but for some reason(s) they didn't. Anyhow, now the correct date is searched and the correct value is returned. Thanks for the time you spent helping me.
Use FormatDateTime with vbShortdate to make sure your date is formatted the way the system expects it to be and not the way humans like to see it.
I am building a calendar in asp that is database populated using aspwebcalender. Problem is my database date format is mm-dd-yyyy (startdate field) and aspwebcalender is looking for mm/dd/yyyy (DateToUse value). I am trying to convert the field on the fly in my WHERE statement. I have tried the REPLACE, CONVERT and even parsing and rebuilding the field. Im sure there is some simple solution.
This is what I have so far for my field [startdate]:
SELECT * FROM customers
WHERE (SELECT(CONVERT(VARCHAR(10), startdate, 101)
AS [MM/DD/YYYY])) = #" & DateToUse & "# ORDER BY StartTime"
I know its a mess.
I have also tried:
SELECT * FROM customers WHERE
(Left((startdate),2)) + '/' + MID(startdate,4,2)+ '/' + right(startdate,4)) = " &
DateToUse & " ORDER BY StartTime"
and also:
SELECT * FROM customers WHERE
(REPLACE(startdate,-,/)) = #" & DateToUse & "# ORDER BY StartTime"
Thanks in advance
If startdate is a date Type and oracle database.
then use this one :
select to_char(StartTime, 'mm/dd/yyyy'), "OTHER COLUMNS to select" FROM customers WHERE
to_char(StartTime, 'mm/dd/yyyy ') = DateToUse ORDER BY StartTime desc;
I have a SQL statement to display data between two dates. I almost got it but there's a problem.
If I input March 1,2012 to March 7, 2012.. it should show data with dates between the two.. but it also show all of the dates under March 2012.. but whenever I input March 10, 2012 to March 30, 2012 the SQL works perfectly.. any help will be appreciated. thanks
SELECT
agentname, noofcalls, qualified, booking, resched,
actualbooking, sales, remarks,
concat(month,' ',day,',',year) as 'date'
FROM
tblagents
WHERE
(month between '" & cbosmonth.Text & "' AND '" & cboemonth.Text & "')
AND (day between '" & cbosday.Text & "' AND '" & cboeday.Text & "')
AND (year between '" & cbosyear.Text & "' AND '" & cboeyear.Text & "')"
you are doing string comparisons in each of your 'between'. Every number starting with a 1, a 2 or a 3, regardless of what follows it, i.e. 21, or 26, or 31, they are all lower than 7 if you look at them as strings. 1 to 30 works because you're only leaving 31 behind, and 30 < 31 as a String as well.
Do the concatenation first and then the between:
WHERE concat(month,' ',day,',',year)
BETWEEN concat(cbosmonth.Text,' ', cbosday.Text,' ',cbosyear.Text)
AND concat(cboemonth.Text,' ', cboeday.Text,' ',cboeyear.Text)
(check out for correct syntax, I'm just copy pasting from your question, not tried it)
BTW, unless you have a reason to, you probably should be storing the entire date in a single column with the right data time (datetime, timestamp, ...) and not three separated columns.
That is the incorrect way to store a date in database.
Change the date column to datatype date.
You could then do:
SELECT *
FROM table
WHERE bookingDate between to_date ('2012/03/01', 'yyyy/mm/dd')
AND to_date ('2012/03/07', 'yyyy/mm/dd');
This approach is wrong.
In order for a date to be between two interval dates it does not have to have a day number between the two dates, e.g. (pseudocode)
date = May-25-2012; startDate = March-15-2012, endDate = June-01-2012
date is clearly between startDate and endDate, yet
day(date) is 25, which is not between day(startDate) = 15 and day(endDate) = 1
more, as 15 is larger than 1, there are no numbers between them, so that condition will always be false
Similar example can be made for the month part of the date (e.g. date = May-25-2012; startDate = September-15-2010, endDate = Match-01-2015)
You need to take the values for day, month, year, and construct a Date either in the application or on the server and use that to compare the values against.
To make a date from text fields in VB
Dim startDate = new DateTime(
Convert.ToInt32(cbosyear.Text),
Convert.ToInt32(cbosmonth.Text),
Convert.ToInt32(cbosday.Text))
Note that this will fail if the user enters, e.g. "some text" for the year value. You'll need to add some data validations to achieve that.
To make a datetime from parts in SQL Server, take a look here, there are quite a few techniques explained.
Also, you should always avoid just pasting values into the sql string, that's asking for sql injection problems. You should do something like this:
Dim command = new SqlCommand()
command.CommandText = "SELECT .... FROM tblagents where DATEFROMPARTS(year, month, day) between #startDate AND #endDate"
command.Parameters.AddWithValue("#startDate", startDate)
command.Parameters.AddWithValue("#endDate", endDate)
Please help me how to insert LIKE % in date between. Example is:
SELECT *
FROM table
WHERE Date BETWEEN '" & startDate & "%'" AND '" & endDate & "%'"
So in this code where i should put LIKE so that data will appear?
example if i set like this
SELECT *
FROM table
WHERE Date LIKE '" & startDate & "%'"
it's working..LIKE meant read either startdate or %..for starting it will read %
Try this :
"Select (listOfFields)
FROM TABLE
where CONVERT(VARCHAR(25), Your_DATE, 126) BETWEEN 'Start_date%' AND 'EndDate%'";
Try something like this
SELECT * from table
WHERE CONVERT(VARCHAR, DateField, 120) BETWEEN '2010%' AND '2012%'
If the dates are of type string, you can't use BETWEEN*.
If the dates are of type date or datetime, you can't use LIKE.
*Actually between might work with text because b is between a and c but it will not return correct results with date strings.