Select Max Value Of One Field For Value Of Other Field(s)
Feb 29, 2008
I would like to query a table for a max value of one field for a distinct combination of two other fields. Let's call these fields RowID, ObjectID, and ObjectType. RowID is an auto-increment field, so for each distinct combination of ObjectID and ObjectType, there will be many values of RowID. To visualize an example:
Of these rows, I would only want 4, 5, and 6 (max values for distinct combination of ObjectID and ObjectType).
I hope I explained this clearly. I would imagine I'd need to use some form of nested query, but nothing I have tried so far has worked. I am using SQL 2005.
I need some help.I am trying to write a query which does the followingSELECT * from table1 where field1=(SELECT distinct field1 FROM table1WHERE field2='2005' or field2='2010')I need all the values from table1 which match any value from field 1from the subquery.Any help is appreciated.thanks
I'm using DTS to import data from an Access memo field into a SQL Server ntext field. DTS is only importing the first 255 characters of the memo field and truncating the rest.I'd appreciate any insights into what may be causing this problem, and what I can do about it.Thanks in advance for any help!
I need to pass in null/blank value in the date field or declare the field as string and convert date back to string.
I tried the 2nd option but I am having trouble converting the two digits of the recordset (rs_get_msp_info(2), 1, 2))) into a four digit yr. But it will only the yr in two digits. The mfg_start_date is delcared as a string variable
option 1 I will have to declare the mfg_start_date as date but I need to send in a blank value for this variable in the stored procedure. It won't accept a null or blank value.
I am trying to drag data from Informix to Sql Server. When I kick off the package using an OLE DB Source and a SQL Server Destination, I get DT_DBDATE to DT_DBTIMESTAMP errors on two fields from Informix which are date data ....no timestamp part
I tried a couple of things:
Created a view of the Informix table where I cast the date fields as datetime year to fraction(5), which failed.
Altered the view to convert the date fields to char(10) with the hopes that SQL Server would implicitly cast them as datetime but it failed.
Hi ,Have a Visual C++ app that use odbc to access sql server database.Doing a select to get value of binary field and bind a char to thatfield as follows , field in database in binary(16)char lpResourceID[32+1];rc = SQLBindCol(hstmt, 1, SQL_C_CHAR,&lpResourceID,RESOURCE_ID_LEN_PLUS_NULL , &nLen1);and this works fine , however trying to move codebase to UNICODE antested the followingWCHAR lpResourceID[32+1];rc = SQLBindCol(hstmt, 1, SQL_W_CHAR,&lpResourceID,RESOURCE_ID_LEN_PLUS_NULL , &nLen1);but only returns 1/2 the data .Any ideas , thoughts this would work fine , nit sure why loosing dataAll ideas welcome.JOhn
Hi,another problem I have is that have compounded fields in my sql table.Exampleproduct@customerI need a simple function to return "customer", so it should return the valueafter "@", unfortunate "@" will sometimes be character number 6, sometimescharacter number 7 etc.regardsJorgen
I have a very strange situation. I've increased the size of an NVARCHAR field from 8 to 9 in a database table. The format of the data that I enter will either be an 8 character field (123456-8) or a 9 character field (1234567-9). The '-' is critical.
It used to only accept the 8 character version, but after increasing the field size, if I try to insert the 9 character field version, it gets truncated after the '-', as though it's still only allowing 8 characters. But that only occurs when I include the '-' or other such characters like '#'. If I try to insert 1234567a9, it works. The following explains the outcomes:
I need create a field to store tax rate. I need only 2 decimal points. I defined the field as decimal, precision=5 and scale=2. Does it mean that it can hold value from 0.00 to 999.99?
I'm importing an Access database to SQL Server 2000. The issue I ran into is pretty frustrating... All Memo fields that get copied over (as Text fields) appear to be fine and visible in SQL Server Enterprise Manager... except when I display them on the web via ASP - everything is blank (no content at all).
I didn't have that problem with Access, so I ruled out the possibility that there's something wrong with the original data.
Is this some sort of an encoding problem that arose during database import? I would appreciate any pointers.
We have a stock code table with a description field and a brand field - when the data was entered, some of the records were entered with the brand field in the description field.
ie. Code Description Brand ABC1 BLANK DVD SONY ABC2 SONY BLANK DVD SONY
what I need to do is identify where the Brand is in the Description field ...
I have a table called BidItem which has another table calledBidAddendum related to it by foreign key. I have another table calledBidFolder which is related to both BidItem and BidAddendum, based on acolumn called RefId and one called Type, i.e. type 1 is a relationshipto BidItem and type 2 is a relationship to BidAddendum.Is there any way to specify a foreign key that will allow for thedifferent types indicating which table the relationship should existon? Or do I have to have two separate tables with identical columns(and remove the type column) ?? I would prefer not to have multipleidentical tables.
I am trying to populate a field in a SQL table based on the valuesreturned from using substring on a text field.Example:Field Name = RecNumField Value = 024071023The 7th and 8th character of this number is the year. I am able toget those digits by saying substring(recnum,7,2) and I get '02'. Nowwhat I need to do is determine if this is >= 50 then concatenate a'19' to the front of it or if it is less that '50' concatenate a '20'.This particular example should return '2002'. Then I want to take theresult of this and populate a field called TaxYear.Any help would be greatly apprecaietd.Mark
I know there has to be a way to do this, but I've gone brain dead. Thescenario..a varchar field in a table contains a date range (i.e. June 1,2004 - June 15, 2004 or September 1, 2004 - September 30, 2004 or...). Theusers have decided thats a bad way to do this (!) so they want to split thatfield into two new fields. Everything before the space/dash ( -) goes intoa 'FromDate' field, everything after the dash/space goes into the 'ToDate'field. I've played around with STRING commands, but haven't stumbled on ityet. Any help at all would be appreciated! DTS?
i've a reasonable amount of experience with MS Access and less experience with SQL Server. I've just written an .NET application that uses an SQL Server database. I need to collate lots of data from around the company in the simplest way, that can then be loaded into the SQL Server database.
I decided to collect the info in Excel because that's what most people know best and is the quickest to use. The idea being i could just copy and paste the records directly into the SQL Server database table (in the same format) using the SQL Server Management Studio, for example.
Trouble is, i have a problem with line feed characters. If an Excel cell contains a chunk of text with line breaks (Chr(10) or Chr(13)) then the copy'n'paste doesn't work - only the text up to the first line break is pasted into the SQL Server database cell. The rest is not pasted for some reason.
I've tried with MS Access too, copying and pasting the contents of a memo field into SQL Server database, but with exactly the same problem. I've tried with 'text' or 'varchar' SQL Server database field formats.
Since i've no experience of using different types of databases interacting together, can someone suggest the simplest way of transferring the data without getting this problem with the line feeds? I don't want to spend hours writing scripts/programs when it's just this linefeed problem that is preventing the whole lot just being cut'n'pasted in 5 seconds!
I have a table with a column that is currently a varchar(50), but I want to convert it into an int. When I try to just change the type in design mode I get an error that conversion cannot proceed. When I look at the field it appears some of the entries have special characters appended at the end, I see a box after the value.
How can I remove all speical characters and then convert that field to an int?
Also I tried the following query which did not work as well, same error about conversion.
Can anyone point me any solution how to export a MEMO field from an Access database to a TEXT field from an MS SQL Server 2000. The import export tool from SQL server doesn't import these fields if they are very large - around 9000 characters.
HAX603 JULY 1 OCTOBER 31 HAX317 DECEMBER 1 DECEMBER 31 HAX317 MARCH 1 MARCH 31 HAX317 July 1 July 28
[Code] ...
Final Output
NUM STATUS ACTIVITYCODE <SEASONS>
HAX603 Completed 0x45845a 1 JULY - 31 OCTOBER, 1 DECEMBER - 31 DECEMBER HAX317 Completed 0x112z44 1 DECEMBER - 31 DECEMBER, 1 MARCH - 31 MARCH, 1 July - 30 July HAX465 Completed 0x1155x4 1 MARCH - 31 MARCH, 1 July - 28 July, 1 August - 30 August HAX523 Completed 0x124c69 1 November - 30 November
I have written a query to join the values of multiple field, but lacking in as how will I formulate a view which will check for the duplicate values of Num fields and merge there values in a single field like season.
select num, (CAST(startday AS VARCHAR(3)) + ' ' + startmonth + ' - ' + CAST(endday AS VARCHAR(3)) + ' ' + endmonth)AS Season from seasons;
Hi, I've got a question! In a database I have a field interest-target with values like 8,15,115,3 and 18,13,15,6 and 51,6,7,118 etc. Now I like to select from these fields the value 8. I tried the following: SELECT * FROM TABLE WHERE FIELD LIKE '%8,%' OR FIELD LIKE '%,8,%' OR FIELD LIKE '%,8%' I will the also get the value 18 wich I don't like :-( Any solutions here? Thanks! Roel
Is there a way in SQL Server to query for a character that is in a field? ... I have this old table before there was form validation, and I want to get the addresses out of the column that actually have an @.
I want to do something like this.
SELECT email FROM xyz WHERE email contains '@' AND email contains '.'
Hi, Can someone tell me if it is possible to do an SQL insert with a select (to copy specific records) query and specify the value for a specific field to insert in the new records instead of using the value in the field in the select statement. If so can you provide me with a simple example. Cheers Mark :)
I've a select SELECT Field1, Field2, Field3 FROM Tablethe problem is that I can have filled Field1 OR Field2 ... I would like to create a new column in the result for see only the filled field if Field1 is = null or = ' ' I want to see Field2 if Field2 is = null or = ' ' I want to see Field1
