Varchar Minimum Length Check
Oct 7, 2007
Hi,
I have a column set to varchar(12) so I can ensure that the length of the string entered will never be more than 12 characters but I want to limit the string to a minimum of 8 characters, so I end up with a string that is from 8-12 characters long. How do I ensure the minimum length of 8 characters? I'm using SQL Server 2005 if that helps. I tried adding a check constraint like so:
DATALENGTH(UserName) >= 8
But I keep getting an error when I save the table, so any help would be very much appreciated.
Thanks
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Jul 23, 2005
Hi,I am attempting a bulk copy from a c program into SQL Server 2000 usingDBLib in freeTDS 0.63 RC11 (gcc 3.4.3, RH 9). I am getting an error messagethat I cannot find any documentation on.The server is sending back the following: "Received invalid row length 2from bcp client. Minimum row size is 4."I know the row is longer 2 bytes (see below). Once this happened I created atest table and C program. See below. Anyone with any ideas?ThanksProgram output ---------------->$ ./test_bcpbcp'ing This is a test with a length of 14sentMsg 4807, Level 16, State 1Server 'CENTIVIA_10', Line 1Received invalid row length 2 from bcp client. Minimum row size is 4.done<----------------------Table ddl --------------------->CREATE TABLE [xxx] ([col2] [varchar] (32) COLLATE SQL_Latin1_General_CP1_CI_AS NULL) ON [PRIMARY]GO<------------------------------------Compiled using gcc ------------------->gcc -g -I/home/test_user/dev/freetds-0.63RC11/include -Wall -Wno-strict-aliasing-g -O2 -c -o test_bcp.o test_bcp.cgcc -o test_bcp test_bcp.o -L/home/test_user/lib -lsybdb<----------------------------------program source (included the msg and error handlercode) -------------------------->#include <string.h>#include <stdio.h>#include <stdlib.h>#include <sqldb.h>intsyb_msg_handler(DBPROCESS * dbproc, DBINT msgno, int msgstate, int severity,char *msgtext, char *srvname, char *procname, int line){char var_value[31];int i;char *c;if (msgno == 5701 || /* database context change */msgno == 5703 || /* language changed */msgno == 5704) { /* charset changed */if (msgtext != NULL && (c = strchr(msgtext, ''')) != NULL){i = 0;for (++c; i <= 30 && *c != ' ' && *c != '''; ++c)var_value[i++] = *c;var_value[i] = ' ';}return 0;}if (severity >= 0 || msgno == 0) {if (msgno > 0 && severity > 0) {fprintf(stdout, "Msg %d, Level %d, State %d",(int) msgno, (int) severity, (int) msgstate);fprintf(stdout, "Server '%s'", srvname);if (procname != NULL && *procname != ' ')fprintf(stdout, ", Procedure '%s'",procname);if (line > 0)fprintf(stdout, ", Line %d", line);fprintf(stdout, "");fprintf(stdout, "%s", msgtext);fflush(stdout);} else {fprintf(stdout, "%s", msgtext);fflush(stdout);}}return 0;}intsyb_err_handler(DBPROCESS * dbproc, int severity, int dberr, int oserr, char*dberrstr, char *oserrstr){if (dberr == SYBESMSG)return INT_CANCEL;env_set(g_env, "batch_failcount", "1");fprintf(stdout,"DB-LIBRARY error (severity %d, dberr %d, oserr %d, dberrstr%s, oserrstr %s):",severity, dberr, oserr, dberrstr ? dberrstr : "(null)",oserrstr ? oserrstr : "(null)");fflush(stdout);if ((dbproc == NULL) || DBDEAD(dbproc)) {if (dberr != SYBECOFL) {exit(255);}}return INT_CANCEL;}int main(int argc, char *argv[]){DBPROCESS *dbproc;LOGINREC *login;DBINT test_int = 99999999;DBCHAR test_char[32] = "This is a test";dbinit();dberrhandle(syb_err_handler);dbmsghandle(syb_msg_handler);login = dblogin();DBSETLPWD(login, "audit");DBSETLUSER(login, "audit");dbproc = dbopen(login, "192.168.58.1");dbuse(dbproc, "audit_dev");bcp_init(dbproc,"xxx", (BYTE *)NULL, (BYTE *)NULL, DB_IN);printf("bcp'ing %s with a length of%d",test_char,strlen(test_char));//ii = bcp_bind(dbproc, (BYTE *) &test_int, 0, -1, NULL, 0, SYBINT4,1 );//printf("bound %d",ii;bcp_bind(dbproc, test_char, 0, strlen(test_char), NULL, 0, SYBCHAR,1 );bcp_sendrow(dbproc);printf("sent");bcp_batch(dbproc);printf("done");return 0;}<---------------------------------
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Jul 12, 2004
i have problem regarding the row length and varchar.
my problem is on every new row i have +6 more character on one of my field then the last record. and BOL says i can only have 8060 character per row.
What i can not use the full lenght of varchar(8000) on field.
Can anybody help?????????
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Feb 6, 2002
Newbie question:
Why bother specifing the length in varchar()?
Why not just specify the max and not worry about truncation?
Thanks,
Martin
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May 2, 2000
Hi,
I am trying to insert text into a varchar(5000) column from a JAVA program. I am using MSDE database (which I believe is a strip down version of SQL7.0), with a variation of ms SQL Server 3.70.06.90 ODBC driver and tds jdbc driver from inet software. With the ODBC driver, I don't get any error but the data saved is only 255 characters. With the latter driver, I get a data truncation error and nothing is saved.
Any help is appreciated.
Thanks
- Sharma
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Nov 21, 2000
What is the max field length in SQL Server 7.0 that a varchar field can be?
I think 8000. Please advise
Thanks
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Mar 9, 2007
Hi,I have a pretty straightforward question to do with variable length fields I hope someone can help me with:When using varchar (or nvarchar), is there any point in specifying a smaller length than the maximum? Does it save space or improve performance at all?ThanksRedit: I suppose the max rowsize is an issue. any others?
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Aug 21, 2007
Hi all,
a simple question to ask for varchar type. I want to update a varchar type parameter to a stored procedure to update a table. My question is , if I don't specify the length. and the varchar type will be trimmed to only 1 character. I thought it's supposed to be 50 by default? Besides if I need to compare varchar values, do I need to specify length as well? Cheers.
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Feb 2, 2005
Hi, all
I am seting up a table with email message, I am wondering what is the max length for varchar field. I am so reluctant to use text field, since when
I run query for the descriptiona in sql analyzer, text field cannot be fully display in column. Any tricks to share?
Thanks
Betty
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May 22, 2006
Hi, everyone, I want to know is there a way for me to set varchar to store more than 8000 characters? (I did checked from sql server books online and i know that the maximum storage for varchar, but i just want to know is there any exceptional way for me to store more than that).
Thanks for any reply.
aex
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Sep 14, 2007
Hi mates,
I have a Table:Test with column text:varchar(255). I want get rows where text length to be longer than 100. Is it possible?
Thx in advance,
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Oct 1, 2000
Hi all,
I have a strange situation. I have a field in the database that has to be a string type field of around 4000 characters.
So naturally I setup the field as
type: varchar
length: 4000
However when I try to put any text in this field I find that I can put no more than 1023 characters of ascii text in there.
To check if this was a max record length prob I setup a test table with only 2 fields:
ID: int, PK, Identity
longVarchar: varchar, 4000
and tried to put some ascii text into the field called longVarchar. Again the most I could put in was 1023 characters!
Thinking that it could just be that SQL svr box that was wacky, I tried it on another one with the same result.
I have tried using other field types (nvarchar, char) and have found that they all could only hold 1023 characters max, no matter what how high I defined the size of the field.
Try it out yourselves and see if you get the same result. Any useful suggestions would really be appreciated.
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Feb 26, 2008
im trying to learn how to calculate table size.
i understand some of it, but im stuck at calculating the varchars
Ex. i have 2 varchar columns
- varchar(50)
- varchar(100)
i'm suppose to find the average length for them?
i'm suppose to use that to add up to my ROW SIZE
and also after i got the average, do i add 2 for variable columns overhead and another 2 for Row pointer in row offset array
please help me asap before 2morrow night.
Thanks!
i have a test
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Dec 26, 2006
Hi Everyone,I have a question about dynamically changing the length of a varchar(n)field, in case the value I'm trying to insert is too big and will givea "truncated" error, but before the error is given! i.e. Is there somekind of a way to "test" the length of the field while Inserting thevalue into it, and to have it automatically increase its length to thelength of the value being inserted, in case the value is too big?I've been able to do this in a "primitive" way, simply by identifyingthe specific error number in case the value is being truncated, andthen increasing the length of the varchar(n) field by using the ALTERcommand, and then duplicating the insert statement, but is there astandard (shorter) way of doing this?Here is my code (I'm working in an ASP environment):<%var_txt = "abcdefghijklmnopqrstuvwxyz12345678789"sql = "Insert Into Table1 (text) Values ('" & var_txt & "')"On Error Resume Nextconn.Execute sqlIf err = -2147217833 ThenResponse.Write "Error Recognized Successfully!<br /><br />"sql = "ALTER TABLE Table1 ALTER COLUMN text VARCHAR(" &Len(var_txt) &") NOT NULL"On Error Resume Nextconn.Execute sqlIf err<>0 ThenResponse.Write "Error while trying to alter Column:<br/>" & err & "= " & err.description & "<br />"ElseResponse.Write "Column altered successfully to: " &Len(var_txt) &"<br />"sql = "Insert Into Table1 (text) Values ('" & var_txt &"')"On Error Resume Nextconn.Execute sqlIf err<>0 ThenResponse.Write "<br />Error number 2:<br />" &err.description &"<br />"ElseResponse.Write "Now it was added successfully!HaHa!<br />"End IfEnd IfElseResponse.Write "Success."End If%>Thanks in advance!
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Aug 9, 2007
Hi all,
I'm trying to get an understanding of a serious problem I have with a large DB in production. This is going to be obvious to someone (everyone probably) <bg>
I have a table which consists of numerous varchars and ints but also a Text type field. This table resides in a SQL 2000 Database. This DB currently has a data file size of 16Gb and a Transaction Log size of 17Gb. When I edit the table and increase the size of a Varchar field from 50 to 100 these files grow to more than double their size!
Why is this happening and how can I prevent this?
TIA
NozFx
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Jul 24, 2007
Hi All,
Is there a way to check the data type and the maximum length of a field?
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Jul 20, 2005
I am currently working on a PHP based website that needs to be able to drawfrom Oracle, MS SQL Server, MySQL and given time and demand other RDBMS. Itook a lot of time and care creating a flexible and solid wrapper and amdeep into coding. The only problem is a noticed VARCHAR fields being drawnfrom SQL Server 2000 are being truncated to 255 characters.I searched around php.net and found the following :Note to Win32 Users: Due to a limitation in the underlying API used by PHP(MS DbLib C API), the length of VARCHAR fields is limited to 255. If youneed to store more data, use a TEXT field instead.(http://www.php.net/manual/en/functi...ield-length.php)The only problem with this advice is Text fields seem to be limited to 16characters in length, and I am having similar results in terms of truncationwith other character based fields that can store more than 255 characters.I am using PHP 4.3.3 running on IIS using the php_mssql.dll extensions andthe functions referenced here http://www.php.net/manual/en/ref.mssql.php.What are my options here? Has anybody worked around this or am I missingsomething obvious?James
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Sep 21, 2004
Can't seem to get my head around this: I'm looking for a way to select only those varchar(10) values that soley consist of numbers. Leading spaces are allowed.
I tried using isnumeric, but it also allows those with periods, comma's etc.
Also tried using like, but the length of the varchar column varies too much to do a like '[0-9][0-9]....'.
As a solution I currently do a combo of isnumeric, not like '%.%', not like '%,%' etc. I need to do a conversion to an int to join another table, but the convert still fails. Not sure where and why.
I'm thinking there should be a better way than create a hughe list of "not like " but it looks like I'm in the woods here...
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Apr 25, 2008
Hi All,
I have a table Saleshistory with 89481412 records. I have a field Sales of nvarchar type, all the records in this field are numeric, and the records are with 2 decimal places. I expect all the records to be ending at .00 (for example 5.00,345.00,25.00), but I want to verify if something is for example 5.6 etc.
So in short I want to check if any Salesrecords have more than zero values in the decimal. How can I check this.
Please help.
Thanks,
Zee
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Feb 11, 2003
Hi all,
I have a field defined as varchar(8) but this field should not contain any letters, needs to be only numbers. How can I validate the data if it contains only numbers? Any ideas?
Thanks,
Jannat.
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Jan 25, 2007
All,
I am using Reporting Services 2005. One of my reports is getting the following error when I try to export to Excel. It will export to .CSV though.
"Destination array was not long enough. Check destIndex and length, and the array's lower bounds."
Any suggestions would be greatly appreciated. Please copy me at machelle.a.chandler@intel.com.
Machelle
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Jun 30, 2014
is there any way or a tool to identify if in procedure the Parameter length was declarated less than table Column length ..
I have a table
CREATE TABLE TEST001 (KeyName Varchar(100) ) a procedure
CREATE PROCEDURE SpFindNames ( @KeyName VARCHAR(40) )
AS
BEGIN
SELECT KeyName FROM TEST001
WHERE KeyName = @KeyName
END
KeyName = @KeyName
Here table Column with 100 char length "KeyName" was compared with SP parameter "@KeyName" with length 40 char ..
IS there any way to find out all such usage on the ALL Procedures in the Database ?
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Mar 27, 2008
For those of you who would like to reference my exact issue, I'm dealing with the RSExecution SSIS package at the "Update Parameters" data flow task, at the Script Component.
The script tries to split parameter data into name and value. Unfortunately, I have several reports that are passing parameters that are very large. One example has over 65,000 characters all in the normal "¶mname=value&parm2=value..." format.
The code in the script works fine until it gets to one of these very large parameter sets. I have figured out what is causing the issue. Here's some code:
Dim paramBlob as Byte()
paramBlob = Row.BlobColumn.GetBlobData(0, Row.BlobColumn.Length)
The second parameter of the .GetBlobData function takes an INTEGER as its count! Therefore, no matter what kind of datatype I pass to the string that the script will later split, it will be limited to 32767 characters.
THIS IS A PROBLEM!!!
Does anyone know a workaround for this issue? I need all of the parameter data to be reported, and I would hate to have to skip over rows like this. Also, if I'm missing something, please fill me in!
Thanks for your help in advance,
LOSTlover
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Feb 24, 2008
I am trying to narrow down this problem. Basically, I added 3 columns to my article table. It holds the article id, article text, author and so on. I tested my program before adding the additional field to the program. The program works fine and I can add an article, and edit the same article even though it skips over the 3 new fields in the database. It just puts nulls into those columns.So, now I have added one of the column names I added in the database to the code. I changed my businesslogic article.vb code and the addarticle.aspx, as well as the New article area in the addartivle.aspx.vb page. The form now has an additional textbox field for the ShortDesc which is a short description of the article. This is the problem now: The command parameters.length is 9 and there are 10 parameter values. Right in the middle of the 10 values is the #4 value which I inserted into the code. It says Nothing when I hover my mouse over the code after my program throws the exception in 17 below. Why is command parameters.length set to 9 instead of 10? Why isn't it reading the information for value 4 like all the other values and placing it's value there and calculating 10 instead of 9? Where are these set in the program? Sounds to me like they are hard coded in someplace and I need to change them to match everything else. 1 ' This method assigns an array of values to an array of SqlParameters.2 ' Parameters:3 ' -commandParameters - array of SqlParameters to be assigned values4 ' -array of objects holding the values to be assigned5 Private Overloads Shared Sub AssignParameterValues(ByVal commandParameters() As SqlParameter, ByVal parameterValues() As Object)6 7 Dim i As Integer8 Dim j As Integer9 10 If (commandParameters Is Nothing) AndAlso (parameterValues Is Nothing) Then11 ' Do nothing if we get no data12 Return13 End If14 15 ' We must have the same number of values as we pave parameters to put them in16 If commandParameters.Length <> parameterValues.Length Then17 Throw New ArgumentException("Parameter count does not match Parameter Value count.") 18 End If19 20 ' Value array21 j = commandParameters.Length - 122 For i = 0 To j23 ' If the current array value derives from IDbDataParameter, then assign its Value property24 If TypeOf parameterValues(i) Is IDbDataParameter Then25 Dim paramInstance As IDbDataParameter = CType(parameterValues(i), IDbDataParameter)26 If (paramInstance.Value Is Nothing) Then27 commandParameters(i).Value = DBNull.Value28 Else29 commandParameters(i).Value = paramInstance.Value30 End If31 ElseIf (parameterValues(i) Is Nothing) Then32 commandParameters(i).Value = DBNull.Value33 Else34 commandParameters(i).Value = parameterValues(i)35 End If36 Next37 End Sub ' AssignParameterValues38 39 40 41
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Nov 20, 2007
I have looked far and wide and have not found anything that works to allow me to resolve this issue.
I am moving data from DB2 using the MS OLEDB Provider for DB2. The OLEDB source sees the column of data as DT_TEXT. I setup a destination to SQL Server 2005 and everything looks good until I try and run the package.
I get the error:
[OLE DB Source [277]] Error: An OLE DB error has occurred. Error code: 0x80040E21. An OLE DB record is available. Source: "Microsoft DB2 OLE DB Provider" Hresult: 0x80040E21 Description: "Multiple-step OLE DB operation generated errors. Check each OLE DB status value, if available. No work was done.".
[OLE DB Source [277]] Error: Failed to retrieve long data for column "LIST_DATA_RCVD".
[OLE DB Source [277]] Error: There was an error with output column "LIST_DATA_RCVD" (324) on output "OLE DB Source Output" (287). The column status returned was: "DBSTATUS_UNAVAILABLE".
[OLE DB Source [277]] Error: The "output column "LIST_DATA_RCVD" (324)" failed because error code 0xC0209071 occurred, and the error row disposition on "output column "LIST_DATA_RCVD" (324)" specifies failure on error. An error occurred on the specified object of the specified component.
[DTS.Pipeline] Error: The PrimeOutput method on component "OLE DB Source" (277) returned error code 0xC0209029. The component returned a failure code when the pipeline engine called PrimeOutput(). The meaning of the failure code is defined by the component, but the error is fatal and the pipeline stopped executing.
Any suggestions on how I can get the large string data in the varchar column in DB2 into the varchar(max) column in SQL Server 2005?
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Sep 17, 2007
In my table I have values like (2,3). I want to get the minimum value from the column
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Jan 4, 2008
I am trying to create a store procedure inside of SQL Management Studio console and I kept getting errors. Here's my store procedure.
Code Block
CREATE PROCEDURE [dbo].[sqlOutlookSearch]
-- Add the parameters for the stored procedure here
@OLIssueID int = NULL,
@searchString varchar(1000) = NULL
AS
BEGIN
-- SET NOCOUNT ON added to prevent extra result sets from
-- interfering with SELECT statements.
SET NOCOUNT ON;
-- Insert statements for procedure here
IF @OLIssueID <> 11111
SELECT * FROM [OLissue], [Outlook]
WHERE [OLissue].[issueID] = @OLIssueID AND [OLissue].[issueID] = [Outlook].[issueID] AND [Outlook].[contents] LIKE + ''%'' + @searchString + ''%''
ELSE
SELECT * FROM [Outlook]
WHERE [Outlook].[contents] LIKE + ''%'' + @searchString + ''%''
END
And the error I kept getting is:
Msg 402, Level 16, State 1, Procedure sqlOutlookSearch, Line 18
The data types varchar and varchar are incompatible in the modulo operator.
Msg 402, Level 16, State 1, Procedure sqlOutlookSearch, Line 21
The data types varchar and varchar are incompatible in the modulo operator.
Any help is appreciated.
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Nov 20, 2006
For the life of me I cannot figure out why SSIS will not convert varchar data. instead of using the table to table method, I wrote a SQL query so that I could transform the datatype ntext to varchar 512 understanding that natively MS is going towards all Unicode applications.
The source fields from Access are int, int, int and varchar(512). The same is true of the destination within SQL Server 2005. the field 'Answer' is the varchar field in question....
I get the following error
Validating (Error)
Messages
Error 0xc02020f6: Data Flow Task: Column "Answer" cannot convert between unicode and non-unicode string data types.
(SQL Server Import and Export Wizard)
Error 0xc004706b: Data Flow Task: "component "Destination - Query" (28)" failed validation and returned validation status "VS_ISBROKEN".
(SQL Server Import and Export Wizard)
Error 0xc004700c: Data Flow Task: One or more component failed validation.
(SQL Server Import and Export Wizard)
Error 0xc0024107: Data Flow Task: There were errors during task validation.
(SQL Server Import and Export Wizard)
DTS used to be a very strong tool but a simple import such as this is causing me extreme grief and wondering of SQL2005 is ready for primetime. FYI SP1 is installed. I am running this from a workstation and not on the server if that makes a difference...
Any help would be appreciated.
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Apr 26, 2007
Hi All,How do I set just enough permissions on a database so that a developer cancreate new objects and modify them without giving him administratorprivilege. At the moment the db objects are dbo and execute permissions aregranted to indevidual through a schema.GRANT EXECUTE ON [dbo].[My_Prcsedure] TO [MySchema]Thanks
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Dec 20, 2004
i need to create a dynamic field, which returns the minimum value of 2 fields.
A B C(i need)
500 600 500
350 250 250
825 950 825
select A,B,min(A,B) as C from MyTable
i know this query is wrong,
pls help me to solve this problem
RGDS
BAHA
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Mar 15, 2007
How can I find the minimum value of column?
Select salonuid, avg(LPPA),[Find the minimum](LPPA) from kpi.dbo.employee_data group by salonuid
The Yak Village Idiot
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May 5, 2006
How to find the minimum value from time Timestamp column ?
I want get the eralier timestamp vlaues from the avaliable list
when iam using Aggregate transformation ..its again giving all the list of vlaues
Thanks
Niru
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Dec 6, 2004
Hallo Cracks,
what I try is a little bit heavy, maybe, but I only miss the minimum/maximum fuction - or I didn´t found it; not here in the Forum and also not in the onlinehelp of the SQL Server.
What I try to do:
I have 2 columns in my table; a start- and an end-date. For this period of time between end and start i have to calculate the days for the years. Here my thoughts (for the current year):
Is the startdate <= 31.12.2004 and the enddate >= 1.1.2004 i have to calculate die datediff between max(1.1.2004/startdate) and min(31.12.2004/enddate)
like this sqlstatement:
SELECT CASE WHEN dbo.Phases.phasenstart <= CAST(CAST(YEAR(GETDATE()) AS
varchar) + '-31-12' AS smalldatetime) AND dbo.Phases.phasenabschlussist >=
CAST(CAST(YEAR(GETDATE()) AS varchar) + '-01-01' AS smalldatetime)
THEN 365 ELSE 0 END AS Expr2,
FROM dbo.Phases
WHERE (phasenstart IS NOT NULL) AND (phasenabschlussist IS NOT NULL)
instead of 365 there must be the above calculation. Is start=3.1.2003 and end=30.1.2004 I expect as result only the 30 days in 2004.
thanks in advance and kind regards :-)
Cappu
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