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
What is the max field length in SQL Server 7.0 that a varchar field can be?
I think 8000. Please advise
Thanks
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!
View 2 Replies View RelatedI have a text field and want to know if any of the text exceeds 10,000 characters
I can do a select max(len(rtrim(convert(varchar(8000)))) on the field but I'm not able to do for more than 8000 and you can't manipulate TEXT datay type.
Any ideas?
Thanks!
How do I create a text file with fixed length fields from a SQL table using a stored procedure.
View 4 Replies View RelatedI am trying to change a text field into a varchar 8000.
I get his error message when trying to convert.
Unable to modify table.
ODBC error: [Microsoft][ODBC SQL Server Driver][SQL Server]Cannot create a row of size 8317 which is greater than the allowable maximum of 8060.
[Microsoft][ODBC SQL Server Driver][SQL Server]The statement has been terminated.
Anyone know of a way to either truncate the text field or
to select only those that are over the 8000 character mark?
Please advise
Thanks
Susan
I understood that sql 2005 has EncryptByCert(varchar) function to encrypt data field. but varchar is limit by 8,000 chars long.
View 3 Replies View RelatedWe're connecting to SQL Server 7.0 (sp2) via ODBC for our ASP application, and are having trouble saving information collected in a <textarea> tag on an HTML form. I assume the <textarea> tag contains data of type TEXT. i thought there would be no problem in converting it into a string and saving it in a VARCHAR field in the database. this works fine as long as the string is 255 characters or less. anything over that give me an "Errors Occurred" SQL Server error. the field that i'm saving this into is a VARCHAR length 8000. i thought SQL 7.0 had gotten rid of the 255 limit on varchar - could this be an ODBC driver problem (on my web server i currently have 3.50.0305) and/or should i install service pack 2 on my SQL Server? anyone advice would be much appreciated.
thanks,
matt
Hi all. I have been going round and round for the past 2 days on this and would appreciate any help. In a view select statement, I need to concat 2 varchar fields with a text field. If I CONVERT the TEXT field to VARCHAR, only the first 30 characters of the field appear in the result set. If I convert the VARCHAR fields to TEXT, I get an error that I cannot CONCAT TEXT fields. I'm not sure what to do. Can someone please offer some assistance? Thanks in advance! Steve
View 1 Replies View RelatedI can't paste text (directly into table row via enterprise manager) into a varchar (5000) field, truncates after about 960 char. Length of string trying to paste is about 1400 characters including spaces. No special characters (one apostrophe). Error happens intermittently.
SQL server v2000
Does anyone know of a way to execute sql code from a dynamically builttext field?Before beginning, let me state that I know this db architecture isbuilt solely for frustration and I hope to make it better soon.Unfortunately, there is never a non-crucial time in which we can do anupgrade, so we are stuck for now.Point 1:There are multiple tables: students, courses, cross-referencestudent/courses, teachers, cross-reference teacher/courses, andothers.Point 2:Yearly archiving is done by appending a 2 digit year suffix to thetable and rebuilding the table structure for the current year. Thatis, each of the tables named above has an archive table for 1999,2000, 2001, etc. This leads to many tables and a big mess whenunioning them.Point 3:A history report is run by building a big query that unions each unionof tables (students, courses, etc) by year. This query has grown toobig for a varchar(8000) field. Actually, it's too big for 2 of them.Point 4:I don't want to write code to maintain any more varchar(8000) fieldsfor this query. It should be much more easily handled with atemporary table holding each bit of yearly archive data. I have builtthis and it works fine. I have also figured out how to pull the rowsfrom that table, concatenate them, and insert the resulting lump intoa text field in another table.Point 5:I haven't figured out how to grab the 5 or so records from that tableand execute them on their own. I figured I could grab them, put theminto a text field that's big enough to hold the whole query and thenselect and execute that text field. I've had no luck with that and Ihaven't had any luck finding any references that might help me withthis problem. I keep thinking of nesting execute() calls, but thatdoesn't work.I'm open to questions, potential solutions, hints about different wayto approach the problem, anything.Many thanks in advance,Rick Caborn
View 7 Replies View Relatedi 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?????????
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:
Inserted Value -> Result in table
123456-8 -> 123456-8 *Correct
1234567-9 -> 1234567- *Wrong
123456789 -> 123456789 *Correct
1234567#9 -> 1234567# *Wrong
1234567a9 -> 1234567a9 *Correct
Why is it that characters such as '-' and '#' are truncating the value, but only if the string is 9 chars long?
I'm currently using a direct t-sql insert statement in SQLExpress. The field is a simple NVARCHAR(9) field.
Newbie question:
Why bother specifing the length in varchar()?
Why not just specify the max and not worry about truncation?
Thanks,
Martin
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
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?
View 2 Replies View Related
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.
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
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
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,
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.
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
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
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
View 4 Replies View Relatedi want to import/copy a varchar field numeric data in to number field pls suggest the solution
one thing more can i convert field type of a table how?
jto it
Hello,
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.
UPDATE myTable SET field = CAST(field AS int)
I have followed many tutorials on selecting and replacing text in text fields, varchar fields and char fields, but I have yet to find a single script that will to all 3 based on field type. Let's assume for a moment that I don't know where all in my database a certain value that I need changed resides ... i.e., the data's tablename and fieldname. How would I go about doing the following ... or more importantly, is this even possible in a SQL only procedure?1) Loop over entire database and get all user tables2) Loop over all user tables and get all fields3) Loop over all fields and determine the field type4) switch between field types and change a string of text from 'a' to 'b'Please be gentle, I'm a procedure newb.
View 9 Replies View Relatedis there a property in the sql server where i can track the length of the value in a field.
Funnyfrog
What is the maximum text length that can be entered into a sql server field and what data type should be used for it?
Thanks!
Hi, can anyone tell me the best/easiest way to increase a field length in a table. We are using SQL 6.5
Regards
Hey all.
I'm looking around for a solution on how to pull records back based on legnth.
So, if field A is more then 2 characters, return that row.
Thanks
Caden
I have a database on sql2000. I want to change the length of a field in Table A, but it is related to another field in Table B. When I tried to change the length of the field in Table A via
ALTER TABLE table ALTER COLUMN field varchar(5).The query analyzer generates the following error.
Server: Msg 5074, Level 16, State 8, Line 1
The object 'UQ__table__77BFCB91' is dependent on column 'field'.
Server: Msg 4922, Level 16, State 1, Line 1
ALTER TABLE ALTER COLUMN field failed because one or more objects access this column.While when I tried the same query on the field in TABLE B, the query completed without any errors.
I'm sure it is possible to select all records where the length of a given field equals a certain value, but I don't know how to do it?
Can somebody tell me how?
Hans