How To Insert A Zero Length String Into A Field Using SqlDataSource?
Jul 25, 2006
I have a few columns in table with default value defined as zero length string (''). I want to insert record from DetailsView which uses SqlDataSource as DataSource. In the ItemInserting event, if the data is not valid, I want to use zero length string for the column. But I always get Null instead of zero length string. The code in ItemInserting event looks like this:
If objddl.SelectedIndex > 0 Then
e.Values("myFld") = objddl.SelectedItem.Value
Else
e.Values("myFld") = ""
End If
The line: e.Values("myFld") = "" put Null in the column.
How can I set a column as zero length string using the SqlDataSource?
I have a requirement where i have to insert empty string in column whose datatype is decimal.
I have to replace the column value if it is null then insert it as ' '.
Obviously its generate error msg for conversion, is there any workaround for this. I cannot add 0 or other value as this column is used to generate some output value.
IIF(Column1 IS NULL, ' ', Column1))
I used TRY_PARSE but it insert null value if there is conversion error.
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:
What is the C# code I use to do this? I'm guessing it should be fairly simple, as there is only one row selected. I just need to pull out a specific field from that row and then insert that value into a different SqlDataSource.
I need to write a query that tells me which string values are empty orblank in a table.Is it possible to return the length of the string contained in characterfield?
I create a dataset from a sqlce 3.5 database (I drag-dropped the tables of the database on the DataSet).
And when I try to put a text with more than 4000 characters in the dataset, it throw me an exception ....
--> I tried to insert this text directly in sql ce and it works well! So I think that the DataSet has a limitation?? But the maxlength of the string coloumn of the dataset is set to 536870911
I 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.
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 have a created a table and entered data into the table as follows:
CREATE TABLE t ( id INT , txtcol varchar(1000) )
INSERT INTO t ( id , txtcol ) VALUES ( 1 , 'ATXR_SOURCE_ID,CDDL_AG_PRICE,CDDL_ALLOW,CDDL_ALTDP_EXCD_ID,CDDL_CAP_IND,CDDL_CHG_AMT,CDDL_COINS_AMT,CDDL_CONSIDER_CHG,CDDL_COPAY_AMT,CDDL_DED_AC_NO,CDDL_DED_AMT,CDDL_DIS_PA_LIAB,CDDL_DISALL_AMT,CDDL_DISALL_EXCD,CDDL_DISC_AMT,CDDL_DP_PRICE,CDDL_FROM_DT,CDDL_PAID_AMT,CDDL_PF_PRICE,CDDL_PR_PYMT_AMT,CDDL_PRICE_IND,CDDL_REF_IND,CDDL_RISK_WH_AMT,CDDL_SB_PYMT_AMT,CDDL_SURF,CDDL_TOOTH_BEG,CDDL_TOOTH_END,CDDL_TOOTH_NO,CDDL_TOT_PA_LIAB,CDDL_UNITS,CDDL_UNITS_ALLOW,CGCG_ID,CGCG_RULE,DPCG_DP_ID_ALT,DPDP_ID,DPTC_CD,PDVC_LOBD_PTR,PSDC_ID,UTUT_CD' )
Now if i select data using the query below the txtcol field displays only 255 characters :
There are two fieldsA1 nvarchar(30)A2 nvarchar(800)I know nvarchar field is alterable length, if I store a string mystring='abc' to A1 field or to A2 field, I think they use the same disk space, so I think it's always a good way to define a big length nvarchar field such as A3 nvarchar(4000) for any length string, becuase they always use the same disk space, is it right?
I need to expand the size of one column which has been defined as varchar(32) to varchar(50).Is this possible?Already there are many old records in the table,in what way it will effect the old records?Any help is appreciated. Thanks!!
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
If I want to make a field of characters to be unlimited length(or maybe 2k for example), what datatype should I use? Char, varchar and text have a max. limit of 255...
I have to modify field length in the table, which is part of publication. I tried to use an Enterprise Mgr and received an error message because that table is scheduled for replication. Is any way around this beside temporary stopping and restarting replication? And actually how to do this to be sure that after restart the data will be again in sync. We have SQL Server 2000 Enterprise Edition and Windows 2000 Advanced Server.
Hi everyoneI had an access database running as the source for a website but ithas become too large to run correctly so it has been ported to MS-SQLthe problem is that 4 of the fields were Memo fields in access and assuch are 5000+ characters long each this overflows the allowed size onthe SQL server (8192)Is there a way round without splitting those 4 fields into seperatetales?? as this would cause a truly major re-write of the websiteThanks for any helpFurther details available if required
How to get the max length of numeric field in a DataSet? I have a DataSet bound to an Access database. Is it possible to get the maximum length of numeric field of a table in the DataSet? Many fields in the database tables have maximum length values set in ...
I am trying to use DTC to import about 500 records from an Excelsheet to an SQL database.
Some fields contain strings with a length of about 1700 characters.
When i'm trying to execute the DTC generated code it is giving an error and saying that the maximum string length of 255 has been reached. Althoug the column in the database is defined as nchar(1750).
SQL 2000.I need a query that will search a field in the table that is 14characters long and begins with a number.I have a client that was allowing people to store credit card numbers,plain text, in an application. I need to rip through the table andreplace every instance of credit card numbers with "x" and the last 4digits. I got the replace bit going, but I am stuck on how to searchfor a string in a field of a specific length.Any ideas?Thanks,--Mike
I have to export data from a database in a special form (the customer wants it this way): every record in one line, and all fields in a large string. Thus, only by convendion it is defined the first seven characters being the central number, the next fivr characters the number of this spare part type, the following 30 the description, and so on... Just at the end of every record has to be CF-LF.
all works well so far by with this code (in PHP) - except one thing - see details below the code snippet):
The INT (integer) fields appear in the (plain text) output file with wrong field lengths. Although I had set the first field (i.e. the number of this type ofparts) to a length of 5, this field appears in the outfile being 10 characters long -- the maximum length of a normal INT type field (and twice as long as it should be).
Or (when set to filed type "MEDIUMINT"), it appears in the length of 8 characters only. But I need this data exactly 5 characters long in this application.
BIG QUESTION: How can I make mySQL (Ver. 4.1) write this fields into the outfile with their correct length as defined in the database structure?
Is this flaw already known in the community? Is there any sort of "workaround"?
I am running a stored procedure thru' isql. This returns only one field. The sp is executed fine but if the data has length greater than 255 the data is truncated. How do u capture the full output ?
Hi, I am trying to upload a fixed field text file to a sqlserver table using the DTS wizard. The txt file has 111 columns and the total length of a single row is 5897. The problem is when I use the wizard to specify the starting and ending of each column, its not allowing me to specify the columns beyond the position 4095. Is there a limitation on this? if so is there a work around ? to solve this. Any help on this is truly appreciated.
I have two databases that are merged using replication, and I want to change the length of one of the fields. Can anyone think of a way of doing it that doesn't require dropping the whole publication and rebuilding it? Thanks Ed
I have a field Char(10) named bank, and another one Char(15) named namebank.
I need to create a TSQL query, but i need to preserve the white space on my first field named bank and concatenate with the other namebank, this last i dont need white space.
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!