Default Empty String Value For Varchar Columns
Jun 4, 2008Hi guys,
Is there a way to declare a default value of empty string '' for a varchar table column?
Thanks,
Kevin
ADVERTISEMENT
How To Specify An Empty String As A Default Column Value?
Dec 6, 2007In the Column Properties window's 'Default Value or Binding' property, how do you specify an empty string?
Thanks.
DB Design :: What Is Default Database Value For Empty String
Sep 10, 2015What is the format for the SQL Server empty string default value?
View 4 Replies View RelatedWhat Is The Difference Between Updating Null Value Vs Empty String To Varchar/char Field?
Aug 29, 2007Hi,
What is the difference updating a null value to char/varchar type column
versus empty string to char/varchar type column?Which is the best to do and why?
Could anyone explain about this?
Example:
Table 1 : tCountry - Name varchar(80) nullable
Table 2 :tState - Name char(2) nullable
Table 3 :tCountryDetails - countryid,state (char(2) nullable) - May the country contain state or no state
So,when the state is not present for the country ,i have two options may be - null,''
tCountryDetails.State = '' or tCountryDetails.State = null?
Default To NULL Instead Of Blank/empty String During Flat File Import
Aug 15, 2006Hi,
In SSIS flat file import using fastload, I'm trying to import data into SQL 2005 previously created tables.
The table may contain column that are NULLable BUT there is NO DEFAULT for them.
If the incoming data from flat files contains nothing either between the delimeters, how can I have a NULL value inserted in the column instead of blank/empty string?
I didn't find an easy flag unless I'm doing something wrong. I know of at least two ways to do it the hard way:
1- set the DEFAULT(NULL) for EVERY column that needs this behaviour
2-set up some Derived Column option in the package to return NULL if the value is missing.
Both of the above are time consuming since I'm dealing with many tables. Is there a quick option to default the value to NULL WHEN there is NO data ELSE insert the data itself? So the same behavior that I have right now except that I want NULL in place of empty string/blank in the varchar(x) columns.
Thanks
Anatole
Script To Search For A String In All Varchar Columns In All Tables In A Database?
Sep 14, 2005I have a string which I need to know where it came from in a database.I don't want to spend time coding this so is there a ready made scriptwhich takes a string as a parameter and searches all the tables whichcontain varchar type columns and searches these columns and indicate whichtables contain that string?Full text search is not enabled.--Tonyhttp://dotNet-Hosting.com - Super low $4.75/month.Single all inclusive features plan with MS SQL Server, MySQL 5, ASP.NET,PHP 5 & webmail support.
View 1 Replies View Related[varchar] (100) And Empty Space
May 22, 2007Hello
I am creating the following table
CREATE TABLE [dbo].[myT] (
[name] [varchar] (100) NULL
)
if I do
INSERT INTO myT (name) VALUES ('A')
i get in the table a column with
A ...
the 100 char place is full even if there is a data with only 1 char
how is it possible to avoid it ?
I want 100 char maximum but not full with nothing
thank you for helping
What Does A Stored Procedure Recieve From A SqlDataSource Who's Parameter Is Empty And No Default Value Set?
Nov 24, 2006If a sqldatasource is programed to send textbox1.text to a stored procedure, and the .text property is left empty, and there is no default value set for the parameter, what exactly is the stored procedure receiving?I would like to run a IF BEGIN statement on the value of the parameter in the stored procedure but the following does not work:IF @Parameter IS NULL BEGINor IF @Parameter = '' BEGINThe only way I've gotten it to work is if I set the default value of the parameter being sent to a specific alphanumeric value. Then do something like:IF @Parameter = '99' BEGIN<Code Here>END
View 4 Replies View RelatedVarchar Default Length
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.
Exlude Row With Empty Columns
Sep 26, 2007Hey
I want my output to exlude the rows where some columns is missing theire values..
how can I do that?
Empty String To Null
Jul 11, 2001example
create view v_GuestOrder
as
Select T1.id_Guest,T2.OrderName
from Guest T1
left join Order T2 T2.id_order = T1.Id_order
select * from v_GuestOrder
--
Id_Guest OrderName
-------- -----
1 spoon
2 phone
3
4 tv
I need something similar to
Select
id_Guest,
case orderName
when '' then Null -- Sql server gives error in thsi case
end as orderName
from v_GuestOrder
So I need to assign NULL to OrderName is query return empty string,
it will be treated by Crystal reports as Null
Please help , thanks
Bcp Out Empty String Into Csv Files
Jun 19, 2008I have a SQL Server table with nvarchar type column which has not null constraint. I am inserting empty string ("") from Java to the table column. When I export this table into .csv file using bcp tool, empty string gets written as NUL character. Is there any way I can bcp out empty string as empty string itself instead of NUL to the file?
View 3 Replies View RelatedConstraint For An Empty String
Jul 27, 2007How do I prevent a column having empty strings entered into it. I want to allow
nulls but not allow empty strings.
Paul
Order By String Not Empty?
Jul 20, 2005Hi ng.I have a varchar field in my table, called Name.I wanna do a selection, which is ordered by whether this field is empty ornot.E.g. something like:SELECTUserIDORDER BYName <> '';- - -How can I accomplish this?TIA.Klaus.
View 4 Replies View RelatedHow To Cast Empty String
Mar 22, 2006I want to replace a column value with a null if the string is empty. I would have thought this simple expression would do it:
RTRIM([FromContractSymbol]) == "" ? NULL(DT_STR, 0, 1252) : (DT_STR, 6, 1252)FromContractSymbol
Yet, I get the following error:
For operands of the conditional operator, the data type DT_STR is supported only for input columns and cast operators. The expression "...see above..." has a DT_STR operand that is not an input column or the result of a cast, and cannot be used with the conditional operation.
The expression works if I replace the NULL(DT_STR, 0, 1252) with say "A" and the expression works on other non-string columns. (As in "NULL(DT_I1) : (DT_I1)100")
ODBC Cant Use Empty Objects Or Columns
Mar 30, 1999I have recently installed SQL 7.0 on a test server for the purpose of testing an application that currently runs on SQL 6.5. I used the Upgrade Wizard to move a small test database from 6.5 to 7.0. The upgrade was successful, with a few errors that were from Logins that were not defined as users in the test database.
When I try to run the application on 7.0, I get a series of “ADO Exception” errors with the SOURCE : OLE DB Provider for ODBC Drivers. The description of the errors reads “Cannot use empty object or column names. Use a single space if necessary.” When I select OK in the message box, the application continues to load, until another error occurs. After 20 –30 message boxes, the application comes up. However once in the application, the errors continue.
Is there someone who could shed some light on the nature of my problem? There is obviously something incompatible between the latest version of the SQL ODBC driver, my application, and the database. The description seems to refer to empty columns or tables. Obviously, this was not a problem with 6.5 and the older ODBC driver (3.60). I have run the database through the upgrade wizard twice. Once with the ANSI NULLS option OFF, and the other time with it ON. This makes no difference. I have searched the Microsoft Web site under SQL and ODBC using some of the keywords in the message box., but did not come up anything useful. Any help would be greatly appreciated.
Query Help, What Columns For All Records Are Empty
Aug 30, 2004I am wanting to make a query to find out if there are any columns in a table that are null for all records.
So far I am using a cursor that holds all the column names of that table and then a stored procedure that would use a loop to cycle through all the column names in a query to essentially count the number of nulls for each column and then an If statement to check to see if the #of nulls = to the number of records.
What isn't working is my query to count the number of nulls...Here is my query
select count(*)
from XYZ
where @cName is null
Ive tried declaring cName as a sysname, and varchar, neither work.
Also, I've tried using COL_NAME(OBJECT_ID('XYZ'), someColumnIndx)...I think this would be the better choice just because I wouldn't need to use a cursor, but both aren't working.
I am a bit new to MSSQL and don't know my way around the system tables. Is there a sys table that would give me this info so I wouldn't need to perform a query?
Any info would be great.
Checking If String Is NULL Or EMPTY In SQL
Nov 9, 2007I need to check in my Stored procedure if the information passed is null or empty so I can decided to insert the new value or keep the old. How do I accomplish this please in T-SQL. Thanks in advance.
View 6 Replies View RelatedInsert Empty String Or Null To Sql Db
Jan 12, 2008Hi:
Trying to insert null value into sql table, but not working, if I use:
if (strMyText.Length == 0) command.Parameters.Add("@Text", DBNull.Value); // or using:("@Text", null), or using:("@Text", DBNull) else command.Parameters.AddWithValue("@Text", strMyText);
When I go back to table, I see the value is: 'NULL', has single quotation mark, suppose to be: NULL
Where is the problem?
Thanks a lot.
Jt
Null Or Empty String Use More Space?
Aug 9, 2005Hi all, I have some columns in my database which allows null. I want to know if leaving the field to be NULL or storing an empty string into the field, which will take up more space?? if the field type is varchar(100)
View 5 Replies View RelatedHELP : Empty String To Null Conversion By SQL
Nov 10, 2005Hi folks,
I've have about 100 tables, for some reasons, column values that are originally NULL was inserted as emtpy string. So, I am wondering if I can write JUST ONE SQL (hopefully don't have to specify the field names in the SQL as well) for each table so that all the empty strings will be converted back to NULL.
THANKS JOHN
Referential Integrity With Empty String And ZERO
Jul 7, 2007Hi,
How could I define referential integrity using FK constraint which allow me to have empty string/ZERO number instead of NULL value ?
Thank you
How To Use /Set Option To Set A Variable To Empty String
May 19, 2008
Hi,
I developed an SSIS package and I'm using the dtexec utility to run it. The package has a variable RunDate (datetime) and i want to set this value to "" (empty string) when i try to run this package using the dtexec.
Currently I'm getting an error Argument option not valid.
Thanks in advance
NULL Values Vs Empty String Vs Space
Oct 25, 2006How do I define a field to have the default value = ''. Not NULL but not a space either in SQL Server 2005?
View 10 Replies View RelatedSQL 2012 :: Blank (Empty String) In Primary Key
Apr 29, 2014Can we have blank value in Primary key field? Two fields are chosen as Primary Key for this table but the issue is at any given time one value will be blank when other is populated. Does sql server still order the records based on these keys? (Clustered index). Or should I just go about adding ID (identity)?
View 1 Replies View RelatedBcp Is Inserting Blank Space For Empty String
Jul 23, 2005I'm doing a bcp out of a table to a file. Some of the fields in arecord may have an empty string.When I bcp out to the file and examine it, the fields that have anempty string in the database now show up in the file as having oneblank character.Why is bcp doing this? I don't want the blank character in my output.Thanks,Eric
View 4 Replies View RelatedWhy CodeBase Property Of CurrentAssembly In CLR SP Is Empty String?
Jan 15, 2007Where is SQL storing and caching the assemblies used by CLR SP?
I want to read a mapped configuration file for that assembly but it seems that assemblies are not read form their initial location.
Is there a way to use configuration files for the assemblies used by CLR SPs? (I don't want to use a static string to point to a file on the disk)
Empty String Problem In Joined Data
Feb 13, 2008Hello,
I have a problem where I need to include data from a table where one of the joined columns can contain empty strings. The emptry string column and its related columns need to be included in the results of the query.
The Join looks like this:
SalesData.dbo.tbl_CYProcessedSales ps
INNER JOIN SalesData.dbo.vw_Product_CYProcessedSalesXref xr
ON ps.Prod = xr.Prod
AND ps.Acct = xr.AcctCode
INNER JOIN TxnRptg.dbo.vw_NetNewRevenueUnion nn
ON xr.BillingType = nn.BillingType
AND xr.ProdGroup = nn.Product
AND xr.AcctCode = nn.AcctCode
The problem occurs on the xr.BillingType = nn.BillingType portion of the join. the nn.BillingType can contain empty strings. I've tried a LEFT join to vw_NetNewRevenueUnion, but this has not worked.
In vw_NetNewRevenueUnion, BillingType becomes an empty string within a CASE statement if BillingType is NULL. I've thought about using something like 'All' in the ELSE condition, and doing the same in the vw_Product_CYProcessedSales view just so I don't have to deal with an empty string.
If I were not to do that, is there some way I can handle the empty string issue within the join so that empty string records will be included in the query results?
Thank you for your help!
cdun2
Select Returning Nbsp Instead Of An Empty String
May 15, 2008
I am using a SQLDataSource with the following Select query. If the "spouse" values are not in the database, I get the HTML non-breaking-space character back, rather than an empty string.
SelectCommand="select applicant_id, (applicant_last_name + ', ' + applicant_first_name) as applicant_name, CONVERT(varchar(10), applicant_dob, 101) as applicant_dob, applicant_ssn, (spouse_last + ', ' + spouse_first) as spouse_name, CONVERT(varchar(10), spouse_dob, 101) as spouse_dob, spouse_ssn from applicant where applicant_last_name like '%'+@last_name+'%' order by applicant_last_name"
Here is the relevant code-behind:
TextBox tb = (TextBox)formView.FindControl("SpouseName");
tb.Text = e.Item.Cells[4].Text;
DatePicker dp = (DatePicker)formView.FindControl("SpouseDateOfBirth");
if (e.Item.Cells[5].Text.Length > 0)
{
try // this is a try/catch because nbsp is not parsed as a date
{
dp.DateValue = DateTime.Parse(e.Item.Cells[5].Text);
}
catch
{
dp.txtDate.Text = "";
}
}
tb = (TextBox)formView.FindControl("SpouseSocialSecurityNumber");
tb.Text = e.Item.Cells.Text;
Thoughts?
Todd
Trim Empty Spaces From Columns Inserted Into Table
Sep 22, 2014I am inserting the following columns from one table to another,
SalesOrder,Customer,CustomerPoNumber,ShippingInstrs,CustomerName,ShipAddress1,ShipAddress2,ShipAddress3
How do I make sure that all empty spaces are trimmed.
Inserting Empty Values Into NOT NULL Columns Via ODBC
Jul 20, 2005We are writing a C application that is using ODBC to insert recordsinto a database. We have a NOT NULL column that can legitimately havean empty value, i.e. we know the value and it is empty (i.e. a zerolength string).We are using SQLBindParameter() to bind a variable to theparameterized insert statement <<in the form: INSERT INTO table VALUES(?, ?, ?)>>. We are using SQLExecDirect() to process the SQL.We are running into the problem where ODBC is converts the empty (zerolength) string into a NULL value and this errors due to the fact thatthe column is defined as NOT NULL.We do not want to redefine the column as NULL, becasue myunderstanding of the correct usage of a NULL column is to indicatethat a value is unknown or meaningless... in our case we know thevalue (it is empty) and an empty value has meaning within ourapplication.I'm sure that this issue has been seen and address thousands(millions?) of times... any guidance would be appreciated.
View 2 Replies View RelatedDetect And Convert An Empty String (from Textbox) To Null?
Jun 9, 2007Hi all,I have this code that I use for my Search function:SELECT DISTINCT [MUSIC_TITLE], [MUSIC_ORIGINAL_SINGER], [MUSIC_PERFORMER]FROM t_musicWHERE (@MUSIC_TITLE IS NULL OR [MUSIC_TITLE] LIKE '%' + @MUSIC_TITLE + '%') AND (@MUSIC_ARTIST IS NULL OR ([MUSIC_ORIGINAL_SINGER] LIKE '%' + @MUSIC_ARTIST + '%' OR [MUSIC_PERFORMER] LIKE '%' + @MUSIC_ARTIST + '%')) But right now if I don't enter anything in one of the textbox (2 have two, either of them can be left empty), the above Sql statement doesn't return anything since ADO.NET can't tell an empty textbox and treat it at null... So anyone please help me how to detect an empty textbox and set that to null for the above SQL statement to work. (It work in SQL Manager Studio, when I set one of the parameter = null.) I'm very new to ASP.NET stuffs, so if someone can help me to convert that function to code-behind and help me to call it from the .aspx, that would be even better as I don't want to put the code in my .aspx page... But I'm not quite there yet. Thank you all,Kenny.
View 19 Replies View RelatedConverting Empty String To Null When Inserting/updating
Mar 10, 2006I am using the following query to calculate date differences:select ..........DATEDIFF(d, recruitment_advertising.advertising_date, career_details.RTS_Email AS Datetime) AS Ad_to_RTS_days FROM .....I have stored all my dates as NVARCHAR because of the issues with localization.If the value is an empty String my output is eg: -38700. which is way off and incorrect. Some of the values in my table are NULL and they produce the correct result.Is there a T-SQL statement to replace empy Strings with the NULL value in my tables.I'd like to use it as a trigger when inserting or updating to convert empty strings to NULLbefore the values are inserted.Thanks guys.
View 1 Replies View Related