Hi 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 RepliesHow 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 RelatedHi,
I am trying to do this:
UPDATE Users SET uniqueurl = replaceAllEmptySpacesInUniqueURL('uniqueurl')
What would be the syntax.
Any help appreciated.
Thanks
I'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 RelatedIn sql server 2000 - our QA pointed out that his testing for empty strings returned 200 + rows but that when he clicked in the field there were obviously a space there. This issue came up because of the script I created to replace and earlier one that queried on empty strings instead of datalength and the earlier script always reported that it had updated x number of rows regardless of how many times it was run on the same database.
QA query based on the earlier script:
Select * from StringTable
WHERE (LongString = '' OR LongString IS NULL)
My script:
The fields are nvarchars in the newer database but older version of the database had varchars. I had created a script to replace empty strings as follows:
-- if LongString column is varchar - run varchar update else nvarchar update
If exists (Select * from sysobjects o
inner join syscolumns c on c.id = o.id
where c.name = 'LongString' and o.name = 'StringTable' and c.xtype = 167) begin
-- update varchar LongString
UPDATE StringTable
SET LongString = char(32)
-- Select * from StringTable
WHERE ((DATALENGTH(LongString ) < 1) OR LongString IS NULL)
END
Else Begin
-- update nvarchar LongString
UPDATE StringTable
SET LongString = char(32)
-- Select * from StringTable
WHERE ((DATALENGTH(LongString ) < 2) OR LongString IS NULL)
END
If exists (Select * from sysobjects o
inner join syscolumns c on c.id = o.id
where c.name = 'ShortString' and o.name = 'StringTable' and c.xtype = 167) begin
UPDATE StringTable
SET ShortString= char(32)
-- Select * from StringTable
WHERE ((DATALENGTH(ShortString) < 1) OR ShortString IS NULL)
END
Else Begin
-- update nvarchar ShortString
UPDATE StringTable
SET ShortString= char(32)
-- Select * from StringTable
WHERE ((DATALENGTH(ShortString) < 2) OR ShortString IS NULL)
END
My method for checking for datalength appears to work correctly why doesn't the QA script? I thought it might have to do with the nvarchar used in the table but I changed the column to a varchar and still has the same issue.
Thanks
example
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
I 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 RelatedHi:
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
Hi 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
Hi 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 RelatedI 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 RelatedI'd like to have Oracle's empty string behavior in SQLServer 2k5. Oracle treats an empty string as NULL's.
In PL/SQL can do:
SELECT * FROM TABLE WHERE TABLE.FIELD IS NULL
... and it'd return rows containing NULL's as well as empty strings.
Can this be done? I couldn't find a setting for it.
Thanx
Peter
i have a trigger on a table right now... when fields are inserted, theres a text field inserted and i want to check if that text field = '' (the empty string, not NULL) and if it doesn't equal that, then perform some row updates on other tables, but if it is empty, to not do anything else in the trigger... right now i have this:
Code:
IF ((SELECT Note FROM XATPoDetail WHERE ReqNbr = (SELECT ReqNbr FROM Inserted)) LIKE(''))
Note is the text field, XATPoDetail is the table where its being inserted into. I had to do the select FROM the table because it wouldn't let me select a text data type from the "Inserted" virtual table
but it tells me me "Error 279: The text, ntext, and image data types are invalid in this subquery or aggregate expression"
thanks
i have a trigger on a table right now... when fields are inserted, theres a text field inserted and i want to check if that text field = '' (the empty string, not NULL) and if it doesn't equal that, then perform some row updates on other tables, but if it is empty, to not do anything else in the trigger... right now i have this:
IF ((SELECT Note FROM XATPoDetail WHERE ReqNbr = (SELECT ReqNbr FROM Inserted)) LIKE(''))
Note is the text field, XATPoDetail is the table where its being inserted into. I had to do the select FROM the table because it wouldn't let me select a text data type from the "Inserted" virtual table
but it tells me me "Error 279: The text, ntext, and image data types are invalid in this subquery or aggregate expression"
thanks
Ok.. so I have a fixed position data feed. I read the file in as just whole rows initially, process a specific position and evaluate a conditional split to determine direction of the file for proper processing (file contains multiple recors with different layouts). This all works fine. I then use the derived column feature to process all the columns.
Most of the columns are as simple as SUBSTRING(RecordData,1,10) for example to get the first column. This all works for string data. I then have a column that is a date field. The problem occurs that the code SUBSTRING(RecordData,20,10) returns either a date or empty set of data if no date was in the original file. When this gets sent to the OLEDB connection (SQL Server 2005) into the date field it fails. If the record has a date it works, but if it is empty it fails the insert.
I tried to replace empty strings with NULLs with this code. REPLACE(TRIM(SUBSTRING(RecordData,20,10)),"",NULL(DT_WSTR,10)). This does not work. So my question is how do I bring a date field from a fixed flat file into a SQL datetime field using a derived column? More specifically is how do I set it to NULL if its empty data? When I use the above code it inserts all the rows from the file, but it sets all rows to NULL not just the empty ones.
Thanks.
In my source table, I have columns FirstName and LastName, both of datatype nvarchar. In my dataflow, I created two new derived columns mapped to these two columns. When pushing data to the source, I noticed that the FirstName column had a value of NULL while LastName was just an empty string (for rows that did not have any value).
My question is, why my source table column FirstName is showing a NULL value when the derived column datatype is string and the source is string? It should just be showing an empty string right?
Hi,
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
Hi,
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?
hi,my structure table in database:Amount float(53) not null default 0when i try to run his script:alter table ABC alter column Amount float(53) nullit can only set the Amount to allow null, but can't set the defaultvalue to empty.anyone know how to set the field to allow null and default set toempty, no value.thanks
View 5 Replies View RelatedHello
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
Hi
I have datacloum called 'code'. When I use @imglink+''+code+''+'.jpg' as [main-image-url],'in my stored procedure. I should get the folowing
http://www.batterymasters.co.uk/ImageResizeCache/productImages/Pack/ACCFUFN076360A.jpg
But I am getting like the one below
http://www.batterymasters.co.uk/ImageResizeCache/productImages/Pack/AABFUFN076360A. jpg
So, some of them are fine but most of them seperated by blank space. I thing the datacolum 'code' has value follwed by empty string like below
'ABFUFN076360A '
SO HOW DO I REMOVE EMPTY STRING AND GET ONLY 'ABFUFN076360A' instead of 'ABFUFN076360A ' in my STORED PROCEDURE.
Please help
I want to add some spaces on the starting feild value. Please see the below example
" " & Fields!Name.Value
This is working on my BIDS. But the spaces are removed automatically when I deployed the report to the report manager. What should be the problem.
Hello,
After the "DAYS" column, some fields are coming null. We don't want it to come null. Beside this, i.e; in the "MONDAY"column, the same "NAMESURNAME" is coming more then one. How can I do the grouping by "NAMESURNAME" ?
MachType DayPeriod Monday Tuesday Wednesday Thursday Friday Saturday
Negative- || NIGHT || NULL || CAN AK || NULL || FİRDEVS ATEŞ || NULL || NULL
Negative- || NIGHT || NULL || NULL || CEM TEK || NULL || NULL || NULL
Negative- || NIGHT || NULL || NULL || NULL || FİRDEVS ATEŞ || MÜK HAK || NULL
Negative- || NIGHT || NULL || CAN AK || CEM TEK || FİRDEVS ATEŞ || NULL || NULL
Negative- || NIGHT || NULL || NULL || NULL || NULL || ÖMER CA || NULL
select MachineType,DAYS,
CASE WHEN DIALYSISDAY= 'MONDAY'THEN NAMESURNAME END AS MONDAY,
CASE WHEN DIALYSISDAY= 'TUESDAY' THEN NAMESURNAME END AS TUESDAY,
CASE WHEN DIALYSISDAY= 'WEDNESDAY' THEN NAMESURNAME END AS WEDNESDAY,
CASE WHEN DIALYSISDAY= 'THURSDAY' THEN NAMESURNAME END AS THURSDAY,
CASE WHEN DIALYSISDAY= 'FRIDAY' THEN NAMESURNAME END AS FRIDAY,
CASE WHEN DIALYSISDAY= 'SATURDAY' THEN NAMESURNAME END AS SATURDAY
from
(SELECT SICK.MACHINETYPE,SICK.NAMESURNAME ,
CASE
WHEN SUBSTRING(DAYPERIOD, DATEPART(dw, SEANCE.SEANCEDATE), 1)= 'N' THEN 'NIGHT' ELSE '' END AS DAYS,
CASE
WHEN SICK.MACHINETYPE= 1 THEN 'Negative-'
WHEN SICK.MACHINETYPE= 2 THEN 'B(+)'
WHEN SICK.MACHINETYPE= 3 THEN 'C(+)B(+)'
WHEN SICK.MACHINETYPE= 4 THEN 'C(+)' END AS MachineType,
CASE
WHEN (DATEPART(dw, SEANCE.SEANCEDATE)) = 1 THEN 'MONDAY'
WHEN (DATEPART(dw, SEANCE.SEANCEDATE)) = 2 THEN 'TUESDAY'
WHEN (DATEPART(dw, SEANCE.SEANCEDATE)) = 3 THEN 'WEDNESDAY'
WHEN (DATEPART(dw, SEANCE.SEANCEDATE)) = 4 THEN 'THURSDAY'
WHEN (DATEPART(dw, SEANCE.SEANCEDATE)) = 5 THEN 'FRIDAY'
WHEN (DATEPART(dw, SEANCE.SEANCEDATE)) = 6 THEN 'SATURDAY' END AS DIALYSISDAY
FROM SEANCE,SICK WHERE SUBSTRING(DAYPERIOD, DATEPART(dw, SEANCE.SEANCEDATE), 1)= 'N' and
SUBSTRING(SICK.EUCLID,1,5)= '18016' AND SEANCEDATEBETWEEN '20080301' AND '20080307'
AND SICK.EUCLID=SEANCE.EUCLID )AS T ORDER BY MachineType
hi,
This field comes from a flat file and sometimes own zero and sometimes own a empty position (after 'EUR'):
2006053000499236000005307700108287457080200408287452006052953990000000010000EUR
2006053000499236004414989200101423426004400501423422006052953990000000010000EUR0
[Column 12] == "0" ? [Column 12] : ?????????
TIA
Hello, I attempt to export a CSV formatted file from SSRS and if the field is not containing data, a space is added to the field.
output:
4, ,1, , , ,
desired output:
4,,1,,,,
I know it is just a property setting. If someone can instruct me on the correct setting to adjust, I would greatly appreciate your help!
I have a main report and a subreport. If the subreport doesn't have any data then I hide it, but the main report still shows the white space of where the subreport would show up if it had data. So how can I get rid of the extra white space in the main report?
Thanks,
Han
I have two grids in two different pages. In that one grid have more number of columns compared another grid. In this case report takes width of the first grid which has more no of columns. So empty sapce in right side of the report is there for second grid. Based on the grid size reprt width should be there. How to avoid empty space in this?
View 8 Replies View RelatedHello,
I have a query that returns the appropriate values I need, however there is one field I'd like to add and utilize but my problem is I only want to use it if it contains data.
If I filter it with IS NOT NULL it returns all the records, including the empty records. The field is simply empty, and doesn't come back as NULL. If I filter it with =' ' , it shows all the records with the empty records only.
I need to do the opposite, be able to filter it only if it's not empty.
Any help would be appreciated.
How can I make empty cells show NULL on my table? Some cells show NULL others won't. Does this mean that they have contents?
The reason being is that, when I use the code
Select *
From Employees
Where JobDescription1 Like '%montly%'
Those with empty jobdescription1 show with the legitimate results.
Any help please?
Thanks!
I've inherited a terribly designed database. When cells in the tables have nothing in them, rather than being NULL, they're just empty. So now I can't use COALESCE...
Is there a way for COALESCE to check if a cell is empty instead of NULL? And if not, is there a way to get around this?
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Well met,
Let's say I have a web form that allows users to insert and update records in a SQL database. Is it better to set empty web controls (textbox, etc.) to DBNull or let it go as an empty string into the database?
Example code:
if (tboxNAME.Text == "")
{
sqlCommand1.Parameters["@NAME"].Value = DBNull.Value;
}
else
{
sqlCommand1.Parameters["@NAME"].Value = tboxNAME.Text;
}
Is the above overkill? It seems like it would be a good idea to set fields which the user empties back to Null rather than an empty string.
Thanks,
-Tony
I added a new field to an existing ETL process which uses SSIS to ingest a CSV file. The new field in the file, Call_Transaction_ID, will not always be populated for every record and so can be NULL or empty for certain records.
Here's the problem:After the file is extracted into a staging table, the Call_Transaction_ID field is showing blank or empty when it has no ID for that particular record. The problem is when I try to then ETL this data into a fact table - I'm trying to set the Call_Transaction_ID field to -1 if it is NULL or empty, however SQL Server doesn't see the field as empty even though there is no value in the field so -1 will NEVER return.
Using a WHERE DATALENGTH(Call_Transaction_ID) = 0 returns 0 records, again because SQL Server doesn't see the field as empty or NULL.
What do I do now to get around this? How do I fix it?
I am working on a cube and I want to hide the results of a calculation if it is zero.
It is an inventory problem based on a transaction pattern. (add plus one to the inventory, add minus one to the inventory).
The sum of those two is zero, but the cube get messed but by thousands of zero.
I found some solutions of displaying 0 for NULL but I want to dispaly NULL (or empty) for 0.