I'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
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 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 RelatedHi 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
How 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 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 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?
Hello,I developed a win32 .exe CGI that connects to a clustered SQLServer toreport some data.The software is written with Borland C++Builder.This is the oledb string:Name=Provider=SQLOLEDB;Password=xxx;Persist Security Info=True;UserID=xxxx;Data Source=xxxxx;Initial Catalog=xxxxx;NetworkLibrary=dbmssocnIt suddendly stopped working on my customer network, so I made sometest and I verivied that the problem is on the connection withSQLServer: my test program just opens a connection, closes it andexits, reporting in a log file if the open was successful or failed.If I run the program locally, just launching it, no problem, it works.I can run it mutilple time continuosly and is connects every time.If I run the program through my webserver, as a CGI that's how it issupposed to work (http:\localhostscriptsconnect.exe), it connectsthe first time, and then I have to wait 40 seconds to connect againsuccessfully, or it fails.If I try against MY sqlserver on my laptop or on my network no 40 secproblems, but on my customer network, with THEIR SQLServer , if I tryto connect from their webserver, or from my laptop webserver, I havethis 40sec problem.I analyzed the network traffic, and I discovered that when I run mytest program locally it originates only TCP/IP packets, and SQLServeranswers only with TCP/IP.But when I use it from the webserver as a CGI, it originates an UDPpacket, then SQL answers with another UDP packet, and then theycommunicate over TCP/IP.This when it works: the second time my program continues to send theUDP packet, but it receives no answer, and fails the communication.I can only say that:- we haven't touched the program for months, and it really stoppedworking suddendly, so I suspect that something in my customer netowrkhas changed- I tried many different OLEDB strings, disabling connection poolingand all the services, calling the SQLServer by name or IP...- the problem can't be related to my program, because now is reallyjust an oledb connection testAnyone have an idea?Thank you very much,Mattia
View 1 Replies View RelatedI am writing an upsert proc that should detect the change in state for a record. The change in state happens when a particular date field (default null) is populated. However, I can not get a record set that detects the changes properly.
Here is an example
set ANSI_NULLS on
go
create table #t1
(
ID int,
DateField datetime
)
create table #t2
(
ID int,
DateField datetime
)
insert into #t1 (ID, DateField) values (1, '7/20/2006')
insert into #t2 (ID, DateFIeld) values (1, null)
select * from #t1 join #t2 on #t1.ID = #t2.ID where #t1.DateField <> #t2.DateField
drop table #t1
drop table #t2
The select should return a record because NULL does not equal '7/20/2006' but it doesn't.
What am I missing?
Thanks in advance.
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 RelatedA stored procedure takes an IN parameter, an INOUT parameter, and returns an OUT parameter. When this stored procedure is defined in SQL Server 2000, the JDBC DatabaseMetadata method getProcedureColumns() returns three rows in the resultset:
one for the IN parameter (COLUMN_TYPE=1)
one for the INOUT parameter (COLUMN_TYPE=2), and
one for OUT parameter (COLUMN_TYPE=5).However, when the same stored procedure is defined in SQL Server 2005 (SP2), the getProcedureColumns() method returns only two rows in the resultset:
one for the IN parameter (COLUMN_TYPE=1)
one for the INOUT parameter (COLUMN_TYPE=2).No row for the OUT parameter is returned.
jTDS JDBC driver was used for both of the above tests. When the Microsoft JDBC Driver for 2005 was used against SQL Server 2005, the same behavior (only two rows in the resultset) was observed.
Has someone else run into such a problem? Is this a bug in SQL Server 2005 because the same jTDS driver works as expected against SQL Server 2000 but not against SQL Server 2005? Any feedback will be appreciated.
Thanks,
-- Damodar Periwal
need a clue about how to migrate the data from an Oracle applications 11.03 and underlying Oracle 8.05 database to navision 4.0 running sql server 2000
tia
I have a query that is behaving a little a weird. here is the example:
i have 1 table in this table i have 2 columns wich are date and time
DATE_DEBUT_PERIODE_FISCALE DATE_FIN_PERIODE_FISCALE
------------------------------ ---------------------------
1/27/1997 2/27/1997
1/1/2005 2/6/2005
here is my query:
BEGIN
declare @datefin_flag datetime, @strip datetime
SELECT @strip = dateadd(d,datediff(d,0,getdate()),0)
SELECT @datefin_flag = DATE_FIN_PERIODE_FISCALE FROM DM_LKP_CALENDRIER_PERIODE_F
WHERE DATE_DEBUT_PERIODE_FISCALE < @strip AND DATE_FIN_PERIODE_FISCALE = @strip
--select @datefin_flag
--select @strip
IF(@datefin_flag != @strip)
RAISERROR('You cant run this',16,1)
END
Well this Query should return the raiserror it returns completes successfuly
since todays date is not the same as the date in the database.
if you select @datefin_flag it returns NULL and if you select @strip it brings back todays date how can NULL be equal to to todays date assuming that todays date is equal to NULL. ?
Hello,
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.
Note the code below, running on the version noted.
I just found this today, figured I'd share. Not sure if it's a known bug or a "special" feature. The only difference between the two queries is the 3rd line, everything else is the same. Notice that the sort order changes, yet no errors or warnings are given. I assume that the table aliases are ignored for the order by, unless there are duplicate column names in the results.
I abstracted this from a bug I discovered in one of my apps today, where I have sales reps assigned to their clients with start and end dates. A while back, a developer asked me to format the dates without the time portion, and when I did so, I introduced the problem. I resolved it temporarily by ordering by convert(datetime, startdate) but I found it strange that the column alias match overrides the table alias attempted match in the order by. Another way to get around this would be to change the column aliases, then the sort order would be as desired, but I didn't want to have to change the app code for something so trivial.
My apologies if this is a duplicate.
@@version = Microsoft SQL Server 2005 - 9.00.3054.00 (X64) Mar 23 2007 18:41:50 Copyright (c) 1988-2005 Microsoft Corporation Standard Edition (64-bit) on Windows NT 5.2 (Build 3790: Service Pack 2)
select convert(varchar(10), table_alias.startdate, 101) as startdate,
convert(varchar(10), table_alias.enddate, 101) as enddate
from
(
select convert(datetime, dateadd(mm, -4, getdate()-1)) as startdate, convert(datetime, dateadd(mm, -4, getdate())) as enddate
union
select convert(datetime, dateadd(mm, -3, getdate()-1)) as startdate, convert(datetime, dateadd(mm, -3, getdate())) as enddate
union
select convert(datetime, dateadd(mm, -2, getdate()-1)) as startdate, convert(datetime, dateadd(mm, -2, getdate())) as enddate
union
select convert(datetime, dateadd(mm, -1, getdate()-1)) as startdate, convert(datetime, dateadd(mm, -1, getdate())) as enddate
union
select convert(datetime, getdate()-1) as startdate, convert(datetime, getdate()) as enddate
) as table_alias
order by table_alias.startdate
select convert(varchar(10), table_alias.startdate, 101) as startdate,
convert(varchar(10), table_alias.enddate, 101) as enddate,
table_alias.startdate, table_alias.enddate
from
(
select convert(datetime, dateadd(mm, -4, getdate()-1)) as startdate, convert(datetime, dateadd(mm, -4, getdate())) as enddate
union
select convert(datetime, dateadd(mm, -3, getdate()-1)) as startdate, convert(datetime, dateadd(mm, -3, getdate())) as enddate
union
select convert(datetime, dateadd(mm, -2, getdate()-1)) as startdate, convert(datetime, dateadd(mm, -2, getdate())) as enddate
union
select convert(datetime, dateadd(mm, -1, getdate()-1)) as startdate, convert(datetime, dateadd(mm, -1, getdate())) as enddate
union
select convert(datetime, getdate()-1) as startdate, convert(datetime, getdate()) as enddate
) as table_alias
order by table_alias.startdate
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?
************* Edited by moderator Adec ***************
Inserted missing < code></ code> tags. Always include such
tags when including code in your postings. Don't force the
moderators to do this for you. Many readers disregard
postings without the code tags.
**************************************************
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.
the password of sa account is empt
I use "sqlcmd -S servername -U sa " command but failed
any suggestions?
thanks
Hello,I'm a beginner in SQL and I have been searching through the SQL Cookbook and Google but I can't seem to find an example of what I want to do. I want to create a report that will return names and emails using two of my tables. I want to use the email in my primary table in the select but if it is null or empty I want to replace it with an email from my secondary table. Below is what I would like to do but I got a syntax error with it in SQL Server 2000. SELECT MemberID As ID, MemberFirstName As FirstName, MemberLastName As LastName, (IF MemberEmail = '' THEN SELECT TOP 1 OtherEmail FROM OtherTable WHERE OtherID = MemberID) As EmailFROM PrimaryTableThanks for your time.Jason
View 8 Replies View Relateddeclare @user varchar(30) = ''
if(@user is not null or @user <> '')
BEGIN
print 'I am not empty'
END
ELSE
BEGIN
print 'I am empty'
ENd
The output should be 'i am empty' but when i execute this i am getting ' i am not empty'. even i did browse through but i don't find the difference in my logic.
I have always (or at least intended to) treat NULL and empty strings separately in my SQL querying history. Now I have run across something that mystifies me (but probably shouldn't) that I would like an explanation for.
Consider this bit o' code:
DECLARE @ORDER CHAR(10)
SET @ORDER=
(
SELECT NULL
)
IF @ORDER <> ''
PRINT 'Not an empty string'
IF @ORDER IS NULL
PRINT 'It is NULL'
Run this and you will get:
It is NULL
I was expecting:
Not an empty string
It is NULL
Why is NULL not passing the 'not an empty string' test? In other words, how does NULL = '' ? Is NULL cast to an empty string for this comparison?
I am using the below query to calculate column values. But I need to return zero when a column values is empty or null.
select [Funding] [Fundings],
[Original] AS [Originals],
[Variance] = SUM([Previous_Year]-[Current_Year]),
[SumValue] = SUM([CurrentYear]/4),
[ActualValue] = SUM([Variance] * 0.75),
[FinanceYear],
[New Value] = SUM([Previous_Year]+[Current_Year])
from Finance
GROUP BY [Original], [FinanceYear]