Display Data By Moving Nulls
Dec 5, 2006
Hi!
I have data in the following manner:
period course1 course2
4 NULL Eng
4 NULL Math
4 Phys NULL
4 Chem NULL
Is there any way I can show this data this way (the order is irrelevant - row1 can be joined with row3 or row4)?
period course1 course2
4 Phys Eng
4 Chem Math
4 Phys Eng
4 Chem Math
Basically, I want to be able to remove nulls.
Please let me know if any of you have come across such an issue.
Thanks so much!
-Parul
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Sep 25, 2015
I have been away from SQL for a couple of months, and for the life of me cannot work out a simple way to do what i want to do.
select bu1.name,bu2.name, bu3.name, bu4.name, bu5.name
from
Sale
INNER JOIN
Sysuser on sale.userid = sysuser.userid
INNER JOIN businessunitBU1
on BU1.Businessunitid = sysuser.businessunitid
left JOIN businessunitBU2
on BU2.Businessunitid = bu1.parentbusinessunitid
left JOIN businessunitBU3
on BU3.Businessunitid = bu2.parentbusinessunitid
left JOIN businessunitBU4
on BU4.Businessunitid = bu3.parentbusinessunitid
left JOIN businessunitBU5
on BU5.Businessunitid = bu4.parentbusinessunitid
So effectively i am trying to go through the hierarchy to find all the levels. Unforunately not every entry has the same amount of levels.
So its coming out like this.....
Bu1 BU2 BU3 BU4 BU5
L5 L4 L3 L2 L1
L4 L3 L2 L1
L3 L2 L1
L5 L4 L3 L2 L1
So whats the easiest way to move everything along to fill in the blanks, but move the blanks to the end - so it would be more like this:
Bu1 BU2 BU3 BU4 BU5
L5 L4 L3 L2 L1
L4 L3 L2 L1
L3 L2 L1
L5 L4 L3 L2 L1
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Apr 30, 2015
I would like to display a portion of report where there is data or no data
There is data subreport display
Product Name Latex Gloves
Product ID
xxxx5678
There NO data in the subReport
Product Name
Product ID
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May 16, 2006
When i do a select on my emplee table for rows with null idCompany i dont get any records
I then try to modify the table to not allow a null idCompany and i get this error message:
'Employee (aMgmt)' table
- Unable to modify table.
Cannot insert the value NULL into column 'idCompany', table 'D2.aMgmt.Tmp_Employee'; column does not allow nulls. INSERT fails.
The statement has been terminated.
This sux
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Dec 1, 2014
I have a table called "alert" and in this table, for each columns there are data as 1 , or 0 or NULL. how do I write a query to just give me data's with "1" in them not the NULLS or 0?
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Mar 15, 2006
Hello..I was wondering if anyone out there could tell me how they deal withNULL values in a data warehouse? I am looking to implement a warehousein SQL 2005 and have some fields which will have NULL values and Iwould like some further ideas on how to deal with them. At my last jobin dealing with Oracle we were just going to leave the fields NULL, butin SQL how would you best recommend cleaning the data? I greatlyappreicate your help and look forward to your reponses.Thank you
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Oct 19, 2007
Hi,
With DTS, the default behavior is to import blanks ("") in a data file as nulls in the table.
However, in SSIS, the default behavior is to import blanks as blanks.
I need to ensure that the packages I'm migrating import the data in the exact same way. I am wondering what is the easiest way to convert blanks to nulls?
Right now I'm using a script to convert the blanks to nulls before they are written to the table, but just wondering if there's an easier way.
Thanks
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Feb 17, 2008
is there an elegant way to use one equals sign in a where clause that returns true when both arguments are null, and returns true when neither is null but both are equal and returns false when only one is null?
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Feb 20, 2008
Hello,
I have a datareader and whenever the value that it is suppose to display in the Label is empty because there is no Data Entered Yet I gives me and error and I have the event set ONLOAD so the page with no data to disply does not load.
So the Ranking.text = a select statement i have, but when I dont have any data into the SQL database there is nothing to SELECT so the program gives of an error.
Can someone help me with this. Thank you.
Here is the code: Dim objReader As SqlDataReader
conn.Open()
objReader = comm.ExecuteReader()
objReader.Read()lblRanking.Text = objReader("Rating")
objReader.Close()
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Sep 25, 2013
Our database stores vehicle data in one table, but 3 different types of data are stored in the one table. The table contains all the columns for all 3 types so when you query the table you get at least 3 rows back with null values for all the columns that don't apply to that record. The data is imported to the table when it's updates so there's a possibility that they're updated at different times so they have a different BATCH like:
BATCH TYPE ID RATING INSURANCE SAFETY
300 SAFE 123 NULL NULL A
300 INS 123 NULL YES NULL
250 RATE 123 A NULL NULL
What I'd like returned is:
ID, RATING, INSURANCE, SAFETY
123 A YES A
I'm trying to do a case statement to pull the data down, but I keep ending up with multiple rows because of all the nulls. I tried doing a SUM of the case statement with an ISNULL(SAFETY,0) but I can't SUM char values. I can probably do this with 3 temp tables to load the data that I want for each TYPE into them and then select and join them together, but is there a better way to do this?
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Sep 26, 2013
I'm inserting data from a c# webservice into a table via a stored procedure, but I get a Column does not allow nulls on the @alert_id column/field. It is set as int and allow nulls is not ticked.
Here's the sql:
USE [aren]
GO
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
ALTER PROCEDURE [aren1002].[ArenAlertInsert]
[Code] ....
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Feb 21, 2008
In OO programming, data references, such as pointers in C++ or objects in C#. If the reference is null, it points to no object, or to 0x000000, thus the "referenced" object is non existent and the "object" takes up no RAM.
I know pointers are not the same as Database values, but what I'm interested in knowing is, on the bits and bytes level, what is a "NULL" and how much space does it take up, as much as is the field? Or just one byte? and when a NULL is replaced does that cause a shifting in the data of the database page or does the new data simply replace the null?
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Dec 12, 2007
I'll preface this by saying I'm pretty new to SSIS; I'm coming over from Coldfusion and don't have much DTS experience to draw from either. That said....
I've got a package that I run to migrate data from a bunch of older databases into a "flat" new schema. The new schema is not identical to the old, in other words, so it's not a simple mapping of existing columns. All the data flow tasks have finally gotten to a working state, with much trial-and-error. Now, suddenly one of the tasks is throwing this error:
"...Cannot insert the value NULL into column 'the_id', table 'the_table'; column does not allow nulls. INSERT fails."
The column is an identity column in the new table; it is NOT NULL as it is the primary key. I've triple-checked that identity is on. Basically it's generated anew each time this package is run. In the data flow task, mappings are set to ignore for this column; also, Keep identity and Keep nulls are on (although since this column is not in the source I can't see how this affects anything.)
(***For anyone wondering why in the heck I'd need this column at all, offhand I can't recall if later tasks use it or not...I'm actually wondering if it's even needed in this read-only table if it's not used as a foreign key somewhere else...however, I'd like to figure out this issue regardless... )
I've had a hard time finding anyone with the same problem out there...usually people with NULL issues simply are trying to insert into a NOT NULL column. The big difference here is that the column is identity.
Thanks,
Rick
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May 15, 2008
I have two SSIS packages that import from the same flat file into the same SQL 2005 table. I have one flat file connection (to a comma delimited file) and one OLE DB connection (to a SQL 2005 Database). Both packages use these same two Connection Managers. The SQL table allows NULL values for all fields. The flat file has "empty values" (i.e., ,"", ) for certain columns.
The first package uses the Data Flow Task with the "Keep nulls" property of the OLE DB Destination Editor unchecked. The columns in the source and destination are identically named thus the mapping is automatically assigned and is mapped based on ordinal position (which is equivalent to the mapping using Bulk Insert). When this task is executed no null values are inserted into the SQL table for the "empty values" from the flat file. Empty string values are inserted instead of NULL.
The second package uses the Bulk Insert Task with the "KeepNulls" property for the task (shown in the Properties pane when the task in selected in the Control Flow window) set to "False". When the task is executed NULL values are inserted into the SQL table for the "empty values" from the flat file.
So using the Data Flow Task " " (i.e., blank) is inserted. Using the Bulk Insert Task NULL is inserted (i.e., nothing is inserted, the field is skipped, the value for the record is omitted).
I want to have the exact same behavior on my data in the Bulk Insert Task as I do with the Data Flow Task.
Using the Bulk Insert Task, what must I do to have the Empty String values inserted into the SQL table where there is an "empty value" in the flat file? Why & how does this occur automatically in the Data Flow Task?
From a SQL Profile Trace comparison of the two methods I do not see where the syntax of the insert command nor the statements for the preceeding captured steps has dictated this change in the behavior of the inserted "" value for the recordset. Please help me understand what is going on here and how to accomplish this using the Bulk Insert Task.
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Oct 27, 2015
I have two tables one list changes of hospital ward and one lists changes of consultant doctor. These can change independently ie a ward change can occur without a consultant change and vice versa. I want to summarise these changes to give the status at each date_serial value.
create table #temp_ward_stay(date_serial bigint,ward_id varchar(10))
;
insert into #temp_ward_stay
values
(201501021200,'W1'),(201501031201,'W2'),(201501091200,'W3'),(201501161200,'W4'),(201501161201,'W5')(201501271200,'W3'),(201502101200,'W5')
;
create table #temp_consultant_episode(
date_serial bigint,
consultant_id varchar(10))
;
insert into #temp_consultant_episode values
(201501021200,'C1'),(201501031200,'C2'),(201501031201,'C3'),(201501091201,'C4'),
(201501121200,'C3'),(201501301200,'C6'),(201502111200,'C6'),(201502111201,'C7')
;
If I use:
select date_serial,consultant_id,null as ward_id from #temp_consultant_episode
union
select date_serial,null as consultant_id,ward_id from #temp_ward_stay
I get:
date_serial ward_id consultant_id
-------------------- ---------- -------------
201501021200 NULL C1
201501021200 W1 NULL
201501031200 NULL C2
201501031201 NULL C3
201501031201 W2 NULL
201501091200 W3 NULL
201501091201 NULL C4
201501121200 NULL C3
201501161200 W4 NULL
[code].....
whereas what I actually want is:
date_serialward_idconsultant_id
201501021200W1C1
201501031200W1C2
201501031201W2C3
201501091200W3C3
201501091201W3C4
201501121200W3C3
201501161200W4C3
201501161201W5C3
[code].....
I can see how I could remove the nulls where the date_serial values are the same:
select ce.date_serial,ward_id,consultant_id from #temp_consultant_episode ce
join #temp_ward_stay ws
on ce.date_serial=ws.date_serial
but I can't see how to move forward from here.
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May 8, 2008
Hello,
I have a simple question. Is it at all possible to replace columns which has nulls with blank spaces for a float data type column.
The columns has null values( written)) in it in some rows and has numbers in other rows . I want to remove nulls before copying it to another file.
Thanks
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Jul 9, 2007
I am trying to display hirearchical data using data region. For eg. the first level will be a list of customer names. The second level will be a list of Invoices under each customer. The third level will be a list of product names that were sold under each invoice.
I used a list for the data region and in each hireachy, there is a textbox in each list to display the data. I am trying to associate each data region with a datatable (I will provide the logic to populate the datatable with appropiate data). I do not want the ReportViewer to interact directly with a database because this is a 3 tier design and I am using the ReportViewer in local mode. I couldn't find any example of these. Can anybody help? Also I would like to see an example of the .rdlc file in these situation. Thanks very much.
Kam
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Oct 23, 2007
I have 2 databases on one server that I want to consolidate into one database. I'm just learning SQL Server 2005. What is the easiest way to move my 3 tables from one database to a new one on the same server? Do I have use SSIS to do it, or can a simple query be written? I'm new so please be a little detailed in your answer. Thanks in advance for any comments.
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Aug 3, 2000
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Feb 16, 1999
Hello,
I'm having problems using the update wizard to move data from 6.5 sql server
(on another machine) to a 7.0 server sitting out a PDC. The wizard dies (and
passes me over to Dr Watson) when login fails for the 6.5 machine.
I am sure I have the right pasword (I've tried variations as well) and have updated the
hosts file so that the machine is known by it's name (I think one of the FAQ answers
suggested that)....
What other possibilities are there for moving the data ? I looked at bcp, but that seems
a rather long winded route (the data contains time stamps so I suppose there will be
a problem reading them in on the 7.0 side) ...
Many Thanks,
Paul.
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Sep 4, 1998
Hi all!
What is the best way to move selected data from one database to another using SQL 6.5?
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Sep 6, 2001
what would be the best way to move 59 million rows from one table to another. The table has no constraint, but has has three indexes. The table has only four columns. It will be going from SQL 2000 to SQL 2000.
Thank You
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Dec 5, 2006
Hi all,
I want to transfer all the data from one of my Ms Access tables to SQL Server table, using C#.
How can i do it?
Thanks in advance,
J.Jasmeeta.
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Feb 2, 2007
Hi all,
I have an Ms Access table and a MsSql table. I am running a windows service in my localhost where the data from Ms access table will be copied to Ms sql table for every one minute. Before copying the data, the Ms sql table will be flushed inorder to avoid replicates.
Now i want to copy only the latest records updated within 1 min in Ms access table, to Ms sql table.
My Ms access table
Name Id
jas 100
meena 101
viji 102
My Ms sql table
Name Id
jas 100
meena 101
viji 102
After 1 min, say 2 records are added to my Ms access table like,
Name Id
jas 100
meena 101
viji 102
bhuvana 103
pinky 104
Now i want to insert only the latest records from Ms access to Ms sql like,
Name Id
jas 100
meena 101
viji 102
bhuvana 103
pinky 104
how to do this? thanx in advance.
Jasmeeta.
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Oct 10, 2007
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Thanks,
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Jan 5, 2006
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Thanks
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Jul 5, 2002
Our current sql server 7 is overloaded and I have been asked to move some data to a new box which is to be acquired. My query is as follows:
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2. Is there any kind of monitoring agent available to see how heavily loaded the server is and what load each application/database is creating.
3. And how do I go about moving data from one to the other.
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Thanks
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May 27, 1999
Hi all,
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Specifically, we are inserting rows into a table that are stamped with an insert date and an expiry date. When the expiry date is reached, we want to move the applicable row from the original table to an identically structured table.
Ideally, we want this to be a script that is run daily.
Does anyone have any ideas or examples that we could use.
Any help is much appreciated!
Tim
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Oct 15, 2001
What is the best method to move 1.500.000 rows from one table to another ??
Thanks,
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Nov 10, 2004
I imported a little over 9 million records into my database without "cleaning" the data.
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Oct 28, 2013
I have a server that will be going off-line in a couple of weeks, and in the meantime, I need to backup everything and move it to a new location. This involves a lot of data and databases.
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