I have a grid with checkbox, where users can select multiple rows and edit at the same time and save it to the DB. Now I have used a Footer Template with textbox in the gridview. So if I want to put similar data's for some particular rows at the same time in the grid, I select the multiple rows and try to put values in the footer template textbox and when I click on save, it saves successfully.
UPDATE QUERY:
"UPDATE [Test] SET [Name]='" + Name + "',[Designation]= '" + Designation + "', [City]= '" + City + "' WHERE EmpID='" + EmpID + "'";
Now here is the challenge, but even when I enter null values in the footer template textbox it has to save with the old values of the rows and not null values. I tried it and couldn't make it happen. So anything like putting the case for each column and mentioning like if null accept the old value and not null accept new value.
Hi, I am trying to use a formView with an update button to update individual records in an sql database. (when i click update it doesnt perform the update and just refreshes the page. ) One of the fields in my records is a NULL - this is also one of the fields that i need to update. When i manually go into the database and enter some data, and then go back to my form, it updates fine, but as soon as i delete the data from the field, it returns to NULL and im back to square one. Any Ideas on how to get around this problem?THanks
Hello everybody, I can't perform an operation apparently very easy: set a field to a NULL value.
This is the db: Microsoft SQL Server 2000 - 8.00.760 (Intel X86) Dec 17 2002 14:22:05 Copyright (c) 1988-2003 Microsoft Corporation Standard Edition on Windows NT 4.0 (Build 1381: Service Pack 6)
This is the table: CREATE TABLE [ProgettoTracce] ( [ID_Progetto] [int] NOT NULL , [MisDifDef] [real] NULL , [MisDifMeas] [real] NULL , [MisDifAna] [real] NULL , [MisDifID] [real] NULL , [MisDifCV] [real] NULL ) ON [PRIMARY] GO
This is qry: UPDATE ProgettoTracce SET MisDifDef = NULL WHERE ID_Progetto = 3444
The qry has been performed with no error. Then I execute SELECT * FROM ProgettoTracce WHERE ID_Progetto = 3444 and I find the value I tried to overwrite with NULL. If I update with 0 (for example) it works. Obviously this happens on the production db, because on the development db the update with NULL works fine. No transaction is called, db options are the same on dbs...
I am attempting to update a sql db using the update and parameter code in VB.net 2003 through MSDE for a web application. It updates changed data OK, but if the textbox value is deleted, the code does not update the sql db. I am new to this, and I'm sure it is something simple. Here is some sample code.
With cmdCategoriesUpdate .Parameters("@Field1Tag").Value = txtFld1.Text .Parameters("@Field2Tag").Value = txtFld2.Text End With cmdCategoriesUpdate.ExecuteNonQuery() SqlConnection1.Close()
I have a pivot transform that pivots a batch type. After the pivot, each batch type has its own row with null values for the other batch types that were pivoted. I want to group two fields and max() the remaining batch types so that the multiple rows are displayed on one row. I tried using the aggregate transform, but since the batch type field is a string, the max() function fails in the package. Is there another transform or can I use the aggragate transform another way so that the max() will work on a string?
I am trying to have a query with the option for items to be null. (So users don't need to fill in the other fields if they choose not too) SELECT Tickets.TicketID, Tickets.UserID, Tickets.SystemID, Tickets.Title, Tickets.Description, Tickets.Software, Tickets.Date, Systems.OS, OS.OS AS OstitleFROM Tickets INNER JOIN Systems ON Tickets.SystemID = Systems.SystemID INNER JOIN OS ON Systems.OS = OS.osIDWHERE (Tickets.Title LIKE '%' + @title + '%') AND (Tickets.Software LIKE '%' + @software + '%') AND (Tickets.Description LIKE '%' + @descrip + '%') AND (Systems.OS = @osid) OR (@osid IS NULL)This works when i give the LIKE values % as a parameter. So they can choose to search by title + software but not description or description and nothing else etc etc etc. The problem is, the osid. If I give it a value it works but if i try to do null, *. or % it always displays every item in the databse ignoring any of the previous like statements. Anyone have an idea?
If txtLink1 happens to be empty, I want @link1 to enter null. The column in the Sql Server allows for nulls, but I get an error message that says no value was supplied. In short, how do I supply a null value using a parameterized query?
#2: For debugging purposes, how can I view what my SQL string looks like (with all the values entered) before it gets submitted to the database? When I view the string, it still contains the placeholder values (@link1) instead of the actual values.
I'm using the query wizard in VB.net to write a query for SQL CE. I want to replace null values with text. I expected the COALESCE function to do this but I get an error message saying its not a valid function. This is a sample.
Select COALESCE(table.Name,'No Name') as Name from table
I am hoping someone could help me understand why this is happening and perhaps a solution. I am using ASP.NET 2.0 with a SQL 2005 database. In code behind, I am performing a query using a parameter as below: sql = "SELECT field_name FROM myTable WHERE (field_name = @P1)" objCommand.Parameters.Add(New SqlParameter("@P1", TextBox1.Text)) The parameter is obtained from TextBox1 which has valid input. However, the value is not in the table. The query should not return ANY results. However, I am getting one single row back with null values for each field requested in the query. The SQL user account for this query has select, insert, and update permissions on the table. The query is simple, no joins, and the table has no null values in any fields. If I perform the exact same query using an account with select only permission on the table, I get what I was expecting, no records. Then if I go back to the previous user account with more permissioins, and I change the query to pass the paramter this way: sql = String.Format("SELECT field_name FROM myTable WHERE (field_name = {0})", TextBox1.Text) I also get NO records retuned using the same criteria. What is going on here? I would prefer to use the parameterized query method with the account having elevated permissions. Is there some command object setting that can prevent the null row from returning? Thanks!
I would like to populate a grid with data from 2 different tables. Table1: [PK]id(int), name(nvarchar), areaID(int) Table2: [PK][FK]areaID(int), areaDescription(nvarchar)
My cerrent query is: SELECT Table1.id, Table1.name, Table2.areaDescription FROM Table1 INNER JOIN Table2 ON Table1.areaID = Table2.areaID
However, sometimes the areaID in Table1 will only be populated at a later stage and therefore will be NULL in Table1. Table2 is used as a lookup table when inserting into Table1. This query therefore ommits any records in Table1 which do not have an areaID. I would like to view ALL records(ones without an areaID as well) as they would be populated in the grid and selected to be updated on web forms because they are incomplete and then subsequently assigned an areaID.
Any help with this query would be much appreciated...
Using c# in the compact framework, is there a way to do a parameterized query for counting the number of records where a specified column is null. I tried all of these, but none of them work:
cmd.Add(new SqlCeParameter("@IntColumn", SqlInt32.Null)); cmd.CommandText = "select count(*) from TableName where IntColumn is not @IntColumn";
cmd.CommandText = "select count(*) from TableName where not IntColumn = @IntColumn";
cmd.Parameters.Add(new SqlCeParameter("@IntColumn", SqlDbType.Int32)); cmd.Parameters["@IntColumn"].Value = SqlInt32.Null; cmdGetNumRead.CommandText = "select count(*) from TableName where IntColumn is not @IntColumn";
I have faced a situation that when i try to update a page. Some values can be updated while some cannot. I try to print the executed SQL query and get the following1 "UPDATE orders SET 2 cust_id=15,po_code='PO20060610', 3 po_amt=10000.0000, 4 add_charges=0, 5 commission='eeeeeee', 6 lab_charges=0, 7 fty_dis=0, 8 pay_trm='adasds', 9 cust_dis=0, 10 trade_trm_desc='', 11 curr_rate=1, 12 ship_expense=0, 13 shipmark='eng ship mard new2', 14 sidemark='Eng Side Mark new333' 15 ,inner_box='Eng Inner Box new333', 16 confirmation='rend confirmation2', 17 contract='end contact23', 18 internal_remark='testing testing 26/6/2007 333', 19 rec_curr_rate=0,rec_amt=0,shipmark_attach='', 20 sidemark_attach='',inner_box_attach='', 21 ord_type=1,status=2,ord_confirm_code='', 22 commission_type=1,sidemark_lang='English', 23 curr_code='HKD',unit_code='PCS', 24 trade_trm='FOB Hong Kong',rec_curr='USD', 25 ord_date='2006/06/10', po_date='01/01/2007',exp_delivery_date='01/01/2007', 26 act_delivery_date='01/01/2007', pay_start_date='10/10/06',pay_end_date='10/10/06',upd_time='2007/03/15 15:41:14' WHERE ord_id=292;Set @ord_id=292;"
The fields sidemark, inner_box, internal_remark cannot update, while others can. I think it's really strange.... since i have no idea why some can be updated while some others and the SQL seems to me is correct. Please give me some advices on solving this. Thank you.
I am new to both ASP.net and this forum. I have seen some posts close to this, but none address this problem.
I have a SQL Server database on JOHN1 called 'siu_log' with a table called 'siu_log'. It has two fields: Scenarios char[20] and Machines char[20].
I have been adapting code from Build Your Own ASP.NET Website in C# & VB.NET by Zac Ruvalcaba to learn the language. Much of what you will see is his work adapted for my use.
Sub dg_Update(ByVal s As Object, ByVal e As DataGridCommandEventArgs) Dim strMachineName, strScenarioName As String Dim intResult As Integer strScenarioName = Trim(scenariosDataGrid.DataKeys(e.Item.ItemIndex)) strMachineName = CType(e.Item.FindControl("txtMachine"), TextBox).Text cmd = New SqlCommand("UPDATE siu_log SET Machines=@Machine " & _ "WHERE Scenarios=@Scenario", conn) cmd.Parameters.Add("@Machine", strMachineName) cmd.Parameters.Add("@Scenario", strScenarioName) conn.Open() intResult = cmd.ExecuteNonQuery() resultLabel.Text = "The result was " & intResult & "." conn.Close() scenariosDataGrid.EditItemIndex = -1 BindData() End Sub
The problem is the strMachineName variable always contains the previous contents of the text box -- not the new one. This makes the UPDATE query just push the old data back into the table.
I have a grid like this and when I change Designation value of Name X from PA to PAT, this change should reflect to Sathish Designation too. Changing similar values should reflect all over the grid. Like update database on change of value of similar kind.
By far I use this query to update the grid. So a where clause should be used now to update the grid to fit this scenario.
("UPDATE AppInvent_Test SET Name = @Name, Designation = @Designation, City = @City WHERE EmpID = @EmpID");
EmpID Name Designation City 21 X PA Chn 2 Sathish PA Chn 3 Shiva A Cbe 17 Venkat M Hyd 22 Y SM Cbe 18 Vignesh SA Hyd
Help, please. I am trying to update atable with this structre:CREATE TABLE Queue (PropID int, EffDate smalldatetime,TxnAmt int)INSERT Queue (PropID) SELECT 1INSERT Queue (PropID) SELECT 2INSERT Queue (PropID) SELECT 3....from this table...CREATE TABLE Txns (PropID int, TxnDate smalldatetime,TxnType char(1), TxnAmt int)INSERT Txns SELECT 1 '20000201', 'B', 100000INSERT Txns SELECT 1 '20020515', 'B', 110000INSERT Txns SELECT 1 '20020515', 'A', 120000INSERT Txns SELECT 1 '20020615', 'c', 130000....only certain txn types are okay, and they have an orderof preference...CREATE TABLE GoodTxnTypes (GoodTxnType char(1), Pref)INSERT GoodTxnTypes SELECT 'A', 1INSERT GoodTxnTypes SELECT 'B', 2The idea is to fill in the NULL fields in the Queue table,according to a rule -- the transaction must be the latesttransaction within a date window, it must be one of the goodtxn types, and if there are two txns on that date, choosethe txn by the preferred txn type (A is preferred over B,according to the field Pref).If the time window were 20020101 to 20030101, the txnselected to update the Queue table would be this one:INSERT Txns SELECT 1 '20020515', 'A', 120000 -- there aretwo in the time window that are type A or B; they areboth on the same day, so the 'A' is preferred.If the time window were 20000101 to 20010101, this wouldbe selected because it is the only A or B type txn inthe interval:INSERT Txns SELECT 1 '20000201', 'B', 100000I'm looking for a statement that starts...UPDATE Queue SET EffDate = ...., TxnAmt = .... (EffDate,in this table, is the same as TxnDate in the Txn table).Assume we have @FirstDate and @LastDate available.Help, please. I'm getting stuck with (a) a sub-query tofind the relevant Txn records, and (b) another sub-querywithin that to find the MAX(TxnDate) within the timewindow. Filtering the Txn records on the basis of theGoodTxnTypes table is easy, as is ordering what is returned.But I'm having trouble joining the sub-queries back to theQueue table on the basis of PropId.
I have a DTSX package which reads values from a fixed-length text file using a data reader and writes some of the column values from the file to an Oracle table. We have used this DTSX several times without incident but recently the process started inserting NULL values for some of the columns when there was a valid value in the source file. If we extract some of the rows from the source file into a smaller file (i.e 10 rows which incorrectly returned NULLs) and run them through the same package they write the correct values to the table, but running the complete file again results in the NULL values error. As well, if we rerun the same file multiple times the incidence of NULL values varies slightly and does not always seem to impact the same rows. I tried outputting data to a log file to see if I can determine what happens and no error messages are returned but it seems to be the case that the NULL values occur after pulling in the data via a Data Reader. Has anyone seen anything like this before or does anyone have a suggestion on how to try and get some additional debugging information around this error?
I have SQL Server 2012 SSIS. I have Excel source and OLE DB Destination.I have problem with importing CustomerSales column.CustomerSales values like 1000.00,2000.10,3000.30,NotAvailable.So I have decimal values and nvarchar mixed in on Excel column. This is requirement for solution.However SSIS reads only numeric values correctly and nvarchar values are set as Null. Why?
can somebody explain me how I can assign a NULL value to a datetime type field in the script transformation editor in a data flow task. In the script hereunder, Row.Datum1_IsNull is true, but still Row.OutputDatum1 will be assigned a value '0001-01-01' which generates an error (not a valid datetime). All alternatives known to me (CDate("") or Convert.ToDateTime("") or Convert.ToDateTime(System.DBNull.Value)) were not successful. Leaving out the ELSE clause generates following error: Error: Year, Month, and Day parameters describe an un-representable DateTime.
My query "select blah, blah, rank from tablewithscores" will return results that can legitimately hold nulls in the rank column. I want to order on the rank column, but those nulls should appear at the bottom of the list
If I have a table with 1 or more Nullable fields and I want to make sure that when an INSERT or UPDATE occurs and one or more of these fields are left to NULL either explicitly or implicitly is there I can set these to non-null values without interfering with the INSERT or UPDATE in as far as the other fields in the table?
EXAMPLE:
CREATE TABLE dbo.MYTABLE( ID NUMERIC(18,0) IDENTITY(1,1) NOT NULL, FirstName VARCHAR(50) NULL, LastName VARCHAR(50) NULL,
[Code] ....
If an INSERT looks like any of the following what can I do to change the NULL being assigned to DateAdded to a real date, preferable the value of GetDate() at the time of the insert? I've heard of INSTEAD of Triggers but I'm not trying tto over rise the entire INSERT or update just the on (maybe 2) fields that are being left as null or explicitly set to null. The same would apply for any UPDATE where DateModified is not specified or explicitly set to NULL. I would want to change it so that DateModified is not null on any UPDATE.
INSERT INTO dbo.MYTABLE( FirstName, LastName, DateAdded) VALUES('John','Smith',NULL)
INSERT INTO dbo.MYTABLE( FirstName, LastName) VALUES('John','Smith')
INSERT INTO dbo.MYTABLE( FirstName, LastName, DateAdded) SELECT FirstName, LastName, NULL FROM MYOTHERTABLE
I have an SSIS package that imports data from an Excel file, replaces any value in Excel that reads "NULL" to "", then writes the data to a couple of databases.
What I have discovered today, is I have two columns of dates, an admit date and discharge date column, and what I need to do is anywhere I have a null value in the discharge date column, I have to replace it with the value in the admit date column.
I have searched around online and tried a few things using the Replace funtion in Derived columns but no dice so far.
Hi SQL fans,I realized that I often encounter the same situation in a relationdatabase context, where I really don't know what to do. Here is anexample, where I have 2 tables as follow:__________________________________________ | PortfolioTitle|| Portfolio |+----------------------------------------++-----------------------------+ | tfolio_id (int)|| folio_id (int) |<<-PK----FK--| tfolio_idfolio (int)|| folio_name (varchar) | | tfolio_idtitle (int)|--FK----PK->>[ Titles]+-----------------------------+ | tfolio_weight(decimal(6,5)) |+-----------------------------------------+Note that I also have a "Titles" tables (hence the tfolio_idtitlelink).My problem is : When I update a portfolio, I must update all theassociated titles in it. That means that titles can be either removedfrom the portfolio (a folio does not support the title anymore), addedto it (a new title is supported by the folio) or simply updated (atitle stays in the portfolio, but has its weight changed)For example, if the portfolio #2 would contain :[ PortfolioTitle ]id | idFolio | idTitre | poids1 2 1 102 2 2 203 2 3 30and I must update the PortfolioTitle based on these values :idFolio | idTitre | poids2 2 202 3 352 4 40then I should1 ) remove the title #1 from the folio by deleting its entry in thePortfolioTitle table2 ) update the title #2 (weight from 30 to 35)3 ) add the title #4 to the folioFor now, the only way I've found to do this is delete all the entriesof the related folio (e.g.: DELETE TitrePortefeuille WHERE idFolio =2), and then insert new values for each entry based on the new givenvalues.Is there a way to better manage this by detecting which value has to beinserted/updated/deleted?And this applies to many situation :(If you need other examples, I can give you.thanks a lot!ibiza
Hi. I'm not such an expert in sql and I wanted to update a table's fields only if the value that im going to update it with is not null. How do I do that?
Hi, I ve a table, I want to fetch certain rows based on the value of a Column. That column is nullable, and contains NULL values.I used the following query,SELECT Col_A FROM TABLE1 WHERE SOME_ID = 1317 AND Col_B NOT IN (8,9) Here, Col_B contains NULL values too. I need to fetch all rows where Col_B is not 8 or 9.Now, if I use "NOT IN", it does not work. I tried reading on it and got to know why it does not work. Even "NOT EXISTS" does not help. But still I've to fetch my values. How do I do that?Thanks & Regards,Jahanzeb
I have tried doing a search, as I figured this would be a common problem, but I wasn't able to find anything. I know that my SP is functional because when I use VWD execute the query outside of the webpage, I get the correct results -however I have to ensure that a field is either entered, or set to <NULL>. In my SET's I want it to use the wildcards. What I want is to do a search (plenty of existing topics on that, however none were of help to me). If a field is entered, then it is included in the search. Otherwise it should be ignored. In my VB I have the standard stored procedure call, passing in values to all of the parameters in the stored proc below: CREATE PROCEDURE dbo.SearchDog@tagnum int,@ownername varchar(50), @mailaddress varchar(50),@address2 varchar(50),@city varchar(50),@telephone varchar(50),@doggender varchar(50),@dogbreed varchar(50),@dogage varchar(50),@dogcolour varchar(50),@dogname varchar(50),@applicationdate varchar(50)AS IF @tagnum=-1 SET @tagnum=NULL SET @ownername = '%'+@ownername+'%' SET @mailaddress = '%'+@mailaddress+'%' SET @address2='%'+@address2+'%' SET @city = '%'+@city+'%' SET @telephone='%'+@telephone+'%' SET @dogcolour='%'+@dogcolour+'%' SET @dogbreed='%'+@dogbreed+'%' SET @dogage='%'+@dogage+'%' SET @doggender='%'+@doggender+'%' SET @dogname='%'+@dogname+'%' SET @applicationdate='%'+@applicationdate+'%' SELECT DISTINCT * FROM DogRegistry WHERE ( TagNum = @tagnum OR OwnerName LIKE @ownername OR MailAddress LIKE @mailaddress OR Address2 LIKE @address2 OR City LIKE @city OR Telephone LIKE @telephone OR DogGender LIKE @doggender OR DogBreed LIKE @dogbreed OR DogAge LIKE @dogage OR DogColour LIKE @dogcolour OR DogName LIKE @dogname OR ApplicationDate LIKE @applicationdate ) AND TagNum > 0GO I don't know why it is creating links inside my SP -ignore them. TagNum is the primary key, if that makes a difference. On the webpage, it ONLY works when every field has been filled (and then it will only return 1 row, as it should, given the data entered). Debugging has shown that when nothing is entered it passes "". Any ideas?
I am trying to retrieve data from two different tables. One of the tables has more than 20 columns some of which are null. I would like to retrieve data from both tables excluding the columns which have null values. How do I do this?
Would this take care of null values in either a.asset or b.asset?
SELECT convert(decimal(15,1),(sum(isnull(a.asset,0))/1000.0)+(sum(isnull(b.asset,0))/1000.0)) as total_assets
What's throwing me off is that there are multiple a.asset or b.asset for each unique ID. It seems to work, but I'm not following the logic too well. If I were doing this in another language, I would loop through, summing a.asset and b.asset wherever it's not null for each unique ID.
How can I use "Derived Column" to check if a Datetime value is null or not and if null to insert 00/00/00 instead. ?
The background being that while using a "Derived Column" to change a Column from a (DT_DATE) to a (DT_DBTIMESTAMP) everytime I get a null value it see's it as a error.
And the column in particular has ~ 37 K blank / null fields so Im getting a lot of errors
So far I have tried to use something like
ISNULL([Column 34])
Or
SELECT ISNULL(ID, '00/00/0000') FROM [Column 34]
Or
SELECT ISNULL(au_id, '00/00/0000 00:00') AS ssn FROM [Column 34
but none seems to work [Column 34] being the offending column.
What a normally use is just a simple "(DT_DBTIMESTAMP)[Column 34]" in the expression column, which seems to work well, but here I get alot of errors
I set up a new SQL database file, in that file I allowed nulls, When I went through code to save the record, the exception is saying it doesnt allow nulls.
Before I get to involved with SQL, is it a bad practice to use nulls?
If it is what do you enter in place of the null value,
hi ive got a inert sub where i grab values from text boxes etxthe values are passed to a stored procedure however , one of these fields is a date field , but the field is not required ...so on this line if the date text box is left blank i get an error , not a valid date .Parameters.Add("@actiondate", SqlDbType.DateTime).Value = txtActionDate.Texti have tried ( the actiondate field can take nulls ..)if txtActionDate="" then .Parameters.Add("@actiondate", SqlDbType.DateTime).Value = nothing else.Parameters.Add("@actiondate", SqlDbType.DateTime).Value = txtActionDate.Textend if but this doesnt workwhat is the best way of allowing blank values to be passed to the stored procedure( it doesnt fall over with normal text / varchar fields ) thanks
I have a sproce that accepts null for one of its parameters I can execute the sproce and enter null and it works fine, it returns all rows. When I try doing this with my GridView and the SQLDataSource it does not work. I need some help in understanding how the SQLDatasource wants a null. Here is what the parameter row of the SQLDataSource looks like. <asp:ControlParameter ControlID="EnteredByText" DefaultValue="Null" Name="EnteredBy" PropertyName="Text" Type="String" ConvertEmptyStringToNull="true" /> In my sproce I have setup the parameter as follows; @EnteredBy Nvarchar(50)=Null In my WHERE Clause I have: WHERE (tblClient.EnteredBy = @EnteredBy OR @EnteredBy IS NULL)
