How To Check For Null Value And If Exist?
Aug 23, 2007
Okay, I have the following statement for my store procedure:
Code Snippet
IF exists (SELECT [ID], [title], [name], [issueID] FROM [Outlook] WHERE ([issueID] = @OLissueID))
SELECT [ID], [title], [name], [issueID] FROM [Outlook] WHERE ([issueID] = @OLissueID)
ELSE
SELECT null ID, 'No parent page yet' title FROM Outlook
I wanted to put an ELSE IF statement right before the ELSE statement to check if the value is null. Something like this:
IF exists (SELECT [ID], [title], [name], [issueID] FROM [Outlook] WHERE ([issueID] = @OLissueID))
SELECT [ID], [title], [name], [issueID] FROM [Outlook] WHERE ([issueID] = @OLissueID)
ELSE IF (SELECT [ID], [title], [name], [issueID] FROM [Outlook] WHERE ([issueID] = @OLissueID) != null
SELECT [ID], [title], [name], [issueID] FROM [Outlook] WHERE ([issueID] = @OLissueID)
ELSE
SELECT null ID, 'No parent page yet' title FROM Outlook
Or if this is possible, it's much better:
IF exists (SELECT [ID], [title], [name], [issueID] FROM [Outlook] WHERE ([issueID] = @OLissueID) AND (SELECT [ID], [title], [name], [issueID] FROM [Outlook] WHERE ([issueID] = @OLissueID) != null)
SELECT [ID], [title], [name], [issueID] FROM [Outlook] WHERE ([issueID] = @OLissueID)
ELSE
SELECT null ID, 'No parent page yet' title FROM Outlook
I don't quite get how to write the SQL statement that I wanted so any help is much appreciated.
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Oct 20, 2015
In my report i have CNAME parameter , which allows null value. I checked Allow null value check box in report parameter properties.
when i preview the report , it displays checked NULL check box beside CNAME parameter . I want to give some meaningful name(i.e.ALLCustomers) to this checkbox instead of NULL.
Is it possible through SSRS designer?
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Aug 30, 2007
Hi guys help please..is there a function in MS SQL that check if a particular value exist in a row and would return a boolean value base from what found, Return True if it found something and False if it does not found one. I've try the EXISTS function but I cant get the rigth syntax..Any help will be greatly appreciated!
OR Maybe you can help me directly with my problem. I want to check first in my Table 1 with 3 columns if value X exists in column 1 and if X exists UPDATE that column with value Y and if value X does not exists INSERT something in the Table 1. Any suggestion or Comments will be greatly appreciated!
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Mar 31, 2008
Hi All,
1)My source files[.txt] come from an FTP server.I need to find a way to include within my SSIS package,a task that would watch a certain folder of the FTP Server and send a mail notification as soon as the file arrives.Tried using filewatcher task http://www.sqlis.com/23.aspx, but the task stays "yellow" for a long time while package is being excuted.I dont know if this is what I need to use.Are they any other task/ways?
Another Problem I'm facing is;
2)If the source file coming in the FTP Server is zipped.How do I unzip the file and move it back to the FTP Server folder for the task in 1) to watch on it .Any ideas ?
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Aug 15, 2005
helloWhat query shoul I send to SQL serwer ( in transact SQL language ) to checkdoes some database exist on serwer ? It similar to problem "does some tableexist in database" - resolve to it is query:use db_silnikIF EXISTS (SELECT * FROM prad)PRINT 'table exist'but what is the query to check does some database exist on serwer ?best regardsAdam
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Nov 9, 2007
Hi Folks,
I'm attempting to check to see if a file exists on our server before showing a link it.
I put this function in the Report Properties:
Code Block
Function isFile(PathFileName As String) As Boolean
Return isFile = System.IO.FileExists(PathFileName)
End Function
I chose a situation where I'm getting back two rows of data, one row is true and the other row is false however, when I run the report they're both coming back as 'True'.
We created a virtual directory to the file system that houses our files, so my PathFileName variable will contain something like http://Sales/North/Sales110907.pdf.
Can I use the FileExists in this fashion or am I going down the wrong path?
I appreciate any help you can give.
Best regards,
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Dec 27, 2001
Hello,
I have a dynamic query in the stored procedure, and the code looks something like this:
SET @section_test = 'SELECT sectioncode FROM ' + @tablename + ' WHERE sectioncode = "' + @condition + '"'
EXEC (@section_test)
What I need to do is try to check if the query returns any values using EXISTS (possibly), but at the same time I don't want to return the results of that dynamic query's select statement in my stored procedure. Is it possible?
Thanks.
Regards,
Katya
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Mar 6, 2012
We have a database called Itemphotos. In this table is a field called 'PID' picture ID. We have a photos directory with files like 2181.jpg, 2182.jpg, 2184.jpg. The number is the ID number for the picture of the part. If a record exist in the database based on the PID "Primary Key" , check the directory to make sure the jpg file exist. Here is the code I have so far.
use [ItemPhotos]
select pid from dbo.itemdata
declare @file_path nvarchar(500)
declare @file_exists
int set @file_path = 'av-sql2c$inetpubphotosmacolaphotos' + [itemdata].[pid]
[code]....
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Aug 10, 2007
is there a way to check the reporting services remotely.. using the reporting services url?
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May 30, 2008
I've written a DTS transaction that I would like to schedule as a job. I don't want it to run if there is nothing to send.
I this example below on another website and have changed the connection string to reflect my settings. The password has been stared out for security reasons. It's not the way it actually appears in the script. This keeps erroring out on line 21 saying expected end of statement.
I'm sure I'm missing something small and would really like to get this done tomorrow before I leave for the weekend. Any help would be greatly appreciated.
Function Main()
dim myRecordset
dim iRowCount
dim sConnection
sConnection ="Provider=sqloledb;" & _
"Data Source=GLPT-SQLCSI_SQL;" & _
"Initial Catalog=GLPTWEB;" & _
"User Id=sa;" & _
"Password=*************"
Dim oOleDbConnection
oOleDbConnection = New OleDb.OleDbConnection(sConnection)
oOleDbConnection.Open()
mySQLCmdText = "Select Count(*) FROM [GLPTWEB].[dbo].[RunTicketDataView]"
Dim myConn As New OleDbCommand
myConn(mySQLCmdText , oOleDbConnection)
set iRowCount = myConn.ExecuteReader
If iRowCount.Value = 0 then
Main = DTSTaskExecResult_Failure
Else
Main = DTSTaskExecResult_Success
End If
End Function
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Dec 6, 2013
I know how to check for a sinle vlaue but how do I chekc to see if multiple values exist. I need to check for certain email addresses from a list that I have.
Let us say I ahve 3 email addresses, I want to check for all of them in a table and for eevery email address that is present I want to print something like "You email address is XXX" and if one of those 3 is not found my results should look like
"You email address is XXX"
YYYYY not found
"You email address is ZZZZ"
I'm attaching some TSQL that I tried on [AdventureWorks2012].[Person].[EmailAddress]
/****** Select ALL if where an email address is present in the list ******/
SELECT EmailAddressID,EmailAddress
FROM [AdventureWorks2012].[Person].[EmailAddress]
WHERE EmailAddress IN
(
'ken0@adventure-works.com', --1
'terri0@adventure-works.com', --2
[Code] ....
-- Test to see if a single email address is present
IF EXISTS
(
SELECT EmailAddress FROM [AdventureWorks2012].[Person].[EmailAddress]
WHERE EmailAddress IN ('25rob0@adventure-works.com')
)
BEGIN
SELECT 'Email address is presnt'
[Code] ....
When I check multiples using EXISTS it works as per its design and says YES even if a single item is present.
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Apr 4, 2007
Does SQL have a function that return "null" for records which don't exist? Per example in a FK relation ship, that not all records in the first table have a "child" in the second table, so it returns null records.
Thank you very much.
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Apr 17, 2008
Hi
I have two tables. one MasterDetail and second is countrydetail
In master detail i have MasterDetailId (Primary) and countryId.
In CountryDetail table I have Countrid (Primary),CountryName.
I don't want to give relationship because i can insert null value in countryid in MasterDetail table.
So i have wriiten query like this
-> select c.CountryName,m.MasterDetailId from MasterDetail m,CountryDetail c where c.CountryId=m.CountryId and m.MasterDetailId= '2'
If In MasterDetail table if CountryId is null then it will not show me any record. So I want that record and its value with this query and checking null values. Help me about solving this query.
Thank You
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Mar 11, 2008
I am trying to create a stored proc.
I have to check a parameter for null value and if null then set it to zero
Here is the stored proc
set ANSI_NULLS ON
set QUOTED_IDENTIFIER ON
go
ALTER PROCEDURE [dbo].[UPDATENOA]
(
@Accepted char(10),
@NOAId bigint,
@Court char(30),
@RetainerType char(30),
@PendingInTaxCourt char(1)
)
AS
begin
UPDATE NOA set StageCode = Accepted,Court=@Court,RetainerType=@RetainerType,PendingInTaxCourt=@PendingInTaxCourt where NOAId = @NOAId;
Declare @Sequence int
Select @Sequence = MAX(Sequence) From [dbo].[NOAStages] where NOAId=@NOAId;
if @Sequence IS NULL
{
@Sequence=0
}
Insert into [dbo].[NOAStages] (NOAId,StageCode,Sequence)
values (@NOAId,@Accepted,@Sequence+1)
But this is giving me error. What is the correct way to do this.
Thanks
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Jun 2, 2004
I have two tables:
1. tblProducts
columns: ProductID, ProductName
2. tblProductCodes
columns: ProductID, CustomerID, ProductCode
The 2nd table is for storing product codes for customers, in other words, one product can have different ProductCode for different customers. But some customers do not have ProductCode for a ProductID.
I want to create a query to return all the Products and its ProductCode (null is valid) for a specific customer.
I tried:
SELECT dbo.tblProductCodes.ProductCode, dbo.tblProductCodes.CustomerID,
dbo.tblProducts.ProductName,
dbo.tblProducts.ProductID
FROM dbo.tblProducts LEFT OUTER JOIN
dbo.tblProductCodes ON dbo.tblProducts.ProductID = dbo.tblProductCodes.ProductID
WHERE dbo.tblProductCodes.CustomerID = 2
But the query left out all products that does not have ProductCode value in tblProductCodes table for CustomerID = 2. I want all the ProductName returned from query and render null or empty string for ProductCode value if the code does not exist in tblProductCodes table for the customer.
Any help is highly appreciated.
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Oct 16, 2004
I have table Products and Orders that has the following columns:
table Products: ProductID, ProductName
table Orders: OrderID, ProductID, OrderDate, Quantity, Price
The Orders table contains orders placed on all the dates. I want to obtain a list of orders for a particular date, if there is no order for a product on the requested date, I want to return null values for the Quantity and Price fields.
I tried the following select statement:
select Products.ProductName, Orders.Quantity, Orders.Price from Products left join Orders on Products.ProductID = Orders.ProductID where Orders.OrderDate = '10/16/2004'
Where, there are a total of three products (A,B,C) in table Products. Product-C has no order on 10/16/2004, but I want it to return :
ProductName / Quantity / Price
Product-A 5 1.89
Product-B 6 2.43
Product-C null null
Obviously, my sql statement won't work becaue the where clause will filter out Product-C.
Could anyone help me figure out how to modify my sql code to get the resultset I want?
Thanks in advance.
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Jan 19, 2007
How can I check on NULL values in a Select statement?
SELECT ID FROM TabelWHERE somecolumn <> NULL??
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May 19, 2006
SELECT whatever_field, CASE LEN(DrAccount) WHEN 12 THEN DrAccount ELSE CASE (Note1) WHEN NULL THEN Location + DrAccount ELSE Note1 + DrAccount END END AS Account FROM Table1 The purpose of the CASE(Note1) is when Note1 column is null, return Location+DrAccount. The actual result is when Note1 column is null, it always returns null, Location+DrAccount is not executed. When Note1 column is not null, it returns correctly Note1+DrAccount. The problem seems to reside in validating the null value in WHEN NULL How to check for null in CASE(fieldname) WHEN ???
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Jun 20, 2007
the SQL string below worked, and then started bringing up every record.
it should only select records with a value in at least one of the columns, but it apears to be suggesting that all records have some data in one of the columns. if I check the database or the output on the web page there apears to be no data. ?? confused.
"SELECT id, make, model FROM vehicles WHERE workToBeDone1 IS NOT NULL OR workToBeDone2 IS NOT NULL OR workToBeDone3 IS NOT NULL OR workToBeDone4 IS NOT NULL OR workToBeDone5 IS NOT NULL"
Any ideas how I could implement this more robustly?
cheers
M
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Apr 14, 2015
Content table
deleteddate revokeddate
1/1/2001 null
null 2/2/2003
4/5/2004 null
I am trying to create a stored procedure where.I need to loop through every row of the table and check if there exists a date in either of the column. If date exists in either of the column for every row, I need to update some other stuff.For the above table, it meets my requirement, so I need to update. However if the table is as below, it doesn't meet the requirement, so I don't need to update
deleteddate revokeddate
1/1/2001 null
null null
4/5/2004 null
I started off as below, But I am getting incorrect values.
Declare @deleterevoke bit
Declare @DelRevId int
Declare @DelRevnumrows int
Declare @tempDeletedDate datetime
Declare @tempRevokedDate datetime
[code]....
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Jul 2, 2007
hi guys, I'm using SQLServer 2005 and I was wondering how I check if some variable is null or not? I tryied to do as the code show but it doesn't work:
declare @number int
set @number = (select number from numbers where number_id = 1)
if (@number = null)
begin
set @number = 12
end
Thank you very much
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Aug 20, 2006
I am using Visual Web Developer Express 2005 and SQL Server Express 2005.
I have set up a trigger that fires when an update has been performed on a specific table. The trigger checks to see if specific columns have been updated. If they have, then the trigger code is executed. This part works fine.
I am now trying to find a way to check if null values exist in either one of two field from the same table. If either field contains a null value, then I don't want the trigger code to be executed.
How can I check for null values and skip a block of code within my Transact Sql trigger.
Thanks.....
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Jan 27, 2008
I'm about ready to pull my hair out. I have a repeater control, and a date field. If the field is a valid date, I'll use it to calculate and display the person's age. Otherwise, I want to display "N/A". My problem is trying to determine if the date field is null or not.I'm using SQL Server 2005 which allows Nulls in the date field, and for many records I don't have a birth date. It makes sense for these records to leave the date Null. This is my code:Protected Sub Repeater1_ItemDataBound(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.RepeaterItemEventArgs) Handles Repeater1.ItemDataBound If e.Item.ItemType = ListItemType.Item OrElse e.Item.ItemType = ListItemType.AlternatingItem Then Dim LabelIcon As Label = CType(e.Item.FindControl("LabelIcon"), Label) Dim LblAge As Label = CType(e.Item.FindControl("LblAge"), Label) Dim inmate As WAP.prisonmembersRow = CType(CType(e.Item.DataItem, System.Data.DataRowView).Row, WAP.prisonmembersRow) If System.IO.File.Exists(Server.MapPath("~/images/picts/" & inmate.FILE2 & ".jpg")) Then LabelIcon.Visible = True End If If inmate.DATE_OF_BIRTH Is DBNull.Value Then If IsDate(inmate.DATE_OF_BIRTH) Then LblAge.Text = "Age: N/A" Else LblAge.Text = "Age: " & GetBirthdate(inmate.DATE_OF_BIRTH) End If End If End IfEnd Sub How can I resolve this?Diane
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Sep 9, 2014
declare @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.
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Mar 13, 2014
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]
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Mar 28, 2014
select '$ '+ CONVERT(varchar,CONVERT(decimal(10,0),CONVERT(money, Amt_Value)),1) as [Amount]
from Products
How can I sum this column values and need to set a validation like the column has null values it has to return zero.
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Mar 20, 2006
Hi!I have a table with a check constraint. But unfortunately it does notwork like I wanted.CREATE TABLE MAP([R_ID] [T_D_ID] NOT NULL,[R_ID1] [T_D_ID] NULL,CONSTRAINT CHECK_ID1 CHECK (R_ID1 = R_ID OR R_ID1 = NULL),CONSTRAINT [PK_MAP] PRIMARY KEY ([R_ID]))R_ID1 should always have the value of R_ID or NullThe following statements should cause errors:insert into map (R_ID, R_ID1)values(1,2);update map set R_ID1=3 where R_ID=1;But there occur no errors. Does anyone have an idea? It is an SQL Server2000.TIASusanne
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Jul 20, 2005
Hi, I have a record set that is bound to a table in MS SQL Server. Onefiled in the table is bound to a "long" type member variable in theRecordSet. What will happen to the "long" variable when the field isNULL in the table?Thanks!-Yi
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Feb 4, 2008
A report I maintain has an extensive footer that appears on each page, populated with information I've stashed into invisible cells in the table's header. This works great, except in rare circumstances where the report includes a page that doesn't display the table at all--in which case the report errors when it attempts to print ("Object reference not set to an instance of an object").
Due to the requirements of the report, I cannot guarantee that the table will appear on every page, every time. Is there a way I can safely refer to the reportItems collection, in case of Nulls? I'll be okay with blank values in the footer in the cases where the page has no reportItems to work with, but I can't have the report blow up when printing.
Thanks in advance,
Jeff Lautenschlager
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Aug 16, 2006
I have a column say 'ActivationDate' which is a (database timestamp [DT_DBTIMESTAMP]) which I want to replace with an expression in derived columns
The condition is if 'ActivationDate' field is null or '' then 'Null' else 'ActivationDate'
I am struggling to write this condition. Without condition i.e. at present it saves the value in this database '1753-01-01 00:00:00.000'.
In the preview the 'ActivationDate'field does not show any thing so I recon it is either null or ''
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Aug 5, 2015
I have a table that keeps track of all changes that were performed in an application. There is a column called "old value" and column called "new value". There are some values in the application that don't require data therefore the "old value" or "new value" values can be empty. These columns are an nvarchar data type because the value can be text or numbers or dates. An example is "ReceivedDate". There is a report that is generated based on this table.
What is happening is the query in the report dataset is adding dates when it should be displaying empty. They query is using "CASE/WHEN/THEN". What I need is "When the column is "RecievedDate" and it is not null then convert it to a date". This is for formatting purposes.
This is an example of the table:
UpdateColumn
Old Value
New Value
ReceivedDate
7/8/2015 5:00:00 AM
ReceivedDate
7/8/2015 12:00:00 AM
7/9/2015 5:00:00 AM
ReceivedDate
7/9/2015 12:00:00 AM
So, the first time it was updated there was no value but it was replaced with July 8, 2015 and so on.This is what the report is displaying
This is the query:
CASE UpdateColumn
... WHEN 'ReceivedDate' THEN (replace(convert(varchar(11),CONVERT ( date, oldvalue ), 106), ' ', '-') )
...
I tried adding
CASE UpdateColumn
...
WHEN 'ReceivedDate' IS NOT NULL
THEN (replace(convert(varchar(11),CONVERT ( date, oldvalue ), 106), ' ', '-') )
...
But it did not like the "IS NOT NULL".
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Jun 25, 2015
I am looking for the best way to check to see if any columns are still NULL in a record. I have a form that gets filled out by users and the values entered into TableA. There are 6 columns in the table, 5 are responses and column6 indicates if the record is complete. So I want a way to see if all of the first 5 columns are NOT NULL and, if so, mark column6 with a 1.
I am thinking this would be a good thing for a trigger on INSERT or UPDATE to check to see if the first 5 columns are filled in and then mark the record as complete.
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Oct 27, 2004
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
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