I cannot in the life of me understand what goes wrong here... In a webapplication (C#.NET) I traced an inability to retrieve existing records to SQL Server, where I cannot do the same either. The problem is that in the parameterized query, some fields can be null, and thus when the corresponding fields in the database record are null also, they should be selected. But this won't happen for some reason.
I wrote a test SQL statement that gives me the same bogus:
DECLARE @institution int, @collection int, @serialnr int, @subnr nvarchar(50)SET @institution = 1 SET @collection = 1SET @serialnr = 240 SET @subnr = NULLSELECT ID, Institution, Collection, SerialNumber, SubNumber, AccessionYear, Sagsnummer, DanekraeNr, TaxonIdentified, Stratigraphy, TypeStatus, PlacementRoom, PlacementCabinet, PlacementDrawer, UnitNotesFROM SpecimensWHERE (Institution = @institution) AND (Collection = @collection) AND (SerialNumber = @serialnr) AND (SubNumber = @subnr)
Now there is at least one row with corresponding fields values (1, 1, 240, null), but it won't be selected! What is wrong!?
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 importing an Access .mdb file into MS SQL server, and empty fields where the default value is "", change into NULL. This is a problem when I re-export a result set and have to apply a procedure to clean these values. Is there a way to eliminate this? . . . . and what have I missed?
I have a function that updates a table in sql server If a field is left blank I want the database field set to Null. I use:sqlCmd.Parameter.Add("@somefield, someintvalue) to pass all my values to the database. if someintvalue is null I want to set @somefield to dbnull How can I do this? I get errors if I submit a null integer when there is a foreign key constraint. What is the best way to handle this? should I just make all parameters objects? so that I can set them to DBNull.Value? Also on a side note, when you are populating fields from a datatable, is there a better way to set the values (i.e. of a textbox) than cheking for DBNull before assigning?
This should be a simple solution, but it has been a long time since I've done any query writing (mostly in Oracle) and I am stumped, so here goes:
We are in the process of converting Access database to MSSQL with web form front ends.
I have a table, all columns are nullable, and want users to be able to query from a form, which has a field for each column and defaults to a % wild card for the entered value.
I want the users to be able to put any string in any field, and have it return each row that matches that, including rows with null values in the other columns, but not the column with the entered criteria.
Here is a sample of the data:
Code: SQL> select * from test;
COL1 COL2 COL3 COL4 ----- ----- ----- ----- this is a test this is not test this is not this is test too is test too is too is too
7 rows selected.
Now, if I have this SQL run, it will return only rows that have no nulls in any columns:
Code: select col1, col2, col3, col4from test where col1 like'th%' and col2 like '%' and col3 like '%' and col4 like '%';
COL1 COL2 COL3 COL4 ----- ----- ----- ----- this is a test this is not test this is test too
Now, if I use an OR clause for each column, this mostly works, but the trouble is it will also return rows with null values for the field that has criteria entered in it:
Code: select col1, col2, col3, col4from test where (col1 like'th%' OR col1 is null) and (col2 like '%' OR col2 is null) and (col3 like '%' OR col3 is null) and (col4 like '%' OR col4 is null); COL1 COL2 COL3 COL4 ----- ----- ----- ----- this is a test this is not test this is not this is test too is test too is too is too
The idea is to only select the first 4 rows in the above example.
I was playing with ISNULL in the select clause, but all it does is substitute a string for a null, and I think CASE will do the same thing.
Is there a way I can write this query so it will return rows with NULL values in any column, except the one(column) that has user entered criteria in it?
I have a really simple query which i can't figure out why its not working. I have a table called 'ADMIN' which has a datetime field called 'date_edited'. Because the majority of records have never been edited, i have allowed null values and they are filled with 'NULL' in each record. How ever, when i try:
SELECT * FROM ADMIN WHERE date_edited = NULL
I get no records, but i can see and know i have hundreds! I know i'm doing somthing really stupid, but for life of me can't figure it out! :eek:
I have a checkbox on my webform that is bound to a bit field in my SQL table. I'm fine as long as I've got the bit field set to 0 or 1, but if the field is NULL, the checkbox throws an exception during the databind.
Is there any way to handle this without removing the data binding and manually setting the value (ie: some way to intercept it before the exception gets thrown and then setting the field value in the dataset)?
Ok I have upgraded my works database from a poorly designed Access database to a SQL database. The previous system allowed NULL values and duplicates to be inserted into a field that should NOT ALLOW NULL Values or duplicates. Therefore, this issue has now been moved across to my new system as I cannot set these constraints on the field that has multiple NULL values.
My solution would be to use a sequential operator, so whatever = NULL would be changed to a sequential number that us as administrators would know was a bogus number starting at something like = 999999900 counting up from that. There are only 250 records that would require updating.
To make things more interesting this field is not a integer type, its a Nvarchar type as its a Hardware ID. Both numerical and characters are require.
set @bcpcommand = 'bcp "select med + replicate('' '',10-datalength(med)),ml+ replicate('' '',20-datalength(ml)),iname + replicate('' '',10-datalength(iname)) from copy_tbl" queryout "'+ @filename + '" -U -P -c'
exec master..xp_cmdshell @bcpCommand
Some of the values in the select statement are Null values and are getting skipped in the text file .My output looks like At A02 At1E AtE A03 At2E c100 c1230 I want them to allign but the third row has a null in the middle so it skips it and put the third value in the seconds place
I have this INNER JOIN that is fine to show all possible combinations. But I need to show only rows that have one or more Null values in tbIntersect.
Should I use nested LEFT JOINT? How?
This is the SQL statement: sSQL = "SELECT DISTINCT tbCar100.Car100_ID, tbCar100.Description100 AS [Caractéristique 100], " & _ "tbCar200.Car200_ID, tbCar200.Description200 AS [Caractéristique 200], " & _ "tbCar300.Car300_ID, tbCar300.Description300 AS [Caractéristique 300], " & _ "tbCar400.Car400_ID, tbCar400.Description400 AS [Caractéristique 400], " & _ "tbCar500.Car500_ID, tbCar500.Description500 AS [Caractéristique 500], " & _ "tbCar600.Car600_ID, tbCar600.Description600 AS [Caractéristique 600], " & _ "tbCar700.Car700_ID, tbCar700.Description700 AS [Caractéristique 700], " & _ "tbProducts.Prod_ID, tbProducts.PartNumber AS [Part Number] , tbProducts.Description AS [Description] , tbProducts.DateAdded AS [Date] " & _ "FROM tbProducts INNER JOIN (tbCar700 INNER JOIN (tbCar600 INNER JOIN (tbCar500 INNER JOIN (tbCar400 INNER JOIN (tbCar300 INNER JOIN (tbCar100 INNER JOIN " & _ "(tbCar200 INNER JOIN tbIntersect ON tbCar200.Car200_ID = tbIntersect.Car200_ID) " & _ "ON tbCar100.Car100_ID = tbIntersect.Car100_ID) ON tbCar300.Car300_ID = tbIntersect.Car300_ID) ON tbCar400.Car400_ID = tbIntersect.Car400_ID) ON tbCar500.Car500_ID = tbIntersect.Car500_ID) ON tbCar600.Car600_ID = tbIntersect.Car600_ID) ON tbCar700.Car700_ID = tbIntersect.Car700_ID) ON tbProducts.Prod_ID = tbIntersect.Prod_ID " & _ ";"
Here is the content of the tbIntersect table: Car100_ID Car200_ID Car300_ID Car400_ID Car500_ID Car600_ID Car700_ID Prod_ID ID 1 1 1 1 1 1 1 1 1 1 2 1 1 1 1 1 19 1 3 1 1 1 1 1 20
I need to return the rows that have null data, ex: second row because Prod_ID is NULL and third row because Car300_ID is NULL. In fact I need the data from the other joint tables that correspond to these ID fields.
Hi. I have an sql table which contains a number and a name. I would like to create a select statement that will display these two fields in the format : "number | name", but if there is a null value in the number it will display only the name and vice versa. How can I do it ? Any help is appreciated.
I am working on some data that is JOINing to another table. Not a big thing. In the child table, there are different values for a single ID. I want to be able to select the Max ColorID that is Not Null, for each distinct CarID. The CarID is what I am joining the other table with. I need selecting the distinct row with the Max ColorID that is not Null. All this data is made up, so nothing looks logical in the design.
DECLARE @ColorList TABLE ( CarID float , ColorID int ) INSERT INTO @ColorList SELECT 1.55948815793043E+15, 9 UNION ALL SELECT 1.55948815793043E+15, 27 UNION ALL
I use a parameter for product type in my report so that end user can select different product types from a drop down menu. Now my problem is that for some fields product type is blank(NULL). But end user can not see these NULL value when he click drop down menu. I can not use Allow Null value option in report paramter , because I have used multi value option. Is there any other way to select these NULL values?
Hi there ; This Problem is goin to make me crazy! I've got a table with couple of fields, 2 of them are DateTime, in Sql Express 05 . I used asp.net 2.0 to insert datetime values, directly, using sth like DateTime.Now.ToString() . i use 2 selects as follows : 1)select * from X where Date1='8/9/2006 11:17:41 AM' 2)select * from X where Date2='8/9/2006 11:17:41 AM' #1 is OK, but the second one returns a row with all columns set to NULL . (X is the name of the table) Thanks in advance
I have a little problem here. I need to select data from multiple columns and multiple tables, some of those columns can have NULL value. I have tried few things, and havent find the right way so far. Problem that i am incountering is that when i run SELECT statment as it is right now, i dont get back results which match search parameters but have NULL value in one or more column in select statment. How can i fix this problem?
I am creating a view and want to select records where the value of a Customer field (Klant Test Plan) is NULL or has exact the same value as for example customer field 2 (Klant Schedule).
I have already the code below:
SELECT DISTINCT TOP (100) PERCENT dbo.Product.ERPKey, dbo.TestPlan.CoA, dbo.TestMethod.WorkInstruction, dbo.Customer.Name AS [Klant Testplan], Customer_1.Name AS [Klant Schedule], LEFT(dbo.ShopFloor.ShopFloorNumber, 7) AS Schedule, CASE WHEN Customer_1.Name = 'ItsMe BV' THEN Customer.Name ELSE Customer_1.Name END AS Customer FROM dbo.Customer AS Customer_1 INNER JOIN
Hi, how do i do a select statement with asp.net to return a record if a field is null. I have the following code: SqlCommand cmd = new SqlCommand("SELECT * FROM Categories WHERE ParentId = @ParentId", cn);.Parameters.Add("@ParentId", SqlDbType.Int).Value = parentId != null ? (object) parentId : DBNull.Value;cn.Open(); The variable parentId is a nullable int. However when i pass in a null value it doesn't return anything even though there are records in the database that have a null value for the ParentId field. Appreciate if someone could tell me what i am doing wrong. Thanks
Hi, I need to build a query that just includes certain columns if they haven't NULL row values.For example:SELECT NAME_COLUMN IF not NULL, SELECT GENDER_COLUMN if not NULL, otherwise won't select these 2 columns i used as example.Any help, will be greatly appreciated,Best regards,Teixeira
Hi,I have a query like this :SELECTx1,x2,( SELECT ... FROM ... WHERE ...UNIONSELECT ... FROM ... WHERE ...) as x3FROM ...WHERE ...The problem is that I don't want to return the results where x3 isNULL.Writing :SELECTx1,x2,( SELECT ... FROM ... WHERE ...UNIONSELECT ... FROM ... WHERE ...) as x3FROM ...WHERE ... AND x3 IS NOT NULLdoesn't work.The only solution I found is to write :SELECT * FROM((SELECTx1,x2,( SELECT ... FROM ... WHERE ...UNIONSELECT ... FROM ... WHERE ...) as x3FROM ...WHERE ...) AS R1)WHERE R1.x3 IS NOT NULLIs there a better solution? Can I use an EXISTS clause somewhere totest if x3 is null without having to have a 3rd SELECT statement?There's probably a very simple solution to do this, but I didn't findit.Thanks
I have a stored procedure with a SELECT statement, that retrieves 1 row. SELECT name FROM tblNames WHERE nameID = "1" I want all the NULL values in that row to be change in some default values. How do I do this?
If I try to run the code below, and even one of the values in the INNER JOIN statements is NULL, the DataReader ends up with zero rows. What I need is to see the results even if one or more of INNER JOIN statements has a NULL value. For example, if I want info on asset# 2104, and there's no value in the DriverID field, I need the rest of the data to display and just have the lblDriverName by blank. Is that possible?
<code> Sub BindSearchGrid() Dim searchUnitID As String Dim searchQuery As String searchUnitID = tbSearchUnitID.Text lblIDNum.Text = searchUnitID searchQuery = "SELECT * FROM Assets " & _ "INNER JOIN Condition ON Condition.ConditionID = Assets.ConditionID " & _ "INNER JOIN Drivers ON Drivers.DriverID = Assets.DriverID " & _ "INNER JOIN Departments ON Departments.DepartmentID = Assets.DepartmentID " & _ "INNER JOIN AssetCategories ON AssetCategories.AssetCategoryID = Assets.AssetCategoryID " & _ "INNER JOIN Store ON Store.[Store ID] = Assets.StoreID WHERE RTRIM(Assets.[Unit ID]) = '" & searchUnitID & "'"
Dim myReader As SqlDataReader myReader = Data.queryDB(searchQuery) While myReader.Read If Not IsDBNull(myReader("Store Name")) Then lblStrID.Text = myReader("Store Name") If Not IsDBNull(myReader("AssetCategory")) Then lblAsstCat.Text = myReader("AssetCategory") If Not IsDBNull(myReader("Condition Description")) Then lblCondID.Text = myReader("Condition Description") If Not IsDBNull(myReader("DepartmentName")) Then lblDepID.Text = myReader("DepartmentName") If Not IsDBNull(myReader("Unit ID")) Then lblUnID.Text = myReader("Unit ID") If Not IsDBNull(myReader("Year")) Then lblYr.Text = myReader("Year") If Not IsDBNull(myReader("Make")) Then lblMk.Text = myReader("Make") If Not IsDBNull(myReader("Model")) Then lblMod.Text = myReader("Model") If Not IsDBNull(myReader("Mileage")) Then lblMile.Text = myReader("Mileage") If Not IsDBNull(myReader("Vin Number")) Then lblVinNum.Text = myReader("Vin Number") If Not IsDBNull(myReader("License Number")) Then lblLicNum.Text = myReader("License Number") If Not IsDBNull(myReader("Name")) Then lblDriverName.Text = myReader("Name") If Not IsDBNull(myReader("DateAcquired")) Then lblDateAcq.Text = myReader("DateAcquired") If Not IsDBNull(myReader("DateSold")) Then lblDtSld.Text = myReader("DateSold") If Not IsDBNull(myReader("PurchasePrice")) Then lblPrPrice.Text = myReader("PurchasePrice") If Not IsDBNull(myReader("NextSchedMaint")) Then lblNSM.Text = myReader("NextSchedMaint") If Not IsDBNull(myReader("GVWR")) Then lblGrVWR.Text = myReader("GVWR") If Not IsDBNull(myReader("GVW")) Then lblGrVW.Text = myReader("GVW") If Not IsDBNull(myReader("Crane Capacity")) Then lblCrCap.Text = myReader("Crane Capacity") If Not IsDBNull(myReader("Crane Certification")) Then lblCrCert.Text = myReader("Crane Certification") If Not IsDBNull(myReader("Repair Cost")) Then lblRepCost.Text = myReader("Repair Cost") If Not IsDBNull(myReader("Estimate Replacement")) Then lblEstRep.Text = myReader("Estimate Replacement") If Not IsDBNull(myReader("SalvageValue")) Then lblSalVal.Text = myReader("SalvageValue") If Not IsDBNull(myReader("CurrentValue")) Then lblCurVal.Text = myReader("CurrentValue") If Not IsDBNull(myReader("Comments")) Then lblCom.Text = myReader("Comments") If Not IsDBNull(myReader("Description")) Then lblDesc.Text = myReader("Description")
is it possible to exclude empty records from an ADSI QuerySelect?
I got a query like
Code SnippetSELECT objectGUID FROM OpenQuery(ADSI, 'SELECT objectGUID FROM ''LDAP://DC=whatever,DC=domain,DC=org'' where objectClass = ''User'' AND objectCategory = ''Person''')
and would like to have it like
Code Snippet
SELECT objectGUID FROM OpenQuery(ADSI, 'SELECT objectGUID FROM ''LDAP://DC=whatever,DC=domain,DC=org'' where objectClass = ''User'' AND objectCategory = ''Person'' AND homeDirectory IS NOT NULL')
or
Code SnippetSELECT objectGUID FROM OpenQuery(ADSI, 'SELECT objectGUID FROM ''LDAP://DC=whatever,DC=domain,DC=org'' where objectClass = ''User'' AND objectCategory = ''Person'' AND NOT(homeDirectory = NULL) ')
The problem is that I can only perform a query like
Code SnippetSELECT objectGUID FROM OpenQuery(ADSI, 'SELECT objectGUID FROM ''LDAP://DC=whatever,DC=domain,DC=org'' where objectClass = ''User'' AND objectCategory = ''Person'' AND NOT(homeDirectory = '''')')
which results in the error
"Could not fetch a row from OLE DB provider 'ADSDSOObject'."
There are many objects which do have a homedirectory, though, and therefore should be fetched.
Any comments or hints on where my error hides?
I know I could go on fetching all objects and exclude the unwanted ones later on but I'd simply run into the limitation of data records LDAP would provide me with.
Has anyone seen this issue before? We are running a SQL CE 3.5 database on a windows desktop. A couple of our tables have ntext fields. When we do an insert the statement updates the value for all rows, not just the one that was added. I can easily repro this with some of the online samples too. Try the following:
SqlCeConnection conn = new SqlCeConnection(_sConn);
After the second execution the blob column in both rows will have the value 'Name2 Memo'.
This is obviously a huge problem for us and would appreciate it if someone can explain what is happening. Seems like a bug but would like to be certain before I go the support route.
I wrote a select statement, I only want to see orders with max lastUpdatedOn date of 14 days and older. Now my results show dates with all orders of 14 days and older (which is OK), but all others are displayed in the "Uitgifte" column as "NULL". But those orders should not be displayed at all.
selectdistinct ProductionHeader.ProdHeaderOrdNr, ProductionHeader.PartCode, ProductionHeader.Description, ProductionHeader.Qty, (select max (ProdStatusLog.ProdStatusCode)
I have a Log table which records items found on library shelves during a shelf scanning process. Each time a shelf is scanned all the items found are recorded in the log table and the ScanCount value is incremented (per shelf). This means that if I get the records with the highest available ScanCount value for each ShelfID, then I would have the most up to date picture of my library.
From this sample data I would like to return the latest rows (max scan count) for all shelves (which would be LogID: 7,8 (shelf A) 3,4 (Shelf B) 5,6 (Shelf C):
LogID ShelfID ScanCount ItemName 1 A 1 Dave 2 A 1 Alan 3 B 1 Mike 4 B 1 Andy 5 C 1 Mary 6 C 1 Mark 7 A 2 Sam 8 A 2 Will
I'm not sure how to do this - presumably with an inner select? Could someone help? thanks
I have rows with a datetime column which spans many years. I am wondering is there a more simple way to select those rows where the datetime column is in a particular year. For example... where datetime_column.year = '2007'
I know i can use the 'between' sql etc...but am wondering if theres something more straightforward im not aware of.
I know this is probably a flick of a switch but I cannot figure out which switch. Setup is SQL Server / Stored Procedures / DAL / BLL(skipped for testing) / PL. The stored procedure queries from only one table and two columns are ignored because they are being phased out. I can run the stored procedure and preview the data in the DAL but when I create a page with an ODS linked to the DAL and a GridView I get this error. I checked every column that does not allow nulls and they all have values. I checked unique columns (ID is the only unique and is Identity=Yes in the table definition). I checked foreign-key columns for values that are not in the foreign table and there are none. Any ideas why do I get this? Failed to enable constraints. One or more rows contain values violating non-null, unique, or foreign-key constraints.
Hi, I am getting the above error when trying to load a report into my Web Application, I have tracked the error down to one specific field in my database. Even though this field is a NVarChar field and is of size 30 it would seem that there is an issue returning the value from the field. I can write it into the database no problems but when I try to get it out of the database it returns the above error. e.g MOB 401.908.804 - Fails 0401.907.324 - okay 8239 9082 (pager) - fails Anyone got an idea on how to fix this???? Regards.. Peter.
create table #test (id int ,color varchar(20) ) insert into #test (id, color) values (1, 'blue'),(2, 'red'),(3,'green'),(4,'red,green')
if I wanted to run a query to select any records that had red in the color field, how would I do that? Not the one with only red, but a query that would give me both record number 2 and record number 4.
