Code below:
SELECT
NAME,
CASE WHEN PHONE IS NULL THEN '-' ELSE PHONE END AS PHONE
FROM
PATIENT
WHERE PHONE = '-'
If I am switching the NULL values to hyphens (-), why am I not getting any records when I look for hyphens in the WHERE clause? The script is not as simple as this or else I would just check for NULL values. I really need to switch NULL values to something I can pass on to a variable and query on it from Reporting Services.
Can someone help me with this :
Case WHEN ISNULL (dbo.BLH.n1name,'NOTHING')= 'NOTHING' then dbo.BLH.coname else dbo.BLH.n1name End as CustName
as the strored proc is not returning value when the fileds is blank
cheers
I am working on a Function that takes multiple parameters. I have a query that populates a temporary table, and then it processes some logic. My question is, if the parameter is passed as null, I dont want the query to be affected by this null value. Rather, I would like to not pass it at all to the query. So if the parameter is NULL, dont pass it through the query. I have the following but its not compiling right:
SELECT bom.pEngr_BOM_ID , bom.fEngr_Item_ID, det.pEngr_BOM_Detail_ID, 1, bom.Bill_Type, bom.Rev_Ltr, bom.Series_Ltr
FROM dbo.Engr_BOM_Control bom WITH (nolock)
INNER JOIN dbo.Engr_BOM_Detail det WITH (nolock)
ON det.fEngr_BOM_ID=bom.pEngr_BOM_ID
WHERE bom.pEngr_BOM_ID=@v_pEngr_BOM_ID
AND det.fEngr_BOM_ID=@v_pEngr_BOM_ID
CASE WHEN @v_Bill_Type IS NOT NULL THEN
AND bom.Bill_Type=@v_Bill_Type
END
The below code returns a NULL for all the Differential backups. I am trying to return the word Differential when there is a NULL because I can tell from when the NULLs occur that those are my differential backups. How can I get the result I want?
SELECT
CONVERT(CHAR(100), SERVERPROPERTY('Servername')) AS Server,
msdb.dbo.backupset.database_name,
msdb.dbo.backupset.backup_start_date,
msdb.dbo.backupset.backup_finish_date,
CASE
WHEN msdb..backupset.type = 'D' THEN 'Database'
[Code] .....
i have a case statement
CASE
when stuff then value
end as email
there are several instances where i come up with 2 values
is there a way to get these values distinctly
not email = value1 + "," + value2
but actually get value1 and value2 so i can use them as output without parsing in the program?
I'm running the following test query on a single table:
SELECT sph.datestamp, sph.stocksymbol, sph.closing, DATENAME(dw, sph.datestamp),
CASE DATENAME(dw, sph.datestamp)
WHEN 'Monday' then 'Monday'
ELSE (SELECT CAST(sph2.datestamp AS nvarchar) FROM BI_Test.dbo.StockDB AS sph2 WHERE sph2.DateStamp = DATEADD(d, -1, sph.datestamp) AND sph2.StockSymbol = 'NYA')
END AS TestCase,
[Code] ....
And here's an example of the output I'm getting:
Why the exact same subquery in the THEN of the second CASE statement is returning NULL when the first one completes as expected?
I need to, ultimately, create a flatfile for exporting insurance information to a third-party vendor. Each individual is to have no more than 1 line per file, which contains their coverage information, if any, on 4 different type of insurance. What i need is for 2 fields in a table to determine the output for multiple fields in the flatfile.
What I have so far works, to an extent. If I have insurance types 1, 2, 4 (of types 1-4) required output is (__ = 2 blank spaces):
1A 1B 1C 1D 1E 2A 2B 2C 2D 2E 3A 3B 3C 3D 3E 4A 4B 4C 4D 4E
== == == == == == == == == == == == == == == == == == == ==
Y N __ MD XX Y N __ MD XX N __ __ __ __ Y N __ DN XX
If they have coverage, A always = Y, B always = N, C always = blank(null), D is their ins. type, E is their cov. type(CASE statement). if they DON'T have that type of coverage, A always = N and the remaining field are NULL.
After a lot of work, and scouring a forum or 2, I attempted a whole lot of CASE functions. Below is an sample of code representing the 1x statements. This same code is repeated 4 times with the 1x being altered with 2x, 3x, 4x.
CASE HB.PLAN_TYPE
WHEN '10' THEN 'Y'
ELSE 'N' END AS 1A,
CASE HB.PLAN_TYPE
WHEN '10' THEN 'N'
ELSE ' ' END AS 1B,
' ' AS 1C,
CASE HB.PLAN_TYPE
WHEN '10' THEN HB.BENEFIT_PLAN
ELSE ' ' END AS 1D,
CASE HB.PLAN_TYPE
WHEN '10' THEN (CASE WHEN HB.COVRG_CD ='1' THEN 'XX'
WHEN HB.COVRG_CD ='2' THEN 'YY'
WHEN HB.COVRG_CD ='3' THEN 'ZZ'
ELSE 'WW' END)
ELSE ' ' END AS 1E,
It works to an extent. While the desires/required output it above, the output this produces (same scenario) is:
1A 1B 1C 1D 1E 2A 2B 2C 2D 2E 3A 3B 3C 3D 3E 4A 4B 4C 4D 4E
== == == == == == == == == == == == == == == == == == == ==
Y N __ MD XX N __ __ __ __ N __ __ __ __ N __ __ __ __
1A 1B 1C 1D 1E 2A 2B 2C 2D 2E 3A 3B 3C 3D 3E 4A 4B 4C 4D 4E
== == == == == == == == == == == == == == == == == == == ==
N __ __ __ __ Y N __ MD XX N __ __ __ __ N __ __ __ __
1A 1B 1C 1D 1E 2A 2B 2C 2D 2E 3A 3B 3C 3D 3E 4A 4B 4C 4D 4E
== == == == == == == == == == == == == == == == == == == ==
N __ __ __ __ N __ __ __ __ N __ __ __ __ Y N __ DN XX
While there is supposed to be 1 line, regardless of number of insurance types, it only produces 1 line per type. I first tried this in Access, and was able to get it to work, but it required multiple queries resulting in a crosstab, export to Excel and manually manipulate the data, export to text file to manipulate, import back into Excel to manipulate, import back into Access and finally export into a flatfile. Far too much work to produce a file which is why I'm trying to convert it to raw SQL.
Any assistance in this matter would be greatly appreciated.
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.
Hello,Thanks for helping me with this... I really appreciate it.I have a table called tblPatientDemographics with a number of columns.I would like to count the number of NULL values per record within mytable.tblPatientDemographicsPatientID Age Weight Height Race1234567 20 155 <NULL> Caucasian8912345 21 <NULL> <NULL> <NULL>In the first example above I want to display '1'In the second example above I want to display '3'Any help would be very much appreciated.Thanks !Chad*** Sent via Developersdex http://www.developersdex.com ***Don't just participate in USENET...get rewarded for it!
View 3 Replies View RelatedI have a bit of trouble getting values into one alias field, my code is below. I am trying to get values into the alias extension, Agent_ID is sometimes null, and so is agent_id2, however sometimes they both have values in them, and then only one of the values is every returned. When in the example below only Agent_ID (11111) is ever returned by I want both of them returned.
Agent_ID Agent_ID2
11111 22222
<code>
SELECT DISTINCT
CASE WHEN [AGENT_ID] is not null then AGENT_ID
when agent_id2 is not null then agent_id2 end as extension
FROM [AA_Helper].[dbo].[tblEmpData]
</code>
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")
End While
End Sub</code>
I use the merge statement in a sproc to insert, update and delete records from a staging table to a production table.
In the long sql, here is a part of it,
When Matched and
((Student.SchoolID <> esis.SchoolID
OR
Student.GradeLevel <> esis.GradeLevel
OR
Student.LegalName <> esis.LegalName
OR
Student.WithdrawDate <> esis.WithdrawDate
Student.SPEDFlag <> esis.SPEDFlag
OR
Student.MailingAddress <> esis.MailingAddress)
Then update
Set Student.Schoolid=esis.schoolid,
.....
My question is how about if the column has null values in it.for example
if schoolID is null in production table is null, but in staging table is not null, will the <> return true.or if either side of <> has a null value, will it return true.
I don't want it to omit some records and causing the students records not get updated.If not return true, how to fix this?
I have built a SSIS package that bascially updates two columns in table A...the update statement reads;
update Table A
set Colum 1 = ?,('?' is a variable)
Column 2 = ?
In my SSIS package, I would like to be notified/capture, if one or both variables are null....How do I do that ?..error log ?
The package runs fine both ways (if variables are null or not)
Thank you
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)
[code]...
We are just upgrading a server from 2000 to 2005 and we are getting the message below when we execute a sql statement against a table with a date field with null values:
"Error converting data type DBTYPE_DBTIMESTAMP to datetime."
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.
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?
-- Ryan
I have a view where I'm using a series of conditions within a CASE statement to determine a numeric shipment status for a given row. In addition, I need to bring back the corresponding status text for that shipment status code.
Previously, I had been duplicating the CASE logic for both columns, like so:
Code Block...beginning of SQL view...
shipment_status =
CASE
[logic for condition 1]
THEN 1
WHEN [logic for condition 2]
THEN 2
WHEN [logic for condition 3]
THEN 3
WHEN [logic for condition 4]
THEN 4
ELSE 0
END,
shipment_status_text =
CASE
[logic for condition 1]
THEN 'Condition 1 text'
WHEN [logic for condition 2]
THEN 'Condition 2 text'
WHEN [logic for condition 3]
THEN 'Condition 3 text'
WHEN [logic for condition 4]
THEN 'Condition 4 text'
ELSE 'Error'
END,
...remainder of SQL view...
This works, but the logic for each of the case conditions is rather long. I'd like to move away from this for easier code management, plus I imagine that this isn't the best performance-wise.
This is what I'd like to do:
Code Block
...beginning of SQL view...
shipment_status =
CASE
[logic for condition 1]
THEN 1
WHEN [logic for condition 2]
THEN 2
WHEN [logic for condition 3]
THEN 3
WHEN [logic for condition 4]
THEN 4
ELSE 0
END,
shipment_status_text =
CASE shipment_status
WHEN 1 THEN 'Condition 1 text'
WHEN 2 THEN 'Condition 2 text'
WHEN 3 THEN 'Condition 3 text'
WHEN 4 THEN 'Condition 4 text'
ELSE 'Error'
END,
...remainder of SQL view...
This runs as a query, however all of the rows now should "Error" as the value for shipment_status_text.
Is what I'm trying to do even currently possible in T-SQL? If not, do you have any other suggestions for how I can accomplish the same result?
Thanks,
Jason
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?
View 12 Replies View Relatedi was tasked to created an UPDATE statement for 6 tables , i would like to update 4 columns within the 6 tables , they all contains the same column names. the table gets its information from the source table, however the data that is transferd to the 6 tables are sometimes incorrect , i need to write a UPDATE statement that will automatically correct the data. the Update statement should also contact a where clause
the columns are [No] , [Salesperson Code], [Country Code] and [Country Name]
i was thinking of doing
Update [tablename]
SET [No] =
CASE
WHEN [No] ='AF01' THEN 'Country Code' = 'ZA7' AND 'Country Name' = 'South Africa'
ELSE 'Null'
END
What is the best way to script this
Hello friends,
I want to use select statement in a CASE inside procedure.
can I do it? of yes then how can i do it ?
following part of the procedure clears my requirement.
SELECT E.EmployeeID,
CASE E.EmployeeType
WHEN 1 THEN
select * from Tbl1
WHEN 2 THEN
select * from Tbl2
WHEN 3 THEN
select * from Tbl3
END
FROM EMPLOYEE E
can any one help me in this?
please give me a sample query.
Thanks and Regards,
Kiran Suthar
I am attempting to run update statements within a SELECT CASE statement.
Select case x.field
WHEN 'XXX' THEN
UPDATE TABLE1
SET TABLE1.FIELD2 = 1
ELSE
UPDATE TABLE2
SET TABLE2.FIELD1 = 2
END
FROM OuterTable x
I get incorrect syntax near the keyword 'update'.
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?
CREATE TABLE [dbo].[Import_CustomerSales](
[CustomerId] [nvarchar](50) NULL,
[CustomeName] [nvarchar](50) NULL,
[CustomerSales] [nvarchar](50) NULL
) ON [PRIMARY]
Hi
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.
If Not Row.Datum1_IsNull Then
Row.OutputDatum1 = Row.Datum1
Else
Row.OutputDatum1 = CDate(System.Convert.DBNull)
End If
Any help welcome.
Hi All,
I've looked through the forum hoping I'm not the only one with this issue but alas, I have found nothing so I'm hoping someone out there will give me some assistance.
My problem is the case statement in my Insert Statement. My overall goal is to insert records from one table to another. But I need to be able to assign a specific value to the incoming data and thought the case statement would be the best way of doing it. I must be doing something wrong but I can't seem to see it.
Here is my code:
Insert into myTblA
(TblA_ID,
mycasefield =
case
when mycasefield = 1 then 99861
when mycasefield = 2 then 99862
when mycasefield = 3 then 99863
when mycasefield = 4 then 99864
when mycasefield = 5 then 99865
when mycasefield = 6 then 99866
when mycasefield = 7 then 99867
when mycasefield = 8 then 99868
when mycasefield = 9 then 99855
when mycasefield = 10 then 99839
end,
alt_min,
alt_max,
longitude,
latitude
(
Select MTB.LocationID
MTB.model_ID
MTB.elevation, --alt min
null, --alt max
MTB.longitude, --longitude
MTB.latitude --latitude
from MyTblB MTB
);
The error I'm getting is:
Incorrect syntax near '='.
I have tried various versions of the case statement based on examples I have found but nothing works.
I would greatly appreciate any assistance with this one. I've been smacking my head against the wall for awhile trying to find a solution.
i want to display records as per if else condition in ms sql query,for this i have used tables ,queries as follows
as per data in MS Sql
my tables are as follows
1)material
fields are -- material_id,project_type,project_id,qty, --
2)AB_Corporate_project
fields are-- ab_crp_id,custname,contract_no,field_no
3)Other_project
fields are -- other_proj_id,other_custname,po
for ex :
vales in table's are
AB_Corporate_project
=====================
ab_crp_id custname contract_no field_no
1 abc 234 66
2 xyz 33 20
Other_project
============
other_proj_id other_custname po
1 xxcx 111
2 dsd 222
material
=========
material_id project_type project_id qty
1 AB Corporate 1 3
2 Other Project 2 7
i have taken AB Corporate for AB_Corporate_project ,Other Project for Other_project
sample query i write :--
select m.material_id ,m.project_type,m.project_id,m.qty,ab.ab_crp_id,
ab.custname ,op.other_proj_id,op.other_custname,op. po
case if m.project_type = 'AB Corporate' then
select * from AB_Corporate_project where ab.ab_crp_id = m.project_id
else if m.project_type = 'Other Project' then
select * from Other_project where op.other_proj_id=m.project_id
end
from material m,AB_Corporate_project ab,Other_project op
but this query not work,also it gives errors
i want sql query to show data as follows
material_id project_type project_id custname other_custname qty
1 AB Corporate 1 abc -- 3
2 Other Project 2 -- dsd 7
so plz help me how can i write sql query for to show the output
plz send a sql query
Hi,
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
e.g.
Rank Blah Blah
1 - -
2 - -
3 - -
NULL - -
NULL - -
At present the NULLs are at the top of the list, but I do not want my ranking in descending order. Any suggestions?
Thanks
Dan
I am having trouble with the following:
SELECT CASE name
WHEN NULL THEN 'No name'
ELSE name
END
It is not working as I'd expect. The column displays <NULL> instead of 'No
name'. Any thoughts?
TIA
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 ???
View 1 Replies View RelatedHello again! I'm having yet another problem with my code.
CASE Kit WHEN 'Y' THEN '(Kit)' WHEN 'N' THEN '' END + ' ' +
CASE cream WHEN 'Y' THEN '(cream)' WHEN ' N' THEN '' END + ' ' +
CASE Phone WHEN 'Y' THEN '(Phone)' WHEN 'N' THEN '' END
The problem that I am running into is that if one of the values comes up as NULL the whole field is NULL. am i doing something wrong?
I am trying to setup a query that receives input variables one being a number which could be null (could receive as string).
What I want to happen is if a number is sent the data is filtered by that number but if it is empty no filtering is performed I think this involves using a case statement in a where clause but can't work out the syntax I am using sql 200 server.
I think the case statement is something like this:
(week_no = CASE @week WHEN null THEN '#' ELSE @week END)
or maybe I am way off
I considered using like @inNumber + '%' but this would cause the problem of if I inoput 2 it would also return 20's 200's ...
HiConsider two tablesid1 code1----------- -----1 a2 b3 cid2 code2 value----------- ----- -----------1 a 02 a 13 b 1They are joined on the code field.For each code, I want the maximum corresponding value. If the valuedoesn't exist (corresponding code in second table doesn't exist), I wanta NULL field returned.The result should look like this:code2 value----- -----------a 1b 1c NULLI can't get it to include the NULL row.While there are uniqe ID's in this example, the real life example uses ahorrible four field compound key.Any help would be appreciated.Ger.The above example can be recreated by the following script.DROP table #temp1DROP table #temp2SELECT 1 AS 'id1', 'a' AS 'code1'INTO #temp1UNIONSELECT 2, 'b'UNIONSELECT 3, 'c'SELECT 1 AS 'id2', 'a' AS 'code2', 0 AS valueINTO #temp2UNIONSELECT 2, 'a', 1UNIONSELECT 3, 'b', 1SELECT code2, valueFROM #temp1 t1LEFT JOIN #temp2 t2 ON t1.code1 = t2.code2WHERE CASEWHEN t2.value IS NULL THEN 1WHEN t2.value = 0 THEN 2WHEN t2.value = 1 THEN 3END = (SELECTMAX( CASEWHEN value IS NULL THEN 1WHEN value = 0 THEN 2WHEN value = 1 THEN 3END )FROM#temp2WHEREcode2 = t2.code2)
View 5 Replies View Related