Is this a correct syntax to populate a field name PHONES in my CUSTOMERS TABLE
case when(d.phone = (SELECT phone from CALLS where exists(select home_phone, mobile, toll_free from CALLS2) Then 1 END 'PHONES'
I have a stored proc that contains an update which utilizes a case statement to populate values in a particular column in a table, based on values found in other columns within the same table. The existing update looks like this (object names and values have been changed to protect the innocent):
UPDATE dbo.target_table
set target_column =
case
when source_column_1= 'ABC'then 'XYZ'
when source_column_2= '123'then 'PDQ'
[Code] ....
The powers that be would like to replace this case statement with some sort of table-driven structure, so that the mapping rules defined above can be maintained in the database by the business owner, rather than having it embedded in code and thus requiring developer intervention to perform changes/additions to the rules.
The rules defined in the case statement are in a pre-defined sequence which reflects the order of precedence in which the rules are to be applied (in other words, if a matching value in source_column_1 is found, this trumps a conflicting matching value in source_column_2, etc). A case statement handles this nicely, of course, because the case statement will stop when it finds the first "hit" amongst the WHEN clauses, testing each in the order in which they are coded in the proc logic.
What I'm struggling with is how to replicate this using a lookup table of some sort and joins from the target table to the lookup to replace the above case statement. I'm thinking that I would need a lookup table that has column name/value pairings, with a sequence number on each row that designates the row's placement in the precedence hierarchy. I'd then join to the lookup table somehow based on column names and values and return the match with the lowest sequence number, or something to that effect.
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.
I have a stored procedure in which we are deriving some flags. So, we used series of CASE statements.
For examples
CASE
WHEN LEFT(CommissionerCode, 3) IN ('ABC','DEF',...) THEN 1
WHEN PracticeCode IN (.......) THEN 1
WHEN (CommissionerCode IN (.....) OR PracticeCode NOT IN (.....) OR .....) THEN 1
ELSE 0
END
I need to put these conditions in config table and generate dynamic sql.
What is the best way to do this? especially, 3rd condition with OR logic with multiple columns involved.
i 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
I am trying to replace names found in 'xml' field name as hyperlinks, by matching with the names in database_tags.I am using the following function below, however the UDF is only recognizing one name from the XML fieldname data, instead of all the names present in the XML data.
ALTER FUNCTION [dbo].[ReplaceTags](@XML VARCHAR(MAX))
RETURNS VARCHAR(MAX)
AS
BEGIN
[code]...
for example, if the XML input data is the following: It consists of: BANKP, BCJA, BCJAM, BFTH, BFTH, and EMPOP.But the updated function is only recognizing two of names BFTH, BFTH, as hyperlinks, from the database_tags table.Is there a way to get the function to recognize more than one names as hyperlinks.
My table structure like below.
id date value1 value2
1 5-june-2104 Yes No
1 6-june-2014 No Yes
2 5-june-2104 Yes Yes
Want to calculate yes count on any day for same id
I have to create a table like this across a bunch of servers. I'm thinking that I'm overlooking something with needing two additional CTEs, but maybe not. I have it at 17 seconds, which isn't much faster than a while loop solution that's currently in place.
DECLARE @START DATETIME,
@msg NVARCHAR(MAX) = N''
USE tempdb
SELECT @START = GETDATE()
CREATE TABLE dbo.EulerSource ( [SID] INT, Euler BIGINT )
[Code] ....
Below is the scenario which I have currently in my query. I need to write this query without any hardcode values , so that it will work til n number of years without modifications.
Startdate =
CASE WHEN
Trandate between '06-04-2013' and '05-04-2014' then '06-04-2013'
Trandate between '06-04-2012' and '05-04-2013' then '06-04-2012'
Trandate between '06-04-2011' and '05-04-2012' then '06-04-2011'
Trandate between '06-04-2010' and '05-04-2011' then '06-04-2010'
Trandate between '06-04-2009' and '05-04-2010' then '06-04-2009'
Trandate between '06-04-2008' and '05-04-2019' then '06-04-2008'
END
Is this possible, I am trying to execute a stored procedure depending on what parameter is selected, something like this????
Case
when field = 'value' then execute sp_procedure else execute sp_procedure_2 end
case
How I am using a CASE statement within a WHERE clause to filter data:
CREATE PROCEDURE dbo.GetSomeStuff
@filter1 varchar(100) = '',
@filter2 varchar(100) = ''
AS
BEGIN
SELECT
[Code] .
What I want, is to be able to pass in a single value to filter the table, or if I pass in (at the moment a blank) for no filter to be applied to the table.
Is this a good way to accomplish that, or is there a better way? Also, down the line I'm probably going to want to have multiple filter items for a single filter, what would be the best way to implement that?
I 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>
1. I have a simple JOIN statement between A and B, e.g. Cities A JOIN Countries B:
SELECT A.City_Name, B.Country_Code, B.Country_Area
FROM Cities A
JOIN Countries B
ON B.Country_Id = A.Country_Id
WHERE B.Country_Type='ABC';
That statement works absolutely fine, very fast (less than a second) and returns me 2 records
2. I need to replace Country Area column with 1 for Europe and 0 for all the rest. I implement so in the following way:
SELECT A.City_Name, B.Country_Code, CASE B.Country_Area WHEN 'EUR' THEN 1 ELSE 0 AS Country_Area
FROM Cities A
JOIN Countries B
ON B.Country_Id = A.Country_Id
WHERE B.Country_Type='ABC';
Now to get the same two records it takes 03:55 minutes (!)
I have looked into Estimated Execution Plan, but couldn't spot any difference - all straight forward.
It is SQL 2012 SP1 with compatibility level set to 110
The following works just fine. The table tmpMHPCLMDET does have a column ADMTDT ( varchar(8) ).
While I am adding the sequence of numbers I like it to be sorted based on ADMTDT column.
What that means is the row with the earliest ( smallest ) ADMTDT will get 1 and the next 2 and so on.
Declare @ID int
If Exists ( Select c.name from sys.columns c where object_id = object_id('tmpMHPCLMDET') and C.name = 'ServiceLineID' )
Begin
--Adding a sequence of numbers to the ServiceLineID column.
SET @id = 0
UPDATE tmpMHPCLMDET
SET @id = ServiceLineID = @id + 1;
End;
Is there anyway to determine what the resulting Field Names are going to be from a SQL Statement?
For example:
SELECT TABLE1.FIELD1, TABLE1.FIELD2, TABLE1.FIELD3, TABLE2.FIELD1 AS ANOTHERNAME
FROM TABLE1 INNER JOIN TABLE2 ON TABLE1.PK = TABLE2.FK
resulting field names:
FIELD1
FIELD2
FIELD3
ANOTHERNAME
Seems easy enough splitting all values before "FROM" by comma and doing some manipulation to remove table names and anything before the word "AS". However, it gets more difficult when you have complex CASE statements embedded in you query that may also contain commas.
Just a shot in the dark because I don't know if anyone has already done something like this before.
Thank you in advance,
Jeff
how SQL 2012 would treat a literal string for a comparison similar to below. I want to ensure that the server isn't implicitly converting the value as it runs the SQL, so I'd rather change the data type in one of my tables, as unicode isn't required.
Declare @T Table (S varchar(2))
Declare @S nvarchar(255)
Insert into @T
Values ('AR'), ('AT'), ('AW')
Set @S = 'Auto Repairs'
Select *
from @T T
where case @S when 'Auto Repairs' then 'AR'
when 'Auto Target' then 'AT'
when 'Auto Wash' then 'AW' end = T.STo summarise
in the above would AR, AT and AW in the case statement be treated as a nvarchar, as that's the field the case is wrapped around, or would it be treated as a varchar, as that's what I'm comparing it to.
I have a function that returns a table from a comma-delimited string.
I want to take this a step further and create a function that will return a set of tablenames in a table based on a 'group' parameter which is a simple integer...1->9, etc.Obviously, what I am doing is not working out.
CREATE FUNCTION dbo.fnReturnTablesForGroup
(
@whichgroup int
)
RETURNS @RETTAB TABLE (
TABLENAME VARCHAR(50)
[code]....
I have created a table name "tblPopulation" with fields 'Country', 'State' etc....
When i query it with table name as tblpopulation with fields 'country', 'state' then i get error as invalid object name.
I have an Address column that I need to Substring. I want to remove part of the string after either, or both of the following characters i.e ',' OR '*'
Example Record 1. Elland **REQUIRES BOOKING IN***
Example Record 2. Theale, Nr Reading, Berkshire
Example Record 3. Stockport
How do I achieve this in a CASE Statement?
The following two case statements return the correct results, but I some how need to combine them into a single Statement?
,LEFT(Address ,CASE WHEN CHARINDEX(',',Address) =0
THEN LEN(Address )
ELSE CHARINDEX(',' ,Address ) -1 END) AS 'Town Test'
,LEFT(Address ,CASE WHEN CHARINDEX('*',Address ) =0
THEN LEN(Address)
ELSE CHARINDEX('*' ,Address ) -1 END) AS 'Town Test2'
I have 2 tables in a parent->child relationship. The primary key for the parent table is moving to a new column (that is an Identity). I'd like to relink the tables using the identity field.
Here's the structure:
Parent
refid int (Identity) - NEW PK
orderid char(9) - OLD PK
Child
orderdetailid int - PK
orderid char(9) - Old link to parent
refid int - New link to parent
I've populated refid in the parent. I just need to populate the refid column in the child. I have a VFP background. In VFP I would have looped through the child, found the matching record in the parent, then transfered the data over. I don' t have a clue how to do this in TSQL.
Brian
I do a SELECT * from table command in an ASP page to build a text fileout on our server, but the export is not to allow a field name rows ofrecords. The first thing I get is a row with all the field names. Whydo these come in if they are not part of the table records? How do Ieliminate this from being produced? Here's the ASP code....<html><head><title>Package Tracking Results - Client Feed</title></head><body><%' define variablesdim oConn ' ADO Connectiondim oRSc ' ADO Recordset - Courier tabledim cSQLstr ' SQL string - Courier tabledim oRSn ' ADO Recordset - NAN tabledim nSQLstr ' SQL string - NAN tabledim objFSO ' FSO Connectiondim objTextFile ' Text File' set and define FSO connection and text file object locationSet objFSO = CreateObject("Scripting.FileSystemObject")'Set objTextFile =objFSO.CreateTextFile(Server.MapPath("textfile.txt"))'Response.Write (Server.MapPath("textfile.txt") & "<br />")Set objTextFile = objFSO.OpenTextFile("C: extfile.txt",2)' write text to text file'objTextFile.WriteLine "This text is in the file ""textfile.txt""!"' SQL strings for Courier and NAN tablescSQLstr = "SELECT * FROM Courier"' set and open ADO connection & oRSc recordsetsset oConn=Server.CreateObject("ADODB.connection")oConn.Open "DRIVER={Microsoft Access Driver (*.mdb)};DBQ=" &"c:/Database/QaTracking/QaTracking.mdb" & ";"set oRSc=Server.CreateObject("ADODB.Recordset")oRSc.Open cSQLstr, oConnResponse.ContentType = "text/plain"Dim i, j, tmpIf Not oRSc.EOF ThenFor i = 1 To oRSc.Fields.CountobjTextFile.Write oRSc.Fields(i-1).NameIf i < oRSc.Fields.Count ThenobjTextFile.Write " "End IfNextobjTextFile.WriteLineWhile Not oRSc.EOFFor i = 1 To oRSc.Fields.CountIf oRSc.Fields(i-1) <"" Thentmp = oRSc.Fields(i-1)' If TypeName(tmp) = "String" Then' objTextFile.Write "" &_'Replace(oRSc.Fields(i-1),vbCrLf,"") & ""' ElseobjTextFile.Write oRSc.Fields(i-1)' End IfEnd IfIf i < oRSc.Fields.Count ThenobjTextFile.Write " "End IfNextobjTextFile.WriteLineoRSc.MoveNextWendEnd IfobjTextFile.CloseSet objTextFile = NothingSet objFSO = NothingoRSc.CloseSet oRSc = NothingoConn.CloseSet oConn = Nothing%></body></html>
View 1 Replies View RelatedI have a query that displays a bunch of fields, specifically a createdon field and closedate field.I need to find the diff in days between date1 and date2 and only disiplay those results.For example: where the NumDays = a certain value. For example, 81.I have the NumDays displaying in the query, but I don't know how to reference these values in the where clause.
SELECT
TBU.businessunitidnameAS 'BU Name',
LEADS.statecodenameAS 'Status',
LEADS.statuscodeAS 'Status Code',
LEADS.accountidnameAS 'Account Name',
[code]...
I need to ensure some naming standards to users while creating tables.
All table name should be in same pattern
(ie., ) TeamName_EmpId_tablename
I need a way to restrict user to follow the naming standard. If any user tries to create table without the above naming standard system should not allow.
I have query which is used to dynamically insert value but not working. We are trying to get all table names and insert dynamically to all tables by looping through table names.
declare @a varchar(max),@i int;
declare @table table(rno int, name varchar(max))
declare @b varchar(max)
insert into @table
select row_number() over( order by table_name) rno, table_name from INFORMATION_SCHEMA.tables
declare @tblname varchar(max)
[Code] .....
Hello,
In a Data Flow Task, I have an OLE DB source that uses the following SQL Statement;
******************************************
--First create a table
DECLARE @CategoryTable TABLE
(ColID Int,
ColCategory varchar(60),
ColValue varchar(500)
)
--and fill it
INSERT INTO @CategoryTable
(ColID, ColCategory, ColValue)
SELECT
0,
LEFT(RawCollectionData,CHARINDEX(':',RawCollection Data)),
LTRIM(SUBSTRING(RawCollectionData,CHARINDEX(':',Ra wCollectionData)+1,255))
FROM Collections_Staging
--Assign an ID to each block of data for each occurance of 'Reason:'
DECLARE @ID int
SET @ID = 1
UPDATE @CategoryTable
SET [ColID] = CASE WHEN ColCategory = 'Reason:' THEN @ID - 1 ELSE @ID END,
@ID = CASE WHEN ColCategory = 'Reason:' THEN @ID + 1 ELSE @ID END
--Then put the data together
SELECT --cast to Nvarchar for MSAccess
a.ColID,
CAST(a.ColValue as Nvarchar(30)) AS OrderID,
COALESCE(CAST(b.ColValue as Nvarchar(30)),'') AS SellerUserID,
COALESCE(CAST(c.ColValue as Nvarchar(100)),'') AS BusinessName,
COALESCE(CAST(d.ColValue as Nvarchar(15)),'') AS BankID,
COALESCE(CAST(e.ColValue as Nvarchar(15)),'') AS AccountID,
COALESCE(CAST(SUBSTRING(f.ColValue,CHARINDEX('$',f .ColValue)+1,500)AS DECIMAL(18,2)),0) AS CollectionAmount,
COALESCE(CAST(g.ColValue as Nvarchar(10)),'') AS TransactionType,
CASE
WHEN h.ColValue LIKE '%Matching Disbursement%' THEN NULL
ELSE CAST(h.ColValue AS SmallDateTime)
END AS DisbursementDate,
--COALESCE(h.ColValue,'') AS DisbursementDate,
CASE
WHEN i.ColValue LIKE '%Matching Disbursements%' THEN NULL
WHEN CAST(LEFT(REVERSE(i.ColValue),4)AS INT) > 1000 THEN CAST(i.ColValue AS SmallDateTime)
WHEN LEFT(REVERSE(i.ColValue),4) = '1000' THEN NULL
END AS ReturnDate,
--COALESCE(i.ColValue,'') AS ReturnDate,
COALESCE(CAST(j.ColValue as Nvarchar(4)),'') AS Code,
COALESCE(CAST(k.ColValue as Nvarchar(255)),'') AS CollectionReason
FROM @CategoryTable a
LEFT JOIN @CategoryTable b ON b.ColID = a.ColID AND b.ColCategory = 'Seller UserId:'
LEFT JOIN @CategoryTable c ON c.ColID = a.ColID AND c.ColCategory = 'Business Name:'
LEFT JOIN @CategoryTable d ON d.ColID = a.ColID AND d.ColCategory = 'Bank ID:'
LEFT JOIN @CategoryTable e ON e.ColID = a.ColID AND e.ColCategory = 'Account ID:'
LEFT JOIN @CategoryTable f ON f.ColID = a.ColID AND f.ColCategory = 'Amount:'
LEFT JOIN @CategoryTable g ON g.ColID = a.ColID AND g.ColCategory = 'Transaction Type:'
LEFT JOIN @CategoryTable h ON h.ColID = a.ColID AND h.ColCategory = 'Disbursement Date:'
LEFT JOIN @CategoryTable i ON i.ColID = a.ColID AND i.ColCategory = 'Return Date:'
LEFT JOIN @CategoryTable j ON j.ColID = a.ColID AND j.ColCategory = 'Code:'
LEFT JOIN @CategoryTable k ON k.ColID = a.ColID AND k.ColCategory = 'Reason:'
WHERE a.ColCategory = 'Order ID:'
***************************************
This statement parses. I can preview the data. I've tried to set up both an OLE DB destination to a SQL Server table and an MS Access table destination (Jet). In either case, the data will not populate the tables. I set up a Data Viewer, and no data appears in the Viewer. With the Access destination, I have the package set up to run in 32 bit mode.
If data appears in the preview, then why doesn't the data appear in the data viewer, and why will the data not populate either of the destination tables?
Thank you for your help!
CSDunn
I'm trying to do an update query that looks like this:
UPDATE
PAEMPLOYEE
SET PAEMPLOYEE.LOCAT_CODE = EMPLOYEE.PROCESS_LEVEL
FROM
PAEMPLOYEE A
JOIN EMPLOYEE B ON A.EMPLOYEE = B.EMPLOYEE
It's erroring out on the Employee prefix B.EMPLOYEE saying:
..."does not match with a table name or alias name used in the query"
Is it wrong or will it cause problems to have a field name the same as the table name?
In a stored procedure I dynamically create a temp table by selecting the name of Applications from a regular table. Then I add a date column and add the last 12 months. See attachment.
So far so good. Now I want to update the data in columns by querying another regular table. Normally it would be something like:
UPDATE ##TempTable
SET [columName] = (SELECT SUM(columName)
FROM RegularTable
WHERE FORMAT(RegularTable.Date,'MM/yyyy') = FORMAT(##TempMonths.x,'MM/yyyy'))
However, since I don't know what the name of the columns are at any given time, I need to do this dynamically.
how can I get the column names of a Temp table dynamically while doing an Update?
I've this Stored procedure on a SQLserver 2000 SP3:
SELECT *,CASE immagine WHEN NULL THEN 0 ELSE 1 END AS hasImage
FROM Squadre WHERE squadra = @squadra
this is a flag that returns if the image field is present or not..
i've a lot of this type of stored procedures.. but this one returns me an error..
---------------------------
Microsoft SQL-DMO (ODBC SQLState: 42000)
---------------------------
Errore 306: The text, ntext, and image data types cannot be compared or sorted, except when using IS NULL or LIKE operator.
---------------------------
OK
---------------------------
An i can't save.. why?
reme,ber that in the same Db there's other Stored like this.. the same syntax and the same field or table.. can anyone help me??
Consider the following data:
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.
When I created a CASE statement (This is at work, Pat:)) it is about 30-40 lines long. I gave it a name and set the name = to the case statement:
ie,
SELECT fieldname1 =
CASE
WHEN condition THEN 'blah blah'
WHEN condition THEN 'blah blah'
WHEN condition THEN 'blah blah'
ELSE thisandthat
END
, fieldname2
, fieldname3
FROM tablename1
GROUP BY CASE
WHEN condition THEN 'blah blah'
WHEN condition THEN 'blah blah'
WHEN condition THEN 'blah blah'
ELSE thisandthat
END, , fieldname2, fieldname3
etc.
The long CASE statement in my GROUP BY is awkward to me. Is this the only way to do it? I tried using the fieldname1 but it comes back as an invalid field name and asks for the "expression".
Regards,
Dave
SELECT
SUM(((CASE WHEN
o.date>= a.activity_date, other filter condition, other filter condition
THEN
(select coalesce(d.balance,d2.balance) from drawtable d where coalesce(d.date, d2.date) < a.activity_date order by d.date desc limit 1) - ( select coalesce(d.balance, d2.balance) from drawtable d where coalesce(d.date, d2.date) = interval 'current date'
else end ))
from
emailtable a
LEFT JOIN opportunity o
left join drawtable d
left join drawtable d2
etc
The tricky part is I'm joining that same table twice.....would this be better in a max/min case when statement?
I have successfully built a messaging system into my application, I now in the process of displaying the messages in the UI.
The following are how my tables are constructed.
CREATE TABLE [MailBox].[Message](
[Id] [bigint] IDENTITY(1,1) NOT NULL,
[SenderId] [bigint] NOT NULL,
[Message] [nvarchar](max) NOT NULL,
[SentDate] [datetime] NOT NULL,
CONSTRAINT [PK_MailBox.Message] PRIMARY KEY CLUSTERED
[Code] .....
Now I haven't set the foreign key on the MessageReceipient table yet. When someone sends me an email I insert a record into [MailBox].[Message] and output the insert id into MessageReceipient along with the ReceipientId this is working as expected, when I then click on my inbox I call the following stored procedure:
Select p.Username, count(mr.RecipientId) [TotalMessages],
CASE
WHEN mr.ReadDate is null then 1 -- New message
WHEN mr.ReadDate is not null then 0 -- Message has been read
END AS NewMessage
FROM [User].[User_Profile] p
JOIN [MailBox].[Message] m on p.Id = m.SenderId
JOIN [MailBox].[MessageRecipient] mr on m.Id = mr.MessageId
GROUP BY p.Username, mr.RecipientId, mr.ReadDate
This will give me the person who has emailed me, the total amount of messages and if the message is new or its been read, I do this by checking the ReadDate column as shown in the case statement (but this gives me duplicates, which is not what I want). Lets say user1 emails me 5 times so when I call this proc I will have the same user displayed to me 5 times, what I'm trying to achieve with the proc is it will show User1 as the following:
User1 5 Messages 1 or 0 New Messages
I can get it to display as follow when I remove the case statement
User1 5 Messages
but as soon as I add the case statement back in then I get 5 rows.
How can I change this proc in such a way that it will display the data as follows;
User1 5 Messages 1 or 0 New Messages
New Messages is dependent on ReadDate if its null then we have a new message, otherwise its been read.
I'm trying to create a case statement that if a field = a certain code, I'd like to take another field * 0.9. But, I'm getting a Null value for the answer..here is the statement:,case when parts.ndc = '50242-0138-01' then labels.BAGSDISP*0.9 end "Units Dispensed"..For this example labels.BAGSDISP is a value of 2. So, in theory it should be 2 * 0.9 and the result should be 1.8 but I'm getting a NULL
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