How Is The Metadata Of The Result Of A UNION Determined?
May 23, 2006
Hi,
A colleague and I have just found a slightly strange situation that we don't understand.
We had (effectively) the following query:
select cast(1 as decimal(38,10))
union all
select cast(1 as decimal(38,4))
And the result contained 2 rows, each with a a scale of 4. This surprised us, we expected that the metadata of the result would be determined by the topmost query.
So we reversed them and tried this:
select cast(1 as decimal(38,4))
union all
select cast(1 as decimal(38,10))
and got exactly the same result. 2 rows with a scale of 4.
We can't understand why the scale always gets determined to be 4 regardless of the order of the queries.
I'm having a bit of trouble with the results I'm getting from a union query. First query and results shows that the 5th column(pmt) is being doubled, but if I run just that section of the union, it's not doubled. Correct result should NOT be doubled. Any help? many, many thanks.
select v.eventfee_pk, r.event_fk, r.person_fk, 0 as fee, isNull(p.payment_amount,0) as pmt, registration_ts as regDate from tblRegistration r right join tblRegistrationFee f on r.registration_pk=f.registration_fk left join tblEventFee v on f.eventfee_fk=v.eventfee_pk left join tblPayment p on r.registration_pk=p.registration_fk where (r.registration_ts >= '3/1/2006 00:00:01' and r.registration_ts <= '3/20/2006 23:59:59') and (r.person_fk=111918) union select v.eventfee_pk, r.event_fk, r.person_fk, isNull(v.event_fee,0) as fee, 0 as pmt, registration_ts as regDate from tblRegistration r right join tblRegistrationFee f on r.registration_pk=f.registration_fk left join tblEventFee v on f.eventfee_fk=v.eventfee_pk where (r.registration_ts >= '3/1/2006 00:00:01' and r.registration_ts <= '3/20/2006 23:59:59') and (r.person_fk=111918)
select v.eventfee_pk, r.event_fk, r.person_fk, isNull(v.event_fee,0) as fee, 0 as pmt, registration_ts as regDate from tblRegistration r right join tblRegistrationFee f on r.registration_pk=f.registration_fk left join tblEventFee v on f.eventfee_fk=v.eventfee_pk where (r.registration_ts >= '3/1/2006 00:00:01' and r.registration_ts <= '3/20/2006 23:59:59') and (r.person_fk=111918)
I hope I can express what I need to know.Here it goes. I am planning on writing a single stored procedure to include two select statements and followed by a third like so:Select * etcUNION ALLSelect * etcGOSelect something elseMy question is this: does this return one record set (returning all records from the three Select statements) or two, the first being the result from the UNION and the second from the select following the GO. I will need to access the data returned from the resultant UNION and from the select after the Go, so I wonder if I'll be dealing with a single dataset or two. I hope this made sense.
Hi,I was wondering if someone can help me. I have 4 tables in an SQL Server 2005 database, for purposes sake called 'table1', 'table2', 'table3' and 'table4'. They all have the same data structure between them. The columns inside them have the exact same design. For purposes sake called 'column1', 'column2', 'column3' and 'column4'. Alot of these tables have duplicate records scattered between them, so basically I want to create 'table5' with the same column names but only unique records. Can someone specify the syntax I need for this. I'm pretty sure it's a union query I need so am scouring as I type this also. Many Thanks Robert
I am new to SQL Server Integration Services. I need to help here.
If there is only one result set, I could get rank info by putting DENSE_RANK expression inside of my select. My case is that I have two data source. After union of them, I need rank the result set and save result set plus rank info into the destination. I tried to use Derived Column component by using expression DENSE_RANK() over ( order by columnName ). But it does not like it.
GridView_1 Category Name SubCategory Name Amount Construction Construction 2,877.00 Design Design 0.00 Soft Cost Inspection 0.00
GridView_2 Category Name SubCategory Name Amount Construction Construction 2,800.00 Construction Contingency 300.00 Design Design 500.00 Soft Cost Inspection 980.00 Soft Cost Survey 145.00 Soft Cost Testing 720.00 Soft Cost Management 1000.00 Soft Cost Other Costs 10,000.00
QUESTION: How could I UNION the two result sets together and where the Category Name and SubCategory Name are equal for GridView1 and GridView2, show the difference in the Amount column.
This is the result I am looking for.
Category Name SubCategory Name DIFFERANCE Construction Construction 77.00 = (GridView1 - GridView2) Construction Contingency 300.00 Design Design 500.00 Soft Cost Inspection 980.00 Soft Cost Survey 145.00 Soft Cost Testing 720.00 Soft Cost Management 1000.00 Soft Cost Other Costs 10,000.00
I am trying to do it on the back end. Though, if you have a clever way to produce a resulting gridview in C# with the results I need, I am all game! This is what I have so far: (TSQL code)
Which attributes or properties determine what is shown when you do click/drill into the details? I'm using the adventure works database as my guide and expected the (default,Identifying or Aggregate ) attributes to control it, can you summarize how the drill details are determined? My test from adventure works sample:
Pull Territory Name and #customers into the report Run it and drill into the details on one of the #customers It returns Acct#, CustType, CustName, #SalesOrders, Sum of a bunch of sales order fields and # customer addresses. The first three are the default attributes for a customer and the last sets look to be the default aggregates for the other relations to customer - Sales Order & Address.
Is it safe to say that it pulls in the default attributes of the immediate child and then aggregates of it's children? Does it go recursively?
Hi, I am sending a message to an invalid target name. The message eventually gets back to the initiator as an error type message. How can I determine the exact cause of the error - and determine that the target service name is invalid? I am using the ServiceBrokerInterface and the Message does not tell much - it seems. Also, in the sys.conversation_endpoints table, the record associated to the message only says 'Error', but no other indicator.
I'm using the sample on custom authentication from msdn but whenever I try to login I get this message.What URI are they complaining about? Has it anything to do with the custom cookie handling? I cant for the world understand whats wrong.
I've got a couple of questions linked to partitionating tables.
-What sort of criteria follows Database Engine when you have two NDF assigned to one filegroup and this filegroup is part of partition What's more: Could I force that Sql will use one by default?
I mean, my first partition encompass from 20020101 till 20030101. When I add data for example March or June, could I decide that these months belong to NDF1 rather than NDF2?
I have a query which does 3 selects and Union ALLs each to get a final result set. The performance is unacceptable - takes around a minute to run. If I remove the Union All so that the result sets are returned individually it returns all 3 from the query in around 6 seconds (acceptable performance).
Any way to join the result sets together without using Union All.
Each result set has exactly the same structure returned...
Query below [for reference]...
WITH cte AS ( SELECT A.[PoleID], ISNULL(B.[IsSpanClear], 0) AS [IsSpanClear], B.[SurveyDate], ROW_NUMBER() OVER (PARTITION BY A.[PoleID] ORDER BY B.[SurveyDate] DESC) rownum FROM[UT_Pole] A LEFT OUTER JOIN [UT_Surveyed_Pole] B ON A.[PoleID] = B.[PoleID]
We have a single generic SSIS package that is used to import several hundred iSeries tables into SQL. I am not looking to rewrite the process. But I am looking for ways to improve performance.
I have tried retain same connection, maximum insert commit size, lock table (tablock), removed some large columns, played with the log file location and size, and now I am working to tweak the defaultbuffermaxrows.
To describe the data flow task - there are six data flows tasks (dft) working at the same time. Each dtf has their own list of iSeries tables and columns and the corresponding generic SQL table names. Each dtf determines their list of tables based on the number of columns to import. So there is dft30 (iSeries table has 1-30 columns to import), dtf60 (iSeries table has 31-60 columns to import), etc. The destination SQL tables are generically called Staging30, Staging60, etc. Each column in the generic Staging tables are varchar(100). The dtfs are comprised of an OLE DB Source and an OLE DB Destination.
The OLE DB Source uses a SQL Command from Variable to build a SELECT statement. The OLE DB Source uses a connection manager that uses an IBM iAccess IBMDA400 provider. The SQL Command ends up looking like this for the dtf30. This specific example is importing from the iSeries table TDACLR and it only has two columns so it will be copied to the Staging30 table.
select TCREAS AS C1,TCDESC AS C2,0 AS C3,0 AS C4,0 AS C5,0 AS C6,0 AS C7,0 AS C8,0 AS C9,0 AS C10,0 AS C11,0 AS C12,0 AS C13,0 AS C14,0 AS C15,0 AS C16,0 AS C17,0 AS C18,0 AS C19,0 AS C20,0 AS C21,0 AS C22,0 AS C23,0 AS C24,0 AS C25,0 AS C26,0 AS C27,0 AS C28,0 AS C29,0 AS C30,''TDACLR'' AS T0 from Store01.TDACLR
The OLD DB Source variable value looks like the following, but I am not showing the full 30 columns
select cast(0 AS varchar(100)) AS C1,cast(0 AS varchar(100)) AS C2,cast(0 AS varchar(100)) AS C3,cast(0 AS varchar(100)) AS C4,cast(0 AS varchar(100)) AS C5, ... cast(0 AS varchar(100)) AS C30.
The OLE DB Destination uses OpenRowSet Using FastLoad From Variable. The insert into Staging30 ends up looking like this.
Of course we then copy and transform the Staging30 data to the SQL table that equals T0.
But back to defaultbuffermaxrows. Previously the dtfs had default values of 10000 for DefaultBufferMaxRows and 10485760 for DefaultBufferSize. I added a SQL task to SUM the iSeries column sizes, TCREAS and TCDESC in this example, and set the DefaultBufferMaxRows by dividing the SUM of the columns max_length into 10485760. But I did not see a performance improvement. Do you think that redefining the columns as varchar(100) for the insert is significant? Should I possibly SUM the actual number of columns (2) as 2x100 or SUM the 30x100?
I have a Union All transformation with 4 inputs and one output when I debug the package the sum of the different inputs rows does not match the row count in output.
I don't understand, I've used the Union All transform many times and I've never seen this.
I need to send the result of a procedure to an update statement.Basically updating the column of one table with the result of aquery in a stored procedure. It only returns one value, if it didnt Icould see why it would not work, but it only returns a count.Lets say I have a sproc like so:create proc sp_countclients@datecreated datetimeasset nocount onselect count(clientid) as countfrom clientstablewhere datecreated > @datecreatedThen, I want to update another table with that value:Declare @dc datetimeset @dc = '2003-09-30'update anothertableset ClientCount = (exec sp_countclients @dc) -- this line errorswhere id_ = @@identityOR, I could try this, but still gives me error:declare @c intset @c = exec sp_countclients @dcWhat should I do?Thanks in advance!Greg
I have an Execute SQL Task that executes "select count(*) as Row_Count from xyztable" from an Oracle Server. I'm trying to assign the result to a variable. However when I try to execute I get an error: [Execute SQL Task] Error: An error occurred while assigning a value to variable "RowCount": "Unsupported data type on result set binding Row_Count.".
Which data type should I use for the variable, RowCount? I've tried Int16, Int32, Int64.
---------------------------------------------------------------------- I executed it in my SQL Server Management Studio Express and I got: Commands completed successfully. I do not know where the result is and how to get the result viewed. Please help and advise.
HI, I ran a select * from customers where state ='va', this is the result...
(29 row(s) affected) The following file has been saved successfully: C:outputcustomers.rpt 10826 bytes
I choose Query select to a file then when I tried to open the customer.rpt from the c drive I got this error message. I am not sure why this happend invalid TLV record
As the topic suggests I need the end results to show a list of shows and their dates ordered by date DESC. Tables I have are structured as follows:
SHOWS showID showTitle
SHOWACCESS showID remoteID
VIDEOS videoDate showID
SQL is as follows:
SELECT shows.showID AS showID, shows.showTitle AS showTitle, (SELECT MAX(videos.videoFilmDate) AS vidDate FROM videos WHERE videos.showID = shows.showID) FROM shows, showAccess WHERE shows.showID = showAccess.showID AND showAccess.remoteID=21 ORDER BY vidDate DESC;
I had it ordering by showTitle and it worked fine, but I need it to order by vidDate. Can anyone shed some light on where I am going wrong?
I am trying to code a WHERE xxxx IN ('aaa','bbb','ccc') requirement but it the return values for the IN keyword changes according to another column, thus the need for a CASE function.
WHERE GROUP.GROUP_ID = 2 AND DEPT.DEPT_ID = 'D' AND WORK_TYPE_ID IN ( CASE DEPT_ID WHEN 'D' THEN 'A','B','C' <---- ERROR WHEN 'F' THEN 'C','D ELSE 'A','B','C','D' END )
I kept on getting errors, like
Msg 156, Level 15, State 1, Line 44Incorrect syntax near the keyword 'WHERE'. which leads me to assume that the CASE ... WHEN ... THEN statement does not allow mutiple values for result expression. Is there a way to get the SQL above to work or code the same logic in a different manner in just one simple SQL, and not a procedure or T-SQL script.
I'm using a subquery to return a delivery charge line as a column in the result set. I want to see this delivery charge only on the first line of the results for each contract. Code and results are below.
declare @start smalldatetime declare @end smalldatetime set @start = '2015-03-22 00:00' -- this should be a Sunday set @end = '2015-03-28 23:59' -- this should be the following Saturday
In this example, I only want to see the delivery charge of 125.00 for the first line of contract HU004377. For simplicity I have only shown the lines for 1 contract here, but there would normally be many different contracts with varying numbers of lines, and I only want to see the delivery charge once for each contract.
I recently added a column to an existing table with a getdate default. When doing a query from that server everything works fine. When a query is ran from a remote server I get an SQLOLEDB error message saying 'inconsistant metadata'. I've tried dropping the remote server and reconnecting but that didn't seem to resolve the problem. Can anyone tell me how to resolve this error. I believe the error number is 7353.
Hi,Is it possible to get metadata (i.e. descriptions of tables etc.) insql-server? In Oracle you can retrieve this information with tables likeall_objects, user_tables, user_views etc. For example, this query selectsthe owner of the table 'ret_ods_test' (in Oracle!):select ownerfrom all_objectswhere object_name = 'ret_ods_test'What's the equivalent in sql server?Thanks a lot.
Is there a way to find out which user defined procs/child packages etc are been called in SSIS packages using some metadata. The idea is to have a document which lists the number of packages called, whats sprocs and child packages are executed by those pkgs..
I have checked the SSIS metadata whitepaper but that is too generic.
[OLE DB Source [1]] Warning: The external metadata column collection is out of synchronization with the data source columns. The column "objectName1" needs to be updated in the external metadata column collection.
A corollary question: what does right-clicking a package in Solution Explorer and clicking "Reload with Upgrade" do?
-We are using SSIS packages for various kind of data load from excel source. -If there are any change in the data type or format of excel, the package cries for the Metadata mismatch. -During design time if you accept the metadata changes, all things work fine.
But in our case we have deployed the packages on Production Server, now the excel file format/data has changed. The packages are expecting a different metadata so they are not working at all.
Do you have any suggestions for the above problem? Thanks, Vijay.
i am using icolumnsrowset interface to get some metadata about the columns in a rowset, but i never got unique and primary key columns in the columnsrowset, they always return null, when using sqlcedataadapter i simply add addwithkey option to the adapter to determine it, but i dont know how to do it by using ole db interfaces, i have tried to set DBCOLUMN_KEYCOLUMN flag to true on ccommand<cynamicaccessor, crowset> but it seems it rejects it, generating an unknown error, error object says almost nothing except that 'errors occured[,,,,,]' text
can someone tell me, how can i retrieve columnsrowset with that unique and primary key sections filled?
Hello, i would like to know if it's possible to generate automatically a word document or an excel document that will contain all the metadata definition, for example containing the source columns names, their datatype, and the destination with their datatypes, so that it would easy to create a data dictionnary .
