T-SQL (SS2K8) :: Multiple Child Records Per Row Dynamically?
May 21, 2015
I have two tables:
tblServer
tblInstance
tblServer represents a server, tblInstance represents any SQL Server instances present on the server. They're related thru srvID.
I'd like to write a query that gives me servers with all instances, on one row. This dataset will populate a List in an SSRS report.
I have this but it's clunky and does not provide for more than 2 instances on the server. I'd like this to account for any number of instances all on one row without having to hard code multiple joins:
with serverInfo as
(
select
srv.srvType as Type
,srv.srvName as ServerName
,srv.srvIP as ServerIP
,ins.instNetName as InstanceNetName
The query repeats the Header row value for all children associated with the header.I need the output of the query in XML format such that..For every Header element in the XML, all its children should come under that header element//I am using -
SELECT Cols FROM Table Names FOR XML PATH ('Header'), root('root') , ELEMENTS XSINIL
This still repeats the header for each detail (in the XML) , but I need all children for a header under it.I basically want my output in this format -
tblPerson - holds basic person data. tblPersonHistorical - holds a dated snapshot of the fkPersonId, fkInstitutionId, and fkDepartmentId tblWebUsers - holds login data specific to a web account, but not every person will have a web account
I want to allow my admins to search for users (persons) with web accounts. They need to be able to search by tblPerson.FirstName, tblPerson.LastName, tblInstitutions.Institution, and tblDepartments.Department. The only way a Person record is joined an Institution or Department record is through many -> many junction table tblPersonHistorical.
People place orders and make decisions in our system. Because people can change institutions and departments, we need an historical snapshot of where they worked at the time they placed an order or made a decision. Of course that means some folks will have multiple historical records. That all works fine.
So when an admin user wants to search for webusers, I only want to return data, if possible, from he most recent/current historical records. This is where I am getting bogged down. When I search for a specific webuser I simply do a TOP 1 and ORDER BY DateCreated DESC. That returns only the current historical record for that person/webuser.
But what if I want to return many different webusers, and only want the TOP 1 historical for each returned?
Straight TOP by itself won't do it. GROUP BY by itself won't do it.
Now I want the records having flag2=1 only.. I.e ID=3 has flag2=1 where as ID = 1 and 2 has flag1 and flag3 =1 along with flag2=1. I don't want ID=1 and 2.
I can't make ID unique or primary. I tried with case when statements but it I am somehow missing the basic logic.
i have Two tables... with both the table having LastUpdated Column. And, in my Select Query i m using both the table with inner join.And i want to show the LastUpdated column which has the maxiumum date value. i.e. ( latest Updated Column value).
Request ID Parent ID Account Name Addresss 1452 1254789 Wendy's Atlanta Georgia 1453 1254789 Wendy's Norcross Georgia 1456 1254789 Waffle House Atlanta Georgia
Generating the 4 lines is not the issue; I call 3 functions to do that together with cross apply.One function to get all dates between the start and end date (dbo.AllDays returning a table with only a datevalue column); one function to have these dates evaluated against a work schedule (dbo.HRCapacityHours) and one function to get the absence records (dbo.HRAbsenceHours) What I can't get fixed is having the correct hours per line.
declare @table table ( ParentID INT, ChildID INT, Value float ) INSERT INTO @table SELECT 1,1,1.2
[code]....
This case ParentID - Child 1 ,1 & 2,2 and 3,3 records are called as parent where as null , 1 is child whoose parent is 1 similarly null,2 records are child whoose parent is 2 , .....
Now my requirement is to display parent records with value ascending and display next child records to the corresponding parent and parent records are sorted ascending
I've been executing a package and passing a parent variable to the child using package configurations but I'd now like to do this using a script task. The script task would then programmatically load the package and execute it.
How do I do this and still use the parent variable?
I've found examples of how to load a package but I haven't been able to find out how to I load it specifying the parent variables.
I think it's possible. MSDN shows the available methods but the example is for the base method.
I've not really used SSIS for a while, and I'm now building some in 2012 and trying to utilise some of the features in the 2012 SSIS catalogue; however I've hit a bit of a stumbling block.
What I'm trying to do is have a master/child package relationship, with several child packages and where the child packages themselves are dynamically called (i.e. the master package may call a different child package based upon some value or state of data already processed.)
When I try and create an expression for the PackageNameFromProject property... well, that property doesn't appear to set dynamically. I know how to do this for old style packages by creating expressions for the package name etc; but that way I can't use the package parameters I have from my master package.
I am in the process of creating a Report, and in this, i need ONLY the row groups (Parents and Child).I have a Parent group field called "Dept", and its corresponding field is MacID.I cannot create a child group or Column group (because that's not what i want).I am then inserting rows below MacID, and then i toggle the other rows to MacID and MacID to Dept.
Below is my sample data of my table named "Groups"
with Groups as ( select 1 as GroupId,'Oracle' as GroupName,0 as IdParentGroup union all select 2 as GroupId,'Microsoft' as GroupName,0 as IdParentGroup union all select 3 as GroupId,'IBM' as GroupName,0 as IdParentGroup union all select 4 as GroupId,'SunMicrosystem' as GroupName,1 as IdParentGroup union all
[Code] ....
Expected result:
with ExpectedResult as ( select 'Oracle' as GroupName,'SunMicrosystem' as SubGroup union all select '' as GroupName,'peoplesoft' as SubGroup union all select '' as GroupName,'mysql' as SubGroup union all
[Code] ....
How to achieve this parent-child has the same table.
I am building a application, which will generates a MASTER query with 15 fields & 5 tables joins.Now, the user selects only some fields from that master fields and generates the CHILD query. This is creating a performance issue.
To minimize this, i would like to remove the not necessary joins in the child query.
A user is wanting to run a query against the current 3 active databases. These change every month on the 1st e.g. Test-06-14. Therefore I want to set up a dynamic query which will always use the current database. I believe I am almost there but I cannot set the USE @DatabaseName dynamically yet.
writing the query for the following, I need to collapse the continuity. If the termdate for an ID is one day less than the effdate of the next id (for the same ID) i need to collapse the records. See below example .....how should i write the query which will give me the desired output. i.e., get min(effdate) and max(termdate) if termdate is one day less than the effdate of next record.
I am having SP which gives, two result sets. The columns which are coming from result sets are also dynamic. i.e. some time 5 columns and some time 10 columns.
Now I want to load this output into 2 different tables on daily basis. This would be truncate/delete table and load again.
Now my problem is that as I am not sure about columns, Is it possible to create table(Physical Table) depends on output of SP, and after load data into it.
During each load we can drop table, No issue and we can handle this through SSIS Package.
I have a table with about half a million records, each representing a patient in my county.
Each record has a field (RRank) which basically sorts the patients as to how "unwell" they are according to a previously-applied algorithm. The most unwell patient has an RRank of 1, the next-most unwell has RRank=2 etc.
I have just deleted several hundred records (which relate to patients now deceased) from the table, thereby leaving gaps in the RRank sequence. I want to renumber the remaining recs to get rid of the gaps.
I can see what I want to accomplish by using ROW_NUMBER, thus:
SELECT ROW_NUMBER() Over (ORDER BY RRank) as RecNumber, RRank FROM RPL ORDER BY RRank
I see the numbers in the RecNumber column falling behind the RRank as I scan down the results
My question is: How to convert this into an UPDATE statement? I had hoped that I could do something like:
UPDATE RISC_PatientList_TEMP SET RRank = ROW_NUMBER() Over (ORDER BY RRank);
but the system informs that window functions will only work on SELECT (which UPDATE isn't) or ORDER BY (which I can't legally add).
I have a database with many tables. I would like to Delete all rows with practiceID=55 from all Parents tables and all corresponding rows from its child tables. Tables are linked with foreign key constraints (but there is no ON DELETE CASCADE).
How to write a generalized code for removing rows from both parent and child tables.
Query should pick parent table one by one and delete rows with practiceID=55 and all corresponding rows from its child tables
I have used Aasim Abdullah's (below link) stored procedure for dynamically generate code for deletion of child tables based on parent with certain filter condition. But I am getting a output which is not proper (Query 1). I would like to have output mentioned in Query 2.
Link:
[URL]
--[Patient] is the Parent table, [Case] is child table and [ChartInstanceCase] is grand child
--When I am deleting a grand child table, it should be linked to child table first followed by Parent
--- query 1
DELETE Top(100000) FROM [dbo].[ChartInstanceCase] FROM [dbo].[Patient] INNER JOIN [dbo].[Case] ON [Patient].[PatientID] = [Case].[PatientID] INNER JOIN [dbo].[ChartInstanceCase] ON [Case].[CaseID] = [ChartInstanceCase].[CaseId] WHERE [Patient].PracticeID = '55';
--Query 2
DELETE Top(100000) [dbo].[ChartInstanceCase] FROM [dbo].[ChartInstanceCase] INNER JOIN [dbo].[Case] ON [ChartInstanceCase].[CaseId]=[Case].[CaseID] INNER JOIN [dbo].[Patient] ON [Patient].[PatientID] = [Case].[PatientID] WHERE [Patient].PracticeID = '55';
how to modify the SP 'dbo.uspCascadeDelete' to get the output as Query 2.
I have an SSIS package that puts together a series of queries to check all text fields in all tables of a database for a set of "invalid" characters. I know the root query works as we have been running it manually for quite a while. However, now that I have changed it to build dynamically, I cannot figure out why it does not work.
Here is the code. The EXEC (@sSQL) returns 3 records. It just so happens that these 3 records are the only ones in the database with a '?' in the field. The very bottom statement returns 0 records. I cannot figure out what the difference is. When I do PRINT (@sSQL), it looks fine to me, except that @Pattern is fully printed.
I have table of standardized data that I'm merging into from an Import table.
This import table may have the [ContactName]. I one row in the import table has the contact name then every row would have the contact name.
What I'd like to be able to do is something like this in the UPDATE portion of the Merge (I don't care about the insert phase, since I can insert a null [ContactName] since I'm not overwritting an existing [ContactName]
MERGE INTO [dbo].[Standardized] AS [target] USING [dbo].[ImportDestination] AS [Source] ON [Source].[Key] = [Target].[Key] WHEN MATCHED THEN UPDATE SET[ContactName] = CASE WHEN source.[ContactName] IS NOT NULL THEN source.[ContactName] else target.[ContactName];
Is anything like that possible and if the code above works it would only work on a row by row bases. Is it possible to figure out if any [ContactName] has data and if so possibly overwrite an old [ContactName] with a null?
I have created dynamic sql to declare variables based on columns from the table and i set values to those variable now here is the issue . i want to check the variable values how do i do that dynamically
drop table test create table test ( id varchar(10) not null, col1 varchar(10) , col2 varchar(10)
[Code] .....
Now my next step is verify if the variable is blank or not how do i do that ?
How do i verify all of the columns one after the other .
I am after the statement like this dynamically
-- IF NOT (@col1 = '') THEN set @SQL = @SQL + '[col1] = ' + @col1 + ' ' --IF NOT (@col2 = '') THEN set @SQL = @SQL + '[col2] = ' + @col2 + ' '
I need to check if the columns are blank or not dynamically as i do not want to hard code the column names there.
I am trying to write a query that will retrieve all students of a particular class and also any rows in HomeworkLogLine if they exist (but return null if there is no row). I thought this should be a relatively simple LEFT join but I've tried every possible combination of joins but it's not working.
SELECT Student.StudentSurname + ', ' + Student.StudentForename AS Fullname, HomeworkLogLine.HomeworkLogLineTimestamp, HomeworkLog.HomeworkLogDescription, ROW_NUMBER() OVER (PARTITION BY HomeworkLogLine.HomeworkLogLineStudentID ORDER BY
[Code] ...
It's only returning two rows (the students where they have a row in the HomeworkLogLine table).
SET MSYear= casewhen MSDate > '2011/06/30' and MSDate < '2012/07/01' THEN '2012' when MSDate > '2012/06/30' and MSDate < '2013/07/01' THEN '2013' when MSDate > '2013/06/30' and MSDate < '2014/07/01' THEN '2014' when MSDate > '2014/06/30' and MSDate < '2015/07/01' THEN '2015' when MSDate > '2015/06/30' and MSDate < '2016/07/01' THEN '2016' when MSDate > '2016/06/30' and MSDate < '2017/07/01' THEN '2017' End
Actually our business year starts from 1st july and for this code I need function which is dynamically updates the every year for example 2014-07-01 to 2015-06-30 this is called as a 2015 year like this I need function which will dynamically update a year.
I have table1 which has many unique ID numbers and table2 that has many records for each ID. some of the ID numbers in table1 have changed and I have created a translation table (table3) that links the old and new ID numbers.
What I need to do is some sort of update sql statement that updates all the records in table2 changing all the oldID numbers to the new ones using the translation table.
Table1 and table2 are not linked...can anyone help me with the sql statement
example
Table 1 IDNUM NAME 12345 Joe 12346 Mary 12347 David
