SQL Query Question- Querying The Middle Table In A M To M
May 17, 2000
I need help with a query, and I haven't seen anything like this in a SQL book.
I will use the Northwind database for this example. The tables I am using are Products, Order_Detail, and Orders. There is a many to many relationship between Products and Orders, that is resolved by the Order_Detail table. Suppose I want to find out which products are related to each order. How would I query the tables?
I'm trying to run a query on a SQL Server 2005 table which has a WHERE clause that requires a query from my SQL Compact table.
SELECT * from RemoteDB.TESTDB.dbo.Objects
WHERE Last_Updated > '2008-05-21 10:51:00'
AND Object_PARENT IN (select Object_CODE from LocalDB.PDADB.dbo.Objects)
Basicallly on a linked system, this query would find all new objects in my main database where the same objects exist in my local database. This would work just perfectly, no problems.
Now, the local database is actually on a PDA running SQL Server Compact Edition. There is currently no support for creating a linked environment. I have the option of pulling the table off the local db and pushing it to the remote db and then running the above query from within the single db and then retrieving the list of new entries and pulling them down to the local db but that is a HUGE amount of bandwidth, even if I just used the single primary key column.
Would anyone maybe have a little advice for me on how I could possibly achieve the above result on SQL Server Compact please?
In SSRS report genertion using store proc based on years, retrieving the data of previous and current year details. In the middle of data, I have to add sub tax total and sub total amount from previous and current year.
I have added sub total tax and sub total in database for previous and current year totals.
Below are the current results Expected results:
I have a table (tbl_a) with 2 columns: itemNames | Date . ItemNames can have duplicates. I have another table (tbl_b) with date ranges in 2 columns: startDate | endDate.
what I would like to do is: query tbl_a where date between startDate and endDate of tbl_b.
I have 2 tables Staff and Class which are as follows
Staff ID (Primary Key) FirstName MiddleName Surname Etc. . .
Class ID (Primary key) LessonTemplateID TeacherID TermID AssistantID
LessonTemplateID and TermID link to other tables which i don't need right now.
The Class.TeacherID and Class.AssistantID both link to the Staff.ID
I am trying to create a query where i can say i want to select a class.ID of lets say 12 and display both the Teachers name and the Assistants Name.
If i do just one join between Staff.ID and lets say Class.TeacherID all is fine and i can display the teacher.FirstName for a particular class.ID. However my problem is when im trying to display both teacher and assistant. Every time i try to create a query to do this the query comes back blank.
Im really stuck on this and just can't figure it out (is it even possible?).
Hi all, I am currently moving from access queries to SQL and am using the query Builder In Visual web developerto help me with the SQL Code..This has been easy while just querying the one table adapter but Now I am stuck..I have a table adapter that links to an SQL Server database through a connection in web.config.I have another table adapter that links to DB2 through a different Connetion in web.config.My question is ..How do you query from one table adapter to another.Each table adpater can only query based on the 1 connection ? Thx,Ray..
It is my understanding that Views cannot have parameters. Also thatstored procedures can not be queried. My problem is this:I want to select the rows that match a certain parameter.From that I want to select the most current 20 rows (there is a datefield).From that I want to select the lowest 10 rows based on a numericfield.Finally I want that to be input to a report and some calculations.What this basically is the selection for USGA Golf Handicap Index. Itis the most current 20 rounds of golf by a golfer, then the best 10 ofthose 20 and then finally the calculation.Any help would be appreciated.
Hello I am writing a stored procedure and instead of "hard coding" the size of the procedure parameters I would like to set them to the size of fields in my database. for example instead of declaring a parameter like this: @ProjectDescription varchar(500)
I would like to do something like this:
@ProjectDescription varchar(Select size of "ProjectDescription" From Projects);
I am working on an application with a number of tables (which I can't change) that have data of the form a1, b1, c1... a2, b2, c2...a3, b3, c3... The tables contain 5 to 10 sets of data in each row.
I want to create a stored procedure to return a cursor with a row for each set of data for a row of the table. I know I can use unions:
select a1 as a, b1 as b , c1 as c... from sometable where pk=@pk
union
select a2, b2, c2... from sometable where pk=@pk
union
select a3...
Is there a way that is more efficient (eliminates requerying the table and all the unions)?
Folks,While I still have some hair left, can someone help me with thisquery?I have a table "TestRunInfo". Amongst other fields there are"TestRunIndex" (Pri Key), "TesterID", "Duration", and "Status".The Status field links to a Status table, which links the index valueto a more meaningful label "Pass", "Fail" etc...As you may have guessed, there is a record for each test that anindividual tester runs, and with that record is a duration, and status(1,2,3 etc).What Im trying to do, is create a datasheet view, with a single rowfor each testerID, summarising that Testers work as follows:TesterID, Total Duration, Count of passed tests, Count of failed testsSo far I have:Select TesterID, sum(Duration), count(Status) FROM TestRunInfo GROUPBY TesterIDBut this of course purely gives the total number of tests run by thatengineer as the count. I need to break it down. Help? Someone?Please?!?!?TIASteve
I wonder how the query will be executed when querying to views.Is database engine will be extract the tables that are used to create the view and query for the result ?
I have a Fact Table with a ID column as Primary key and clustered index is created. And also I have 4 dimensions FK's of data type INTEGER. And finally, I have one aggregation measure in the Fact Table.
Now, my situation is How can I improve the speed of querying the fact table by creating any of the below indexes?
I have a table (we will cal DateTable) with several (20) columns, each being a date type. Another table's (Project) PK is referenced in the DateTable.
I am trying to write a query that will pull all dates for a specific project from the DateTable if they meet certain criteria(i.e. if the date is <= 7 days from now.
I started with a normal select statement selecting each column with a join to the project and then a where clause using
(DateTable.ColumnName BETWEEN GETDATE() AND DATEADD(day, 7, GETDATE()) OR (DateTable.ColumnName BETWEEN GETDATE() AND DATEADD(day, 7, GETDATE())) ...
The rest of the columns(all with OR between them).
The problem with this is that because I am using OR once one of the dates meets the criteria it selects all the dates that are associated with the project. I ONLY want the dates that meet the criteria and don't care about the rest.
Obviously because I have all the columns in the select statement... So I need something like
Select ALL Columns from DateTable d Join Project p where p.ProjectID = d.ProjectID AND only dates BETWEEN GETDATE() AND DATEADD(day, 7, GETDATE()))
I'm fairly new to SQL and am just setting up a Windows 8 app using an Azure SQL server. The issue I have is looking up a part number supersession and getting the latest number. One part number can have multiple supersessions (ie RTC5756 > STC8572 > STC3765 > STC9150 > STC9191 > SFP500160 ).The data I am supplied monthly has both the superseeded items and the supersession information in both columns and is not easy to decipher - for example:
The newest part number is kept in a separate table - called "source" - which in this instance is SFP500160. I need access to the latest part number but also to the part's previous numbers, due to the fact that some people may still be stocking them as an old part number and for them to search by. Is there an easy and efficient way of doing both a lookup for the supersessions and a join on the two tables to minimize the queries on the database?
I am setting up extended events more or less just fine, however I am a bit confused as to how to read and load them into a table for querying. In particular the offset part - is there a way to load just a given dates worth in?
I've got the files configured to be 20MB before rolling over, the XE is running all the time.
So if i load in the full file now, say that covers 2.5 days worth, when I load it again tomorrow to get the updated data I'm also reloading today, which is a waste?
I presume I am going about this wrong, but lack an example that really goes into detail of practicalities of loading this data.
Hello all!This might be a newbie question, and there might be something Im just not thinking of right now, but I have a set of values that I need to get the average of but only from the middle 90%. Example:11 <-From here1234456 <- To here.7I thought I could solve it by subqueries and do the following:Select (((Select sum top 5 order asc) + (Select sum top 5 order desc)) - sum total)/rows*0.9 which would give me what I want, but I realised that when aggregating I cant order the subqueries.This is for an application (that will run the query on a sql-server) that only takes one query (although subqueries should be fine), and thats why I have a problem, I cant build any views or things like that.I guess my question is very simple: How can I get a sum of the bottom 5 percent without sorting descending?
I'm writing a page that will return data from my database to the user based on their search paramaters, over several pages with 20 matching records showing per page, and a next button on the bottom. Similar to the format of any search engine. However, I'd like to write this into the query, and I'm not sure how I would go about doing so. For example: "SELECT TOP 20 to 40 * FROM Northwind" Hopefully this makes sense. Is there any way of doing this? Thanks in advance,Russ
I am trying to concatenate three fields into one in a View. I have the following data: Last Name First Name Middle Initial (can be null)
I need my resultant field data to look like the following: "Doe, John P."
I'm having a problem writing SQL that is sensitive to placing the period after the middle initial only if there is a middle initial present. If there isn't a middle initial, I just want the following: "Doe, John".
I have tried the following CASE statement:
CASE WHEN middleInitial IS NOT NULL THEN ' ' + middleInitial + '.' ELSE '' END
However, I get an error indicating that the CASE statement is not supported in the Query Designer.
How can I resolve this problem in a View? Is there a function similar to ISNULL(middleInitial, '') that would allow for the "."?
Lets say I have a column of type varchar and need to extract an integer value from the middle of it. The string looks like this:'this part is always the same' + integer of varying length + 'this part is different but always the same length'Is there a way to trim the constant string lengths from the beginning and end?
So I have this query where i need to get the average date of about five different dates... Is there any way to do this or am I screwed. I looked at using the avg function but SQL server 2005 did not like that.
I need to display the middle initial from a name field that contains the last name, comma, and the middle name or initial.
Example data:
Jane,Smith Ron John,Dow L Mary Jane,Dow Welsh
The result I am looking for is to capture only the first letter of the middle name. In this data example, I would need to display the following on a separate column:
-- I have a first name field that sometimes contains only the first name, -- sometimes contains the first name and the middle initial, and -- sometimes contains the first name, a space, followed by NMI (for no middle initial) -- how do I correctly grab the first letter of the middle initial in all cases? -- I have been playing with patindex but its harder than I thought. guess I need a case -- statement in addition to this. Any idea how I can do this? -- thanks!
khosara writes "I have one parameter @String with value "My name is Khosara". How to get the value only "Is khos". Could you please help me, witch method shold i use. Thank in advance."
