I've got a trouble with my query and left outer joins. I've got 2 tables, table A and B, both have the same record called ID. I used this query:
SELECT *
FROM A LEFT OUTER JOIN B ON A.ID = B.ID
This is OK and works fine, my trouble comes when i have a duplicated ID on both A and B. Instead of return 2 fields, it returns me 4.
Is there some way to force SQl server to return only the first founded on B, but the 2 duplicated IDs on the A table?
I am querying my dBase "Reservations" to obtain a range of dates for rooms in our hotel that are available for a vacationer to reserve...
this is the my present SQL structure (two tables(roomReserve & roomDescribe inner joined) ********************** SELECT roomReserve.availibility, roomDescribe.numRooms
FROM roomDescribe INNER JOIN roomReserve ON roomDescribe.code = roomReserve.code
WHERE (((roomReserve.availibility) Between 8/20/99 And 8/23/99) AND ((roomDescribe.numRooms)>0));
**************************** The problem is that I do not want any room open dates (roomReserve.Availibility) to come up if any of the days in between the date range have 0 rooms available (in other words no room available on that date) (roomReserve.numRooms)>0
But they do because the query is not correctly written to be an all or none recordset for the date range time peroid…
For example, if I query for the date range of 8/20/99 to 8/23/99 using a criteria that the room must be available (>0), and let's say the date 8/21/99 has 0 rooms available for the King Fireplace room, then the query's results set gives me a list of the other 3 dates (8/20, 8/22, 8/23) for when the King Fireplace room is available...
I don't want anything thing for that date range to come out if any of the dates (within that range 8/20-8/23) have a room status = 0 during that time period...
I need a way to receive an all or none recordset result... with only one query statement…
I do not want to have to query a query… if that's at all possible…
I just started working with MS SQL. I'm attempting to find the equivalent of the MySQL commands STATUS and SHOW STATUS.
Essentially, I want to connect to the database from a .net app, check the status, such as how many connections, table locks, errors, etc... and display that information on my application.
Ok in Replication for sql 2000,' what happens when a query such as 'update tableA set a=1 where id=5' affects 1 row. What will happen when it does not affect any row.
Somebody can give some tips or hints for speed up my querys and procedures from sql and get more performance, what is best to use, joins o cursors, using cursors can give me more performance?
I have two databases with table structures exactly the same. The query in one database works and returns correctly. The same query (copied and pasted) in another database returns the correct records but completely ignores the order by. Even stranger, when you are creating the query under modify and run it, it is fine. But when I right-click on the query and go to 'Open View' then the query does not return correctly. Below is the query:
SELECT TOP (100) PERCENT pf.description AS incentive, CAST(i.targetc AS FLOAT) AS targetc, i.targetp, b.basis, d.description, i.iSelect, i.direction, pf.pValue, pf.pFigure FROM dbo.PerfFactorWeights AS pfw INNER JOIN dbo.PerfFactors AS pf ON pfw.incentiveID = pf.incentiveID INNER JOIN dbo.Incentive AS i ON pfw.incentiveID = i.incentiveID AND pfw.basis = i.basisID INNER JOIN dbo.Basis AS b ON i.basisID = b.basisID INNER JOIN dbo.Division AS d ON pfw.division = d.uniqueID ORDER BY incentive, d.uniqueID, b.basis
Hi there!I'm programming in delphi and new to querieng MS SQL Server. Is there a wayto monitor the queries sent to the server and something of the returns. Atleast execution time would be interesting ...Thx in advance,Fritz
Someone asked me a curious question.Can I execute a query to sql server from a bat file? how?If not is there a simple scripting laguage that this person might use todrive his process that is similar to a dos bat file?
Hello,Could some clarify for me? I’ve been told that I should add lock statements to my database write querys (update, delete, insert). I’m not sure If it’s necessary though. The only documentation I’ve found so far is how to implement a lock statement with threading but I’m not using the threading namespace. What best practice and how would I implement this without threading or should I be using threading?Thanks in advance!
I'm looking for a solution to run querys (create databases ed) after a silent installation of SQL 2005 Express edition (example with a .sql file). So users can run a installation unattended with all databases installed and so on.
What I got is a document about how to run a silent installation (document " Using Command Prompt Options to install SQL Server Express") but this docs there's no solution how to run querys after the installation.
This is driving me a little nuts, I have been testing locally with SQL Server Express 2005 and this has not been a problem, however now that I have restored the databases to SQL Server 2005 (not express) When I go into SQL Server Management Studio open a table the option for changing a query type is greyed out has anyone seen this or have any ideas how I can get this working. Thanks, Terry
I have a column colC in a table myTable that has a value (e.g. '0X'). The position of a non-zero character in column colC refers to the ordinal position of another column in the table myTable (in the aforementioned example, colB).To get a column name (i.e., colA or colB) from table myTable, I can join ("ON cte.pos = cn.ORDINAL_POSITION") to INFORMATION_SCHEMA.COLUMNS for that table catalog, schema and name. But I want to show the value of what is in that column (e.g., 'ABC'), not just the name. Hoping for:
COLUMN_NAME Value ----------- ----- colB 123 colA XYZ
I've tried dynamic SQL to no success, probably not executing the concept correctly..Below is what I have:
Hello, I have a table T1 with fields ID, F1, F2, F3, F4, F5, F6….
I need to find if there is duplicated rows based on F1, F2, F3 columns. If there is set F5=’minimum’ where ID is MIN(ID). So the smallest should be set as minimum. How can I do this in a stored procedure?
Hi, All I have a problem with one table. This table is corrupted so I drop the table and recreate the table..(Of course I export data) After that I try to put the primary key to new table but it won't allow me to do it. Error message says " There are duplicated key existed" Therefore I open up the EM and take a look at that table. There is key in that table but not Primary key..(also from the query analyzer using sp_help) My question to U is how can I find this duplicated key and delete that info? I think somewhere in the system table contains this info but I don't know where:-(((
I have a column of primary key, integer and identity. It has been working fine til 2 days ago. Though the column is IDENTITY, it duplicated number by triple! How's that possible?
Has anyone came across this problem? If you have, how did you fix it?
Hello, I have a table T1 with fields ID, F1, F2, F3, F4, F5, F6€¦.
I need to find if there is duplicated rows based on F1, F2, F3 columns. If there is set F5=€™minimum€™ where ID is MIN(ID). So the smallest should be set as minimum. How can I do this in a stored procedure?
I have a table that I truncate with an execute sql task, which uses the following statement: truncate table dbo.tablename.
Afterwards I fill the table with data. Sometimes it gives an error that there are duplicated keys in the table, but it's truncated before the fill... Is there anyone who has an idea on this matter?
I have just started developing in SQL Express in the last 2 months so still learning. The problem I€™m having with my stored procedure is that I get duplicate rows in my results. The row is a duplicate in terms of column 'Job No' as when the query runs in access only one instance of each 'Job No' is returned but when I recreate the query in SQL server I get a number of rows back for the same 'Job No'? How would I go about getting just 1 instance of each 'Job No' back? With column 'Days to Date' showing the total 'Days to Date' for each Job No. Please see Ms Access results if unsure of what I€™m asking.
A copy of the stored procedure is below and a sample of the out-put with Ms Access results at very bottom.
ALTER PROCEDURE [dbo].[sl_DaysDonePerJob] AS
SELECT CASE WHEN [Job No] IS NULL THEN '' ELSE [Job No] END AS [Job No], SUM([Actual Days]) AS [Days to Date], CONVERT(nvarchar(10),MIN(SessionDate),101) AS [Start Date],
CONVERT(nvarchar(10),MAX(SessionDate),101) AS [End Date],
MAX(CASE WHEN DATEPART(MM,SessionDate)=1 THEN 'Jan'
WHEN DATEPART(MM,SessionDate)=2 THEN 'Feb'
WHEN DATEPART(MM,SessionDate)=3 THEN 'Mar'
WHEN DATEPART(MM,SessionDate)=4 THEN 'Apr'
WHEN DATEPART(MM,SessionDate)=5 THEN 'May'
WHEN DATEPART(MM,SessionDate)=6 THEN 'Jun'
WHEN DATEPART(MM,SessionDate)=7 THEN 'Jul'
WHEN DATEPART(MM,SessionDate)=8 THEN 'Aug'
WHEN DATEPART(MM,SessionDate)=9 THEN 'Sep'
WHEN DATEPART(MM,SessionDate)=10 THEN 'Oct'
WHEN DATEPART(MM,SessionDate)=11 THEN 'Nov'
WHEN DATEPART(MM,SessionDate)=12 THEN 'Dec' END) AS 'End Month'
I have many data in a table in which some rows are duplicated. How can I, for all duplicated rows, delete the extra rows and leave only one? You may assume checking one column is enough to tell if a row is duplicated.
I have a unique account number for every record in the table (hence the p-key) however I have route numbers that are duplicated in the table. How do I find all records that have a ROUTE_NUMBER duplicated.
In other words, how do I query records where the route number occurs more than one time in the table.
I would like the following results....
ACCOUNT NUMBER ROUTE NUMBER NAME STATE 12345 1 WMT NY 48734 1 CBS TX 3945857 1 NBC LA
Need to remove the duplicated rows from a table which has text/ntext/image type columns. The table does not have any PK/Unique column. (I accept its a bad data model). But currently changing the data model is not possible. Hence doing changes in application.
I couldn't do 'SELECT DISTINCT * from table', since the table has text columns. Though there is no PK constraint, If I know that col1 and col2 are join PKs in the table, Is that possible to select the distinct rows from such a table.
Hi, I have a table named "std_attn", where, by some bad coding, lots of duplicated rows have been created. And the table don't have any PK. So Now tell me the way to remove the duplicaies..................
I am currently working to solve this problem that i am facing. I just cant' get my desired solution to my problem. As per below is the current db view. emp_id skill level years remarks 2541COMPUTERBAIK1<null> 2541WORD PROCESSINGBAIK1<null> 2541EXCEL BAIK1<null> 2541POWERPOINTBAIK1<null>
how do i get this repeated emp_id to have a view of..
emp_id skill level 2541COMPUTER.wordprocessin,excel,powerpointBAIK,baik,baik,baik years remarks 1,1,1,1 <null>,<null>,<null>,<null>
i just can't seem to get this comin up.. please kind advise thanks all!
ColumnA ColumnB ColumnC ------------------------------- Alice Lukas Alice.Lucas James Redford James.Redford James Redford James.Redford Michael Jackson Michael.Jackson John Brown John.Brown John Brown John.Brown John Brown John.Brown George Gotham George.Gotham
I want to update duplicated values at ColumnC like:
Alice Lukas Alice.Lucas James Redford James.Redford James Redford James.Redford1 Michael Jackson Michael.Jackson John Brown John.Brown John Brown John.Brown1 John Brown John.Brown2 George Gotham George.Gotham
How can i do it?
Thanks in advance!
Note: Table is for creating email aliases from names...
Hi all. i have the following function below,which use to retrieve the order detail from 2 table which are order detail and product. i have many duplicated order id in order detail, and each order id has a unique product id which link to product to display the product information. however when i run the following function below . its duplicated each product info and dsplay in the combo box. May i know whats wrong with my code?
Public Sub ProductShow()
Dim myReader As SqlCeDataReader Dim mySqlCommand As SqlCeCommand Dim myCommandBehavior As New CommandBehavior Try connLocal.Open() mySqlCommand = New SqlCeCommand mySqlCommand = connLocal.CreateCommand mySqlCommand.CommandText = "SELECT * FROM Product P,orders O,orderdetail OD WHERE OD.O_Id='" & [Global].O_Id & "' AND P.P_Id=OD.P_Id " myCommandBehavior = CommandBehavior.CloseConnection myReader = mySqlCommand.ExecuteReader(myCommandBehavior) While (myReader.Read()) cboProductPurchased.Items.Add(myReader("P_Name").ToString()) End While myReader.Close() Catch ex As Exception MsgBox(ex.ToString) Finally connLocal.Close() End Try
> This is a common problem with some solution[color=blue]>>[/color]/************************************************** *********************************** Problem:* Determine the Duplicated Records in a table using single SELECT.** We shall be using Northwind database, add some duplicate records.** Here we want to know if 2 columns (CompanyName,* PHone) are duplicated in a table.*** ShipperID CompanyName Phone* ----------- ------------------------- ------------------* 1 Speedy Express (503) 555-9831* 2 United Package (503) 555-3199* 3 Federal Shipping (503) 555-9931* 4 Federal Shipping (503) 555-9931* 5 Speedy Express (503) 555-9831* 6 Federal Shipping (503) 555-9931***************************************************** **/================================================== SOLUTION 1: Gives me the IDs that are duplicated.================================================== SELECTShipperID, CompanyName, PhoneFROMSHIPPERSWHEREEXISTS (SELECTNULLFROMSHIPPERS bWHEREb.CompanyName = SHIPPERS.CompanyNameAND b.Phone = SHIPPERS.PhoneGROUP BYb.CompanyName, b.PhoneHAVINGSHIPPERS.ShipperID < MAX( b.ShipperID ))/* ********************* Output results********************/ShipperID CompanyName Phone----------- ----------------------------------------------------------------1 Speedy Express (503) 555-98313 Federal Shipping (503) 555-99314 Federal Shipping (503) 555-9931(3 row(s) affected)================================================== ===========SOLUTION 2: Gives me the data which are duplicate butnot the IDs================================================== ===========SELECTCompanyName, PhoneFROMSHIPPERSGROUP BYCompanyName, PhoneHAVINGCOUNT(*) > 1/* ********************* Output results********************/CompanyName Phone---------------------------------------- ------------------------Speedy Express (503) 555-9831Federal Shipping (503) 555-9931(2 row(s) affected)
