I am not that experienced in SQL 2005 and I'm trying to debug a stored proc (written by a far more experienced programmer which is why I'm appending here.)
At the top of the proc is the statement 'DECLARE @BillActualRoom bit'. If I understand correctly this is a local variable.
Later in the code we have the statement
'SELECT @BillActualRoom = 0 FROM BillingOptions WHERE CenterID = @CenterID'
where @CenterID is an input parameter.
The table BillingOptions does have a field called 'BillActualRoom' and it is a bit.
My question is this: Does this SQL statement make any sense at all? (My gut reaction is no but I'd like a second opinion. Can't get any consensus in the office.)
I would think that putting a local variable in like this would mean that @BillActualRoom is always equal to 0.
I have 2 tables: Table 1 has:ID,FName,Lname Table2 has:ID,PID,PFName,PLName, Flag PID is a unique number -> (hh:mm:ss) I need to run an update to table2 by setting the Flag to 1 and also creating PID. I could use a join query to do this, but I am concern about PID (hh:mm:ss), because it may take less then 1 second to update and I will have duplicate PID. Any idea what is the best way of doing this?
Well, its kind of tricky, and i got into this.For example i have a column of zip, all US city state name and abbreviation, preffered name and an alternate name of each city in US, and also non-acceptable name of each preffered name..
Can you give me a hint, how many databse should i used? for example, i search for a zip code, and the result will be the name of city or an acceptable name of city and there are non-acceptable name too..
well.i just need your opinion..hope you could get into this one.tnx
This is more a theoretical question so I do not have any DDL (working)to post.Let's say that I have a query which needs to be filtered for specificaccounts while also needing several joins to retrieve additional data.Is it better to so one big SELECT / JOIN / WHERE statement? As inSELECT * FROM T1JOIN T2 ON T2.[Col1] = T1.[Col1]JOIN T3 ON T3.[Col2] = T1.[Col2] AND T3.[Col3] = T1.[Col3]and so on...WHERE T1.[Account] IN ('123', '456', '789')OR is it better to do an inner SELECT / WHERE and pass that to a SELECT/ JOIN? As inSELECT * FROM(SELECT * FROM T1WHERE T1.[Account] IN ('123', '456', '789')) ITJOIN T2 ON T2.[Col1] = IT.[Col1]JOIN T3 ON T3.[Col2] = IT.[Col2] AND T3.[Col3] = IT.[Col3]and so on...First glance logic says that the inner select is the way to go sincethe joins would have less rows to work with, as opposed to joineverything and THEN pulling out what is not needed. But the queryplanner sometimes seems to have a mind of its own... Does it know thatrows will be pulled so it does that first? If I follow the same"structure" with many different queries does in us the same logic allthe time or do I need to try the same thing for each and check it?How does this apply to situations where there is a UNION involved? Do Ido the union and then apply WHERE and JOIN to filter out rows and getadditional data, respectively, or do I filter out rows inside the unionand take the combined set and do the JOINS?SELECT * FROM(SELECT T1.[Col1], T1.[Col2] FROM T1UNION ALLSELECT T2.[Col1], T2.[Col2] FROM T2) CTJOIN T2 ON T2.[Col1] = CT.[Col1]JOIN T3 ON T3.[Col2] = CT.[Col2] AND T3.[Col3] = CT.[Col3]and so on...WHERE CT.[Account] IN ('123', '456', '789')versusSELECT * FROM(SELECT T1.[Col1], T1.[Col2] FROM T1 WHERE T1.[Account] IN ('123','456', '789')UNION ALLSELECT T2.[Col1], T2.[Col2] FROM T2 WHERE T2.[Account] IN ('123','456', '789')) CTJOIN T2 ON T2.[Col1] = CT.[Col1]JOIN T3 ON T3.[Col2] = CT.[Col2] AND T3.[Col3] = CT.[Col3]and so on...
I have 2 tables, Customers and Organizations. 1 Customer can be under many organizations. What would be the best way to design the db (2 choices) for performance (around 50000 customers): 1) -Customer table -Organization table -Link Organization & Customer by creating a new tables with the following structure ---> CustomerID, OrgID,
2) -A Customer tables that has a field called OrgID where the orgID is stored. If the customer has more organization related to him, we add another customer record and we put the new OrgID in the OrgID column. Examples:
Customer Table -------------- CustomerID--Fname--Lname--Addresss-----OrgID --------------------------------------------- 1 Bob Marley 33 Africa org1 1 Bob Marley 33 Africa org2 1 Bob Marley 33 Africa org3
What is the better practice when joining tables in a query example 1 or 2? I've always joined tables together like example 2, but it seems that many people are advocates of example 1. Are there any differences performance wise between the two?
Example 1: SELECT * FROM authors AS a INNER JOIN publishers AS p ON a.city = p.city ORDER BY a.au_lname DESC
Example 2: SELECT * FROM authors AS a, publishers AS p WHERE a.city = p.city ORDER BY a.au_lname DESC
I need to purchase a new computer for a small medical clinic which will basically only have one purpose: to answer to read and write queries to a SQL Server 2005 which is resident on that computer. Queries come from the current 8 stations (up to 14 stations in the future). Most of the time, only 3 stations will be active at a time. Queries are mostly to access patient file information, are not complex and are short-lived.
A friend of mine who owns a computer store just quoted me for a dual quad-core Xeon 5405 2GHz system with Windows Server 2003 10 Cals. I'm concerned about the following: - What's the use in having 8 cores, each of them running at only 2GHz, when there's really only one service running (SQL Server 2005, likely Express Edition) on the computer. Does SQL Server have the capability to make use of all cores? Otherwise, why spend more for Xeon and so many cores instead of a single C2D running at a faster speed of say 3GHz ? - What would be the advantage of using a Windows Server over Windows XP in a peer-to-peer configuration? I don't buy into the 10 connection limit because the TCPIP.sys file can be altered to move that limit up, so 14 stations does not trigger the need for Windows Server in and of itself.
Hi all, I am having problem with SQL connection at Godaddy where my pool connection gets MAX OUT. When it happens, I cannot access the database.This is the thread about the problem: http://forums.asp.net/thread/1665023.aspx I just created this with "THREAD". I hope someone who has experiences with thread can give me some advice about my design. This is my first time.
static object Locked = new object(); public object ExecuteCommand(string queryStr, string type){ //*************************************************************************************// // ExecuteCommand: Returns an object // //*************************************************************************************// Thread t = null; lock(Locked) { SQLString = queryStr; switch(type) { case "ExecuteNonQuery": t = new Thread(ExecuteNonQuery); break; case "ExecuteScalar": t = new Thread(ExecuteScalar); break; case "GetDataReader": t = new Thread(GetDataReader); break; } t.Start(); t.Join(); } return null;} First of, does this work at all? It runs, but is it a good design in term of Thread? Since I use LOCK, do I still need the t.Join() function? The switch with the three cases, is that OKAY? Basically, I'm clueless. If you read my other post, you will get an idea what I'm trying to do. Any feedback would be very very appreciated. Thank you.
I was talking to my boss to day and our report request are not very consistant. We always having someone coming back to change something in our report. We were thinking of useing something called the Cube Analysis. Then it give our employees the raw data for them to run any standard query for themself. We have folks that want a report one way, but then they changed their minds and we are creating yet another report 4 or 5 times. what are your thoughts about this type of database?
What's the current opinion on UDTs? Are they valuable? Do the benefits outweigh the costs? Are they an absolute no-no? Has there been anything authorative or groundbreaking on the topic since Alex P's blog back in October 2005?
I need some other opinions on whether or not this is considered a proper database design structure.
Here is the relationship...We have PEOPLE, that each can belong to a COMPANY.
PERSON_TABLE Person_ID Company_ID
COMPANY_TABLE Company_ID
Then each person can trust other people of other companies, but can only trust 1 person per company.
My question is this. In order to maintain a constraint of 1 person per company, is it considered OK to add a the redundant column Company_ID to the PERSON_TRUSTED_TABLE(and then creating a composite primary key on the Person_ID/Company_ID) instead of just adding a trigger to the PERSON_TRUSTED_TABLE to uphold the constraint.
Trying to deal with a user complaint of slowness. Many variables looked at which look normal (Buffer cache, queue length,memory). Probably looks like a network issue. My question is what people consider acceptable when it comes to %disk time. My %disk time has increased from an average of 20% to 33% in recent months. My average disk read and average disk write have both been less than one. MY research has showed that more than 55% %disk time for ten minutes is considered a problem. Not there yet but seem to be slowly getting there. THe app running against my server is vendor written so can't change, also running log shipping which is probably inflating the numbers a little. Any opinions appreciated.
I have a server with little control over most of the codeset and db design. Recently I have seen both the Processor - %Processor time and Processor - % User time go fom about 6.3 to about 24.3. The system queue length has also gone from about .2 to 1.1. In my humble opinion both of the are signs of a problem coming (luckily the cache hit ratio is still sitting at about 99%). I have been running profiler to catch the things that take more that 4500 MS, and I can probably tie the 2 together. Any opinions, or real world comparisons appreciated
We are trying to restrict developer permissions in our development environment. One thought is to add developers to db_datareader, db_datawriter, db_ddladmin, db_securityadmin and then revoke various permissions from ddladmin and securityadmin. The goal is to allow developer to create stored procedures and assign permissions to the stored procedures.
Another option is to place all developers in the same role and ask them to create all procedures using that role name (ex: dev_role.sp_procedurename). By doing this each developer will be able to run stored procedures created by another developer. The down side is the permissions do not match Model Office/User Test and Production.
I was having a conversation with another developer about the order that the join conditions are placed. More specifically, about the order the tables are referenced in the join condition. There are two ways to do it, for example:-- Here the table that is referenced first was "declared" first. SELECT* FROM Logon LEFT OUTER JOIN Thread ON Logon.LogonID = Thread.LogonID LEFT OUTER JOIN Message ON Thread.ThreadID = Message.ThreadID
-- Here the table that is referenced first is the table being joined directly above it. SELECT* FROM Logon LEFT OUTER JOIN Thread ON Thread.LogonID = Logon.LogonID LEFT OUTER JOIN Message ON Message.ThreadID = Thread.ThreadID I realize this is not that big of a deal, but I was wondering if anyone had a good/valid reason for doing one versus the other.
i've a database where relations are hold in a special way which the projectleaders think of as "performant and uncomplicated" but which is veryquestionable to me:------------------------------------------------Table [Attributes]Fields [AttributeID] and [AttributeText]Table [Objects]Fields object stuff.... and [AttributeIDs] (varchar with 0-20 ids usually)in AttributeIDs there is a backslash separted list of Attribute-IDs like'3412278'so to get 20 object with a special attribute (which we need often) we doSELECT TOP 20 *FROM ObjectsINNER JOIN AttributesON (Objects.AttributeIDs LIKE ('%' + (CAST AttributeID AS varchar) + '\%'))ORDER BY ObjectTextps: to store data we need for communication we include a dozen of fields in*every* table and its content makes about 100 bytes/record------------------------------------------------i would do this stuff with a table to store the object/attributecorrelations.could someone tell me if that stuff makes any sense to an expert and how tovaluate it in regard of performance(we have big customers where that *is* anissue), design, scalability, pragmatism and sense ;)thanks in advance,ViperDK
I inherited this website from a previous developer that uses an Access DB as a backend. Ugh. Apparently, he was extremely limited in what databases he could use. The website is filled with problems related to connecting to this database, which is no surprise. Most of them are related to permissions to the database file, multiple user access, etc. I am thinking about moving this to a SQL Server Express DB and upgrading the site to the 2.0 framework. Most of my experience is in SQL Server, but since they can't, or won't, pay for the SQL Server Database, is this a good solution? I've considered using MySQL as well, but their host won't provide support for this. Are there any other recommended alternatives?
Hi, i need an opinion on this...to prevent the duplicate record in db,i am using unique constraints for a column or combination of column as the case may be.By reading this article http://aspalliance.com/687_Preventing_Duplicate_Record_Insertion_on_Page_Refresh.5 , i get the feeling that its not such a good idea..i am wondering,what does it imply?Does it mean that unique constraints are not reliable enough?Does it mean,it may break and let the duplicate record inserted,even though its not suppose to?I am using SQL server 2005 I have read Dino's article on dup recs and i have still not understood it completely.. i am looking for some not so complex ,full proof method,to prevent duplicate record insertion by clicking refresh or multiple (careless)clicking on submit....thanks ..
I have about a 35000 record table. There are about 14 entries in this table that relate to "sections". Each of these sections can have up to 20 values. This lends itself to a design like:
BuildingConstructionType relates to ConstructionHasTypes relates to Types
Where BuildingConstructionType is one of 14 fields in the 35000 record "big" table, ConstructionHasTypes is the one-to-one intermediary relation that relates many-to-many with Types (the sections).
Unfortunately, with 35000 records, this big_table_has_sections seems like it might bloat. Is this a good solution?
Hi to everyone,My problem is, that I'm not so quite sure, which way should I go.The user is inputing by second part application a long string (let'ssay 128 characters), which are separated by semiclon.Example:A20;BU;AC40;MA50;E;E;IC;GREENNow: each from this position, is already defined in any other table, asa separate record. These are the keys lets say. It means, a have someproperities for A20, BU, aso.Because this long inputed string, is a property of device (whih alsohas a lot of different properities) I could do two different ways ofstoring data:1. By writing, in SP, just encapsulate each of the position separatedby semicolon, and write into a different table with index of device,and the position in long stirng nearly in this way:Major device data tableID AnyData1 AnyData2 ... AnyData3123 MZD12 XX77 .... any comment text124 MZD13 XY55 ... any other commentString data Tablefk_deviceId position value123 1 A20123 2 BU123 3 AC40.....123 8 GREENThe device table, contains also a pointer (position), which mightchange, to "hglight" specified position.Then, I can very easly find all necessary data. The problem is, I needto move the device record data (from other table) very often into otherhistory table (by each update). That will mean, that I also need tomove all these records from 1 -8 for example to a separate historytable, holding the index for a history device dataset. This is a littleinconvinience in this, and in my opinion, it will use to much storagedata, and by programming, I need always to shift this properities intohistory table, whith indexes to a history table of other properities.2. Table will be build nearly in this way:Major device data tableID AnyData1 AnyData2 ... AnyData3 stringProperty pointer123 MZD12 XX77 .... any comment text A20;BU;AC40;MA50;E;E;IC;GREEN 3124 MZD13 XY55 ... any other comment A20;BU;AC40;MA50;E;E;IC;GREEN 2By writng into device table, there will be just a additional field forthis string, and I will have a function, which according to specifiedpointer, will get me the string part on the fly, while I need it.This will not require the other table, and will reduce the amout ofdata, not a lot ... but always.This solution, has a inconvinance, that it will be not so fast doing asearch over the part of this strings, while there will be no real indexon this.If I woould like to search all devices, by which the curent pointervalue is equal GREEN, then I need to use function for getting thevalue, and this one will be not indexed, means, by a lot amount ofdata, might be slow.I would like to know Your opinion about booth solutions.Also, if you might point me the other problems with any of thissolution, I might not have noticed.With Best RegardsMatik
What is the proper syntax to return records that appear in 1 table but NOT the other table? I have 2 tables that should contain the same records(based on shipping report number), so my join will use this field. How can I only return the data where the shipping report number appears in only 1 of the tables though>?
Here is a simple question. I am having difficulty accessing booksonline at Microsoft so I thought I would ask here. What is thestandard naming syntax for Sqlserver 2005? Assuming I had thefollowing table, [proddb01].[details].[dbo].[daily_tranx], how would Irefer to it in the new version?Thanks a lot!
I have tried the following, the update part i snot working. Any idea why? alter PROCEDURE dbo.SP_FeaturedClassifieds @PageIndex INT, @NumRows INT, @FeaturedClassifiedsCount INT OUTPUT
AS BEGIN select @FeaturedClassifiedsCount = (Select Count(*) From classifieds_Ads Where AdStatus=100 And Adlevel=50 ) Declare @startRowIndex INT; Set @startRowIndex = (@PageIndex * @NumRows) + 1;
With FeaturedClassifieds as (Select ROW_NUMBER() OVER (Order By FeaturedDisplayedCount * (1-(Weight-1)/100) ASC) as Row, Id, PreviewImageId, Title, DateCreated, FeaturedDisplayedCountFrom classifieds_Ads WhereAdStatus=100 And AdLevel=50 )
SelectId, PreviewImageId, Title, DateCreated, FeaturedDisplayedCount From FeaturedClassifieds Where Row between@startRowIndex And @startRowIndex+@NumRows-1 Update FeaturedClassifiedsSET FeaturedDisplayedCount = FeaturedDisplayedCount+1 Where Row between @startRowIndex And @startRowIndex+@NumRows-1 END
I have tried function too for this, but function can not update table I guess.... Can I call stored procedure for each column? How? I thought the code above would work? What am I missing?
We are into a phase of retiring SQL 2000 database and replacing with SQL 2005. Could you please guide me to get a list of all the MUST DO changes on syntax, statements/query those have been changed in 2005 when compared to 2000.
I know there is a list of new features list on site, but it doesn't tells me precisely what all syntaxes will result differently then expected in 2000. For Example - if we open help for SET ANSI_NULLS ON, we can read that MS is suggesting to avoid its use as it will be absolete in later version. So do we have a list of all such things in one place that we can read and analyse our code for changes to be done now instead of finding it later.
Hi, I'm using ComponentArt's Callback grids with Manual Paging.
The CA example grid uses Access:(http://www.componentart.com/webui/demos/demos_control-specific/grid/programming/manual_paging/WebForm1.aspx)
That SQL syntax produced is invalid in SQL Server 2005.
Example: "SELECT TOP " & Grid1.PageSize & " * FROM (SELECT TOP " & ((Grid1.CurrentPageIndex + 1) * Grid1.PageSize) & " * FROM Posts ORDER BY " & sSortColumn & " " & sSortOrderRev & ", " & sKeyColumn & " " & sSortOrderRev & ") ORDER BY " & sSortColumn & " " & sSortOrder & ", " & sKeyColumn & " " & sSortOrder
So...This is what I have (simplified), and it appears return incorrect rows on the last few pages: SELECT top 15 * FROM Posts where & sFilterString & " and Postid in (SELECT TOP " & ((Grid1.CurrentPageIndex + 1) * Grid1.PageSize) & " Postid FROM Posts where " & sFilterString & " ORDER BY " & sSortColumn & " " & sSortOrder & ") " & " ORDER BY " & sSortColumn & " " & sSortOrderRev
What other approaches has anyone used besides the "ID in (...)"?The examples I have included show the available variables: sort asc and desc, current page, number of rows on a page, etc.
I keep receiving the following error whenever I try and call this function to update my database.
The code was working before, all I added was an extra field to update.
Exception Details: System.Data.SqlClient.SqlException: Incorrect syntax near the keyword 'WHERE'
Public Sub MasterList_Update(sender As Object, e As DataListCommandEventArgs)
Dim strProjectName, txtProjectDescription, intProjectID, strProjectState as String Dim intEstDuration, dtmCreationDate, strCreatedBy, strProjectLead, dtmEstCompletionDate as String
Dim myConnection As New SqlConnection(System.Configuration.ConfigurationSettings.AppSettings("connectionstring")) Dim cmdSQL As New SqlCommand(strSQL, myConnection)
Forgive the noob question, but i'm still learning SQL everyday and was wondering which of the following is faster? I'm just gonna post parts of the SELECT statement that i've made changes to:
INNER JOIN Facilities f ON e.Facility = f.FacilityID AND f.Name = @FacilityName
OR
WHERE f.Name = @FacilityName
My question is whether or not the query runs faster if i put the condition within the JOIN line as opposed to putting in the WHERE line? Both ways seems to return the same results but the time difference between methods is staggering? Putting the condition within the JOIN line makes the query run about 3 times faster?
Again, forgive my lack of understanding, but could someone agree or disagree and give me the cliff-notes version of why or why not?
) ) ) ) ) AS timeType, Sum([2007_hours].Hours) AS SumOfHours from................
how can you convert it to sql syntax
I need to have a nested If statment which I can't do in sql (in sql I have to have select and from Together for example ( I can't do this in sql): select ID, FName, LName if(SUBSTRING(FirstName, 1, 4)= 'Mike') Begin Replace(FirstNam,'Mike','MikeTest') if(SUBSTRING(LastName, 1, 4)= 'Kong') Begin Replace(LastNam,'Kong,'KongTest') if(SUBSTRING(Address, 1, 4)= '1245') Begin ......... End End
end
Case Statement might be the solution but i could not do it.
This is the error it gives me for my code and then it calls out line 102. Line 102 is my buildDD(sql, ddlPernames) When I comment out this line the error goes away, but what I don't get is this is the same way I build all of my dropdown boxes and they all work but this one. Could it not like something in my sql select statement. thanksPrivate Sub DDLUIC_SelectedIndexChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles DDLUIC.SelectedIndexChanged Dim taskforceID As Byte = ddlTaskForce.SelectedValueDim uic As String = DDLUIC.SelectedValue sql = "select sidstrNAME_IND from CMS.dbo.tblSIDPERS where sidstrSSN_SM in (Select Case u.strSSN from tblAssignedPersonnel as u " _ & "where u.bitPresent = 1 and u.intUICID in (select intUICID from tblUIC where intTaskForceID = " & taskforceID & " and strUIC = '" & uic & "'))"ddlPerNames.Items.Add(New ListItem("", "0")) buildDD(sql, ddlPerNames)
What I am trying to create a query to check, If recDT is not value or null, then will use value from SELECT top 1 recDtim FROM Serv. Otherwise, will use the value from recDT. I have tried the below query but it doesn't work. The error says, Incorrect syntax near the keyword 'SELECT'.Incorrect syntax near the keyword 'else'.1 SELECT 2 case when recDT='' then SELECT top 1 recDtim FROM Serv else recDT end 3 FROM abc 4 Anyone can help? Thanks a lot.
Hi, i am trying to write a mulitple sql statement. basically i have 5 fields to search:
User ID FirstName LastName Department Site i would like to search the records of the database with any of the fields above, so a user can specify a last name of "smith" and a department of "finance" which would return all the smiths in the finance department. or if a user enters "john" all the johns from any department or site would appear. How would the sql statement go like for this? and could i bind a tableadapter to a datagrid to view the results? Any help would be appreciated. Thank you.
