I am trying to determine the next available order id using the method below. It works provided the table has a record in it. If it doesn't I get the error "Input string was not in a correct format." I am certain that it is because the query is returning a value of NULL. How can get around that or check for the NULL value?
' Establish data connection...
Dim sqlConn As New SqlConnection(ConfigurationSettings.AppSettings("connectionstring"))
'Determine order id number...
Dim order_id As Integer
Dim strSQL As String
strSQL = "Select MAX(order_id) from mkt_order"
Dim sqlCmd As New SqlCommand(strSQL, sqlConn)
Dim sqlDA As New SqlDataAdapter(sqlCmd)
Dim sqlDS As New DataSet
sqlDA.Fill(sqlDS, "item")
If sqlDS.Tables(0).Rows.Count <> 0 Then
order_id = Convert.ToInt32(sqlDS.Tables(0).Rows(0)(0).ToString()) + 1
Else
order_id = 1
End If
I'm working on a sproc that determines the next order id for a specified customer. The table has
custid int,
ordernum varchar(10)
Data is:
1000, 1000-001
1000, 1000-002
1001, 1001-001
1000, 1000-003
I need to know the next ordernum for the specified custid. For example, GetNextOrderNum(1000) should return 1000-004. GetNextOrderNum(1002) should return 1002-001 (since there aren't any orders yet).
I have a VB.NET function that returns an array of Integers. Say, FunArray = [2, 3, 5, 8, 6, 23, 1, 10, 20 , 4, 54] One characteristic of the array is that no two numbers repeat - it reflects the IDs of my Users table. And, that it is not ascending or descending.
What I would like to know is how do I sort my query in the order of the integers in this array? Ideally, I would like to use ORDER BY for this query.
I am trying to order by the field and direction as provided by input parameters @COLTOSORTBY and @DIR while using a CTE and assigning Row_Number, but am running into syntax errors.
Say I have a table called myTable with columns col1,col2,col3,
Here's what I'm trying to do
with myCTE AS ( Select col1 ,col2 ,col3 ,row_number() over (order by case when(@DIR = 'ASC') then
case when @COLTOSORTBY='col1' then col1 asc when @COLTOSORTBY='col2' then col2 asc else col3 asc end else
case when @COLTOSORTBY='col1' then col1 desc when @COLTOSORTBY='col2' then col2 desc else col3 desc end end from myTable )
Please let me know what i can do with minimal code repetition and achive my goal of dynamically sorting column and direction. I do not want to use dynamic SQL under any circumstance.
Finding the "pieces of information" I need to successfully install the SQL Server Express edition is so complex. Uninstalls do "not" really uninstall completely, leading to failure of SQL install. Can you suggest a thorough, one-stop site for directions for the order of app uninstalls and then the order for app installs for the following...
SQL Server Express edition
Visual Studios 2005
Jet 4.0 newest upgrade
.Net Framework 2.0 (or should I use 3.0)
VS2005 Security upgrade
Anything else I need for just creating a database for my VS2005 Visual Basic project?
I was trying to use MS Access as my backend db but would like to try SQL Express
In SQL sERVER 2008, I have two fields - Depatment and Employees. I need to sort the result set by employee number ascending order, with following exception
1)when department number = 50 - the preferred order is Employee # - 573 followed by 551-572 (employee # belong to Dept 50 = 551-573)
2)When Department number = 20 – the preferred sort order is Employee # 213-220, followed by Employee # 201-213 (employee # belong to Dept 20 = 201-220)
I never paid much attention to this before but I noticed this today in a new table I was creating.
For tables defined in the tabular model the table properties have something like SELECT Blah FROM TableName ORDER BY Blah Then in the tabular model the table's data is in the same order it was ordered by in the data source for the table.
I have a date table I setup and I noticed it is NOT respecting the sort order.
I have it sorted by DateID which sorts with the oldest date first and newest date as last row.However, the table that is imported and stored in the data model is not in that order.
I can of course manually sort the rows in BIDS/DataTools, but I find this discrepancy odd.
Would this have negative impacts on the EARLIER function for example if the data rows are not in the order specified?
INSERT INTO PurchaseOrder (PurchaseOrderDate, SupplierID) VALUES(@date, @SupplierID)
END
SET @POno = @@IDENTITY
RETURN
However, how do i make it that it will automatically adds item under the POno being gernerated? can i use a trigger so that whenever a Insert for PO is success, it automaticallys proceed to adding the items into the table PurcahseOrderItem?
hi basically what i have is 3 text boxes. one for start date, one for end date and one for order id, i also have this bit of SQL SelectCommand="SELECT [Order_ID], [Customer_Id], [Date_ordered], [status] FROM [tbl_order]WHERE (([Date_ordered] >= @Date_ordered OR @Date_ordered IS NULL) AND ([Date_ordered] <= @Date_ordered2 OR @Date_ordered2 IS NULL OR (Order_ID=ISNULL(@OrderID_ID,Order_ID) OR @Order_ID IS NULL))"> but the problem is it does not seem to work! i am not an SQL guru but i cant figure it out, someone help me please! Thanks Jez
Hi, We got a problem. supposing we have a table like this:
CREATE TABLE a ( aId int IDENTITY(1,1) NOT NULL, aName string2 NOT NULL ) go ALTER TABLE a ADD CONSTRAINT PK_a PRIMARY KEY CLUSTERED (aId) go
insert into a values ('bank of abcde'); insert into a values ('bank of abcde'); ... ... (20 times)
select top 5 * from a order by aName Result is: 6Bank of abcde 5Bank of abcde 4Bank of abcde 3Bank of abcde 2Bank of abcde
select top 10 * from a order by aName Result is: 11Bank of abcde 10Bank of abcde 9Bank of abcde 8Bank of abcde 7Bank of abcde 6Bank of abcde 5Bank of abcde 4Bank of abcde 3Bank of abcde 2Bank of abcde
According to this result, user see the first 5 records with id 6, 5, 4, 3, 2 in page 1, but when he tries to view page 2, he still see the records with id 6, 5, 4, 3, 2. This is not correct for users. :eek:
Of course we can add order by aid also, but there are tons of sqls like this, we can't update our application in one shot.
So I ask for your advice here, is there any settings can tell the db use default sort order when the order by column value are the same? Or is there any other solution to resolve this problem in one shot?
Hi,guys!I have a table below:CREATE TABLE rsccategory(categoryid NUMERIC(2) IDENTITY(1,1),categoryname VARCHAR(20) NOT NULL,PRIMARY KEY(categoryid))Then I do:INSERT rsccategory(categoryname) VALUES('url')INSERT rsccategory(categoryname) VALUES('document')INSERT rsccategory(categoryname) VALUES('book')INSERT rsccategory(categoryname) VALUES('software')INSERT rsccategory(categoryname) VALUES('casus')INSERT rsccategory(categoryname) VALUES('project')INSERT rsccategory(categoryname) VALUES('disert')Then SELECT * FROM rsccategory in ,I can get a recordeset with the'categoryid' in order(1,2,3,4,5,6,7)But If I change the table definition this way:categoryname VARCHAR(20) NOT NULL UNIQUE,The select result is in this order (3,5,7,2,6,4,1),and 'categoryname 'in alphabetic.Q:why the recordset's order is not the same as the first time since'categoryid' is clustered indexed.If I change the table definition again:categoryname VARCHAR(20) NOT NULL UNIQUE CLUSTEREDthe result is the same as the first time.Q:'categoryname' is clustered indexed this time,why isn't in alphabeticorder?I am a newbie in ms-sqlserver,or actually in database,and I do havesought for the answer for some time,but more confused,Thanks for yourkind help in advance!
Hi, We got a problem. supposing we have a table like this:
CREATE TABLE a ( aId int IDENTITY(1,1) NOT NULL, aName string2 NOT NULL ) go ALTER TABLE a ADD CONSTRAINT PK_a PRIMARY KEY CLUSTERED (aId) go
insert into a values ('bank of abcde'); insert into a values ('bank of abcde'); ... ... (20 times)
select top 5 * from a order by aName Result is: 6 Bank of abcde 5 Bank of abcde 4 Bank of abcde 3 Bank of abcde 2 Bank of abcde
select top 10 * from a order by aName Result is: 11 Bank of abcde 10 Bank of abcde 9 Bank of abcde 8 Bank of abcde 7 Bank of abcde 6 Bank of abcde 5 Bank of abcde 4 Bank of abcde 3 Bank of abcde 2 Bank of abcde
According to this result, user see the first 5 records with id 6, 5, 4, 3, 2 in page 1, but when he tries to view page 2, he still see the records with id 6, 5, 4, 3, 2. This is not correct for users. Of course we can add order by aid also, but there are tons of sqls like this, we can't update our application in one shot. So I ask for your advice here, is there any settings can tell the db use default sort order when the order by column value are the same? Or is there any other solution to resolve this problem in one shot?
I have created view by jaoining two table and have order by clause.
The sql generated is as follows
SELECT TOP (100) PERCENT dbo.UWYearDetail.*, dbo.UWYearGroup.* FROM dbo.UWYearDetail INNER JOIN dbo.UWYearGroup ON dbo.UWYearDetail.UWYearGroupId = dbo.UWYearGroup.UWYearGroupId ORDER BY dbo.UWYearDetail.PlanVersionId, dbo.UWYearGroup.UWFinancialPlanSegmentId, dbo.UWYearGroup.UWYear, dbo.UWYearGroup.MandDFlag, dbo.UWYearGroup.EarningsMethod, dbo.UWYearGroup.EffectiveMonth
If I run sql the results are displayed in proper order but the view only order by first item in order by clause.
Has somebody experience same thing? How to fix this issue?
insert into test_sort values('Non-A'); insert into test_sort values('Non-O'); insert into test_sort values('Noni'); insert into test_sort values('Nons');
then execute the following selects: select * from test_sort order by cast( 1 as nvarchar(75));
select * from test_sort order by cast( description as nvarchar(75));
I have a DB with items which can have lengths from 0 to 400 meter.In my resultset I want to show the items with length 1-400 meter and then the results with length 0 meterHow to build my SQL?
Lets say I have a table named [Leadership] and I want to select the field 'leadershipName' from the [Leadership] Table.
My query would look something like this:
Select leadershipName From Leadership
Now, I would like to order the results of this query... but I don't want to simply order them by ASC or DESC. Instead, I need to order them as follows:
Executive Board Members, Delegates, Grievance Chairs, and Negotiators
My question: Can this be done through MS SQL or do I need to add a field to my [Leadership] table named 'leadershipImportance' or something as an integer to denote the level of importance of the position so that I can order on that value ASC or DESC?
I have some hierarchical data in a table. Say for example:
Parent Child ------------------------ NULL 1
1 2
1 3
2 4
2 5
3 6
3 7
5 8
5 9
7 10
7 11
11 12
11 13
Now I want to be able to use CTE's to be able to traverse this tree in 1) level by level order 1,2,3,4,5,6,7,8,9,10.... 2) in order 1,2,4,5,8,9,3,6,7,10,11,12,13...
What would be the aueries for this. Using the following i get: 1,2,3,6,7,10,11,12,13,4,5,8,9 (interesting and potentially useful) but I would like to be able to experiment with the aforementioned orders as well.
Hi! For the Orders table (let's assume for the Northwind database), I'm trying to get the order id of the latest order for every customer. That means that the result should be one record per customer and that would display CustomerID and OrderID.
How to determine the value for the bar in Neural Network Viewer? I know the value is displaying in the tooltips when we pointing to the bar in the table but i don't know how to get them. So where can i get those of calculation or data of score, probability of value1 and 2, and lift for value1 and 2 ? Is it get from the Microsoft Neural Network Content Viewer? which column and how to calculate? If not, please advise.
Hope my question is clear.
I am looking forward to hearing from you shortly and thanks a lot in advance.
We have a web application (ASP) running on SQL Server 7.0. Recently, the users are getting quite a lot of timeouts on the database:
Microsoft OLE DB Provider for ODBC Drivers error '80040e31'
[Microsoft][ODBC SQL Server Driver]Timeout expired
The database is not supposed to be doing too much work, so I can't understand why these timeouts are occuring. How can I determine the cause of the timeouts?
The cause could probably anything from a trigger that's taking too long, a query that's taking too long, or simply bad database design.
I've looked at SQL Server's Profiler, but could not yet use it successfully to give me any hints of what could cause the timeouts.
Any ideas of how I can use Profiler, Performance Monitor, or any other tool(s) to see what is happening in the background in the database, i.e. how much processing a trigger is using, etc.
Thanks very much! --- Gert Lombard OSI Airport Systems South Africa
I'm new to full text catalogs and we have a vendor who's code utilizes them. The database server is SQL 2005 and I am noticing the following message in the SQL log every minute.
Changing the status to MERGE for full-text catalog "ResearchCatalog" (5) in database "DBA_Test" (11). This is an informational message only. No user action is required.
A SQL job is running the following command every minute.
I've been doing a lot of reading on this and my head is starting tohurt! It seems to be quite a feat to work out how much memory isactually being used by our server.I'm running W2K advanced server with SQL 2000 EE, 8GB of RAM, a min of4GB and a max of 6GB is assigned to SQL server.I'm trying to work out whether we've assigned enough or toomuch/little memory to SQL server. My first thought was to let SQLdymanically manage its own memory and see how much it uses, of coursewhen AWE (/3GB /PAE) is enabled it will just use all that isavailable.In perfmon "target server memory" = 6.1GB, "total server memory" =6.1GB, "total pages" = 768000 ( x 8KB = 6.1GB).My second thought was to use "total pages" - the average "free pages"= average mem used, therefore giving me the average amount of memoryused by SQL. I found out that SQL uses a min of 4GB (the min weassigned) and the max of all the memory, 6GB.Is there an easier way of finding out how much memory is actually usedin this situation or is going by the above average the best way?What i'm unsure about is will SQL just use all memory assigned to ituntil it has the whole DB in memory? 20GB including indexes etc....Any help would be greatly apprechiated.
I need to determine when (maybe) and if (definitely) a SQL Agent job will run again. I need to maintain a table of the next pending execution for each job. I need to be able to update this table from within a SQL Agent job, but preferably from within an executing SSIS package in the job. Is this possible and if so, any suggestions on how?
"Deterministic functions always return the same result any time they are called with a specific set of input values and given the same state of the database. Nondeterministic functions may return different results each time they are called with a specific set of input values even if the database state that they access remains the same."
I have a report that has a table with detail grouping. This table shows the sales by day for each product. The users only want to see the date field for the first item in the group. After that, they do not want to display this field (to reduce the data on the report). However, when the data wraps to a second page, they want the date to appear on the first row of the new page.
Is there any way to determine if a row is the first row on a page?
I tried using the RowCount, but that continues from the previous page.
since I am kind o'new with SQL, I preffer get an advice fro you pro's: I created an application which performs access to a database on an SQL server. the application will be used by a few different users, each on a different computer. the application calls stored procedures, updatesinserts records in tables on the SQL and delete rows. what would be the best role to define the users activity ? How do I limit their activity ONLY to the specified actions ?
i am working with database mirroring and i need to be able to determine which database will be principal.
for example if server A is principle and server B is mirrored and server A is down, then server B take owner and become principle, after fixing server A i want it to be principle again,
What is the most reliable way to determine the last LSN of a database? I've looked in sys.database_files to no avail. I've also looked in msdb.dbo.backupset which is accurate but only based on backups already performed not the current state of the database.
