How To Make Database For Reference
Jun 9, 2014
I am making a project where I have to add city, agentname, rankofagent, referenceagent name the problem is that who can I make a table where suppose I add member a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p like that
b is joined by a
c is joined by b
d by c, e by d and so on,
What I want here is that how can I get the result suppose i want to see that chain of p. I want result to be printed as a,b,c,d,e,f,g,h,i,j,k,l,m,n,o either result should be in horizontal form or vertical. with or without comma. I am doing this in SQL....
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Jan 5, 2007
I am construvcting a number of databases, some of which containsensitive data and most of which do not. I am attempting to handle thesecurity issues involved in protecting sensitive data in part byputting it in its own database. If the sensitive data is in a databasecalled d_SensitiveData, and in that database there is a table called't_A' (I know, not very informative, but this is only a triviallysimple example :-), and I have a script running in a database'NotSensitiveData' (i.e. there is a statement at the beginning of thescript "USE NotSensitiveData"), how do I referenece the primary key intable 'A'?I tried a variety of things like:ALTER TABLE t_nsXADD CONSTRAINT FK_PersonID FOREIGN KEY (p_idPerson)REFERENCES SensitiveData.t_A (p_idPerson);The above is, in fact, my latest attempt. Everything I tried hasfailed precisely at the point where I specify a table in a differentdatabase. So what is the trick to refering to a table in one databasewhen using another database?This will be used in a ASP.NET v3 application where one of the things Iwant to do is have the authentication provider be a different databasefrom the one used for the main application data.Does anyone know of an example I can download from the web that doesthe same sort of thing I want to try, with some discussion of securityissues involved (i.e. what I can do to harden the application and dataserver)?NB: I am an application developer, not a DBA nor a systemadministrator.ThanksTed
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Sep 10, 2014
I am using vs 2010 to write my dtsx import scripts.I use a script component as a source to create a flat file destination file.Everything have been working fine,but then my development machine crashed and we have to install everything again.Now when i use the execute package utility to test my scripts i get the following error:
Error system.NullReferenceException: Object refrence not set to an instance reference.
In PreExecute section
TextReader = new system.io.streamreader(" file name")
In the CreateNewOutputRows:
dim nextLine as string
nextLine = textReader.ReadLine
[code]...
is there something which i did not install or what can be the error?
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Oct 29, 2015
I actually work in an organisation and we have to find a solution about the data consistancy in the database. our partners use to send details to the organisation and inserted directly in the database, so we want to create a new database as a buffer database to insert informations from the partners then make an update to the main database. is there a better solution instead of that?
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Mar 13, 2004
I need to refer to a second database from within the database that I login to. Can any one help me with how to abstract this reference? I would like to be able to change a parameter somewhere (i don't really care where) and have it effect any Stored Porcedure which references the second database.
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Apr 5, 2006
I have 2 databases in sql server. let us say database1 = db1 and database2 = db2
Now both the databases have a same table called table1 with the same fields.
IF data in db1.table1 is updated then data in db2.table2 should be updated automatically.
There are many ways we can do this. one way is to create a INSERT trigger on db1.table1.
But i would like to avoid trigger
Is there something in SQL server where I can just link table1 of db1 to db2 and delete the table1 in db2. That means db2 is using the same table that of db1.
Thanks
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Jul 20, 2005
Hi all,I have two databases DB_External and DB_Internal.I am writing some stored procedures (in DB_Internal) that reads fromthe tables in DB_External. I execute my stored procedures fromDB_Internal.Everytime I want to read the tables in DB_External, I have to refer tothe table as DB_External.dbo.tableName.Is there a better way of declaring the database DB_External up frontin the stored procedure so I don't have to pre-fix "DB_External.dbo."in all the table names?Thanks in advance,June Moore.
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Apr 29, 2008
Hi All,
I have a table [Vendor] in first database SAMPLEDB. And i have another table [Contract] in another database TESTDB. I need a foreign key in the [Contract] table (which is in TESTDB database) is reference to the other table [Vendor] which is present in the SAMPLEDB.
When i try to creating them through SQL, i received the following error message :
Msg 1763, Level 16, State 0, Line 1
Cross-database foreign key references are not supported. Foreign key 'SAMPLEDB..VENDOR'.
Is that possible to refer foreign key in external database or not?
If possible, please give solution for this. If not possible, please suggest some alternate way.
Thanks in Advance
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Mar 19, 2006
Hi There
Let me start by explaining what I am trying to achieve as there may be a better way to perform this. I have two databases and I want to refer to four tables - one in one database and three in the other in a sql select statement.
When I use the query builder in VWD I can only see tables for the database that is defined in the connection string - so therefore how do I add tables from another database? After reading a few posts I realized that all I have to do is use the syntax: database.owner.table (or [database].[owner].[table]). Unfortunately this didn't work and came up with the error "Invalid Object Name".
Assuming that I must have got the owner incorrect I used the Query Tool in SQL Server Express Edition and it worked perfectly! So my sql must be correct, but why will it not work inside VWD?
The two databases are named assessment and aspnetdb - the assessment database contains the table reviews and the aspnetdb database contains the tables TutorDetails, EmployerDetails and StudentDetails.
Here is the connection string and sql:
Data Source=.SQLEXPRESS;AttachDbFilename=|DataDirectory|Assessment.mdf;Integrated Security=True;User Instance=True
SELECT Reviews.Programme, aspnetdb.dbo.TutorDetails.Tutor_DisplayName AS [Tutor Name],
aspnetdb.dbo.EmployerDetails.DisplayName AS [Employer Name], aspnetdb.dbo.StudentDetails.Student_DisplayName AS [Student Name]
FROM Reviews INNER JOIN
aspnetdb.dbo.StudentDetails ON Reviews.StudentID = aspnetdb.dbo.StudentDetails.Username INNER JOIN
aspnetdb.dbo.EmployerDetails ON Reviews.EmployerID = aspnetdb.dbo.EmployerDetails.UserName INNER JOIN
aspnetdb.dbo.TutorDetails ON Reviews.TutorID = aspnetdb.dbo.TutorDetails.UserName
WHERE (Reviews.ReviewID = 15)
Disregard the value of '15' in the WHERE statement as this was just put in to ensure I got some valid data back, this will be replaced with a variable eventually.
I know the sql statement works properly, I think the problem may be something to do with either the connection string - any ideas would be much appreciated.
Regards
Stuart
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Jan 9, 2001
Good afternoon one and all,
I am trying to write a query that will use tables in more than one SQL database (on the same server). How do refer to the table? I have tried dbasename.tablename.fieldname but I don't think that's working.
TIA for any and all help
Gurmi
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Aug 15, 2006
I'm trying to update a table in MyDB1 with a value in MyDB2 on the same SQL server (2000)
UPDATE MyDB1.dbo.Users
SET MyDB1.dbo.Users.InstantASP_UserID = MyDB2.dbo.InstantASP_Users.UserID
FROM MyDB2
INNER JOIN dbo.aspnet_Membership a ON a.UserId = MyDB1.dbo.Users.UserID
WHERE MyDB2.dbo.InstantASP_Users.EmailAddress = a.Email
I don't want to have to create a linked server. It's on the same box.
I'm getting Invalid object name 'MyDB2'.
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Apr 9, 2006
Hi.
I am almost wrapping up a project of my own and I will have the option to restore the database, so dropping the existing one and then running the SQL script to create the database, tables, stored procedures and so on.
My question is, (using .NET 2.0 C#) - what is the best way to resolve the "cannot drop database as it is currently in use" message, or some message of the similar sort?
Even though I specified "USE MASTER" in the commandText string, there will be somewhere, in a situation, where the database will still be in use.
How can I forcefully make it NOT in use, drop it and do other things I like to?
What is the best way?
Many thanks!
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Feb 11, 2005
I've got code that on my own machine (visual studio .net 2003 and iis and sql server all exist on this box) works great. I display my test page, which loads a dropdownlist on page_load. This works great on my own machine.
When I move the code to our dev environment. Web server and database servers on separate boxes. I get the error "Object reference not set to an instance of an object" when i try to open the connection to the database. I thought it had to do with permissions and I check all through sql server and everything looks great. I then thought it was the connection string. I still haven't ruled this out, but I wrote a quick vbscript app to attach to the database and try to pull a record. The vbscript worked fine. So, the code works fine on my computer, but not on the web server. The connection does work with vbscript, but through my asp.net web app I get the "object reference" error.
All code below...
ASP.NET webpage:
private void Page_Load(object sender, System.EventArgs e)
{
if( !IsPostBack )
{
// Create a command object for the query
string mySelectQuery = "select id from vw_abcd order by ID";
SqlCommand myCommand = new SqlCommand(mySelectQuery,sqlConnection1);
sqlConnection1.Open();
DropDownList1.DataSource = myCommand.ExecuteReader(CommandBehavior.CloseConnection);
DropDownList1.DataBind();
sqlConnection1.Close();
RangeValidator1.MinimumValue = "1";
RangeValidator1.MaximumValue = DropDownList1.Items.Count.ToString();
}
}
Connection string on my machine:
workstation id=wXXXXXX01;packet size=4096;user id=testuser;password=testpass;integrated security=SSPI;data source=wXXXXXX01;persist security info=False;initial catalog=TestDB"/>
Connection string on web server:
network library=DBMSSOCN;data source=xxx.xx.xxx.xxxinstance1;user id=testuser;password=testpass;initial catalog=TestDB
vbscript:
Dim connConnection, rstresultset
strConnectionString = "driver={Sql Server};server=xxx.xx.xxx.xxxinstance1;user id=testuser;password=testpass;database=TestDB"
Set connConnection = CreateObject("ADODB.Connection")
connConnection.Open strConnectionString
Set rstresultset = createobject("ADODB.Recordset")
rstresultset.ActiveConnection = connConnection
rstresultset.Open "select id, comment from testtable", connConnection
msgbox rstresultset(0)
msgbox rstresultset.Fields(0).Value
Error message and stack trace:
Object reference not set to an instance of an object.
at System.Data.SqlClient.ConnectionPool.GetConnection(Boolean& isInTransaction)
at System.Data.SqlClient.SqlConnectionPoolManager.GetPooledConnection(SqlConnectionString options, Boolean& isInTransaction)
at System.Data.SqlClient.SqlConnection.Open()
at Web2.Drilldown.Page_Load(object sender, System.EventArgs e)
Any ideas what's going on?????
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Apr 17, 2014
I created a CLR procedure with a service reference in Visual Studio 2010 that is being used in SQL Server 2008 R2. We recently tried to deploy it to a 2012 SQL Server, but were unable to due to compatibility issues. When I tried to upgrade the package to Visual Studio 2013 I got this error message:
Unable to cast object of type 'Microsoft.VisualStudio.Data.Tools.Package.Project.DatabaseFileNode' to type 'Microsoft.VisualStudio.Data.Tools.Package.Project.Internal.FolderNode'
I tried to create this using the 2012 Data Tools, but was unable to add a service reference with the GUI. It appears Microsoft has removed this functionality. My company has a third party app that we have limited control over, which is why we need this functionality.
[URL]
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Aug 21, 2015
In database projects, VS2015, I want to create some views for me database that will reference another database table using 3 part naming reference.
Works fine in SSMS but when I try and build me project I is throwing up a reference error.
I can't import the other database into this project, so is there a way to suppress the error? I don't really want to exclude these view from the project.
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Jun 11, 2015
CREATE TABLE PRODUCT_SALES
(
Salesmanid BIGINT,
Productid BIGINT
)
INSERT INTO PRODUCT_SALES (Salesmanid,Productid) VALUES (1,1)
INSERT INTO PRODUCT_SALES (Salesmanid,Productid) VALUES (1,2)
INSERT INTO PRODUCT_SALES (Salesmanid,Productid) VALUES (1,3)
SELECT * FROM PRODUCT_SALES
/* SalesmanID is reference key from Sales Master and ProductID is reference key from Product Master. How should i restrict user through DB with any constraint check, if user tries to enter
INSERT INTO PRODUCT_SALES (Salesmanid,Productid) VALUES (1,2),
It should throw error , if possible user defined message would be more useful.
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Nov 17, 2006
Hi:
I have installed sql server 2005 express and SQL Server Management Studio Express
How can I generate a database from another copying the structure and data?
For example I have a database named Customers, I need to make a copy of Customers named Customers2. Customers2 also will be attached to the same Database Engine Server where Customers is attached.
How I Can do it?
Thanks!
P.S.
I tryied to make a copy of mdf an ldf files from Windows Explorer and renamed these files but I could not attach to the same Database Engine Server because I got an error.
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Jan 31, 2008
Hi,
at work all the databases i use are only accessible via the local network, i am wanting to take a copy of the databases and save them as a database file so i can burn them onto cd and take home with me so i can get some extra work done on the weekend (i'd also like to start doing this so i have backed up copies of the database incase anything happens to it)
i was wondering how i can do this? are there any tutorials on the web that someone can point me to? i have SQL Server 2005 Management Studio Express.
TIA
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Nov 14, 2003
hi
how can i make a user give it a name ReportUser and a password msdn for a certain database named on the sql server 2000 and thank you for your help and oyur time
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Apr 4, 2002
Hi!
Do you now if it is possible to make database unavailable for users after business hours and how.
Thank you in advance,
Elena.
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Nov 28, 2005
No, I don't need a step-by-step (necessarily). I've been looking at W3Schools tutorial and it says to:
Code:
CREATE TABLE Person
(
LastName varchar,
FirstName varchar,
Address varchar,
Age int
)
But what is that? A text file saved with a .sql extension. Something typed at a command prompt? Is there an SQL interface?
--William
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Jun 8, 2007
I work as a computer repair tech for my company and have been offered the opportunity to do a project. I'm looking to make a database of about 2000 peoples fingerprints (2 copies of each finger). We have Microsoft SQL Server but I have no Idea where to start. The vision is, to have an RFID scanner and have everyone swipe their badge then scan their prints and it automatically associates their prints with the badge number. Is there an easier or more simple way to do this or do you have any pointers on where to start? any help will be greatly appreciated. Thanks.:angel:
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Aug 3, 2015
There is a need to make a backup of a database to URL. how to do this.
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Jul 23, 2005
Hello faculties,We've a production database that is being used by one of our clientsas a backend for his website. The database size is around 1GB.Recently we added some tables to our local database which is areplica of the production database. Now we need to apply the samechanges at the production one aslo.I've no clue about what steps should i implement.Please guide me!Thanks in advanceDebian*** Sent via Developersdex http://www.developersdex.com ***
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Jan 8, 2008
Hi
I need to make a copy of a sql server database for test purposes but the database is live
how would i make a copy of it without it being affected?
thanks
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Dec 26, 2007
Hallow
My code does not insert Data into Database, please can someone look on it and give a technical problem over here please
It does not generate any error please, when I CLICK THE BUTTON IT DOES NOT GENERATE ERROR, IT GIVE ME THE MESSAGE THAT ITEM ADDED, BUT WHEN I LOOK MY TABLE NOTHING ID INSIDE Sub Add_To_Cart(ByVal Src As Object, ByVal Args As EventArgs)
Dim FVProductID As Label = FormView1.FindControl("ProductID")
Dim FVProductName As Label = FormView1.FindControl("ProductName")Dim FVProductPrice As Label = FormView1.FindControl("ProductPrice")
Dim DBConnection As SqlConnection Dim DBCommand As SqlCommand
Dim sql As String
Dim SQLAddString As String
DBConnection = New SqlConnection("Data Source=MANDARISQLEXPRESS;Initial Catalog=SHOES;Integrated Security=True")
DBConnection.Open()
If Not Session("OrderID") Is Nothing Then
sql = "SELECT Count(*) FROM ShoppingCart " & _ "WHERE OrderID = '" & CType(Session("OrderID"), String) & "' " _
& "AND ProductID = '" & FVProductID.Text & "'"
DBCommand = New SqlCommand(sql, DBConnection)
If DBCommand.ExecuteScalar() = 0 Then
SQLAddString = "INSERT INTO ShoppingCart (OrderID, ProductID, OrderDate, ProductName, ProductPrice, ProductQnty) VALUES (" & _
"'" & CType(Session("OrderID"), String) & "', " & _"'" & FVProductID.Text & "', " & _
"'" & Today() & "', " & _"'" & FVProductName.Text & "', " & _
"'" & FVProductPrice.Text & "', 1)"DBCommand = New SqlCommand(SQLAddString, DBConnection)
DBCommand.ExecuteNonQuery()
End If
End If
DBConnection.Close()
Src.Text = "Item Added"Src.ForeColor = Color.FromName("#990000") Src.BackColor = Color.FromName("#E0E0E0")
Src.Font.Bold = True
End Sub
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Apr 12, 2008
I am setting up a web application, where the application needs to access a database. I have created the user (for the application) and it can log in to the SQL 2005 Sp2 server, but when I try to open the required database using Server Management Studio, it says "The database [name] is not accessible. (ObjectExplorer)"How do I make a database accessible to a login, using Server Management Studio?
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Apr 16, 2002
Hi all,
I found a database file and a log file over 2G on mssql 2000 server. Actually, they only need around 200M. I try to backup, truncate the database in order make the size smaller. But the size cannot be smaller. How can I do it?
Simon
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Jun 16, 2003
I want to remove hard codings like below
servername.EcomAdminDB.dbo.tablename
to
ecom_link.dbo.tablename
I am using this in views
how we do it can somebody send me links on this ASAP.
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Aug 2, 2004
When you make a join, it may look something like this:
SELECT Products.ProductName from Products, Categories
WHERE Categories.CategoryName = 'Seafood' AND
Products.CategoryID = Categories.CategoryID
In this query you use 'Products.CategoryID = Categories.CategoryID' to give the relation between the two tables. But if you already added the relationships to your database, this should be known.
My question is, why is it necessary to add the relation in the query when the relationships are already in the database? Is it somehow possible to ommit the relation in the query and make use of the relationships in the database.
Kind regards,
Iwan Rotteveel
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Mar 13, 2007
I'm trying to make a copy of our 2005 SQL Server production database (25 meg) so we can install it in a new office being set up in another state. I have right clicked on the database I want to copy, selected Tasks, then option Copy Database... I'm trying to put the copy on the same server, and I am doing this work signed into the Management Studio as "sa" The wizard creates 5 steps, the first 4 run ok, then the 5th step runs for 10 to 20 seconds, then quits. The message says to look in the log on the server for the reason it quit. The only log I can find is the Error Logs at the bottom of the Object Explorer window. I look into the current log, then select the SQL Server log, the current one. There is only one line in here about the copy I just tried, and it only says "Starting up database XXXXXXXX" which is the database I'm trying to create through the copy process. Within Database Mail, SQL Agent, and Windows NT log lines, I can not find any reference to the copy job that just bombed. Needless to say, I'm VERY new to all of this SQL Server admin stuff. If someone could point me in the right direction, it would really help! Thanks!
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Apr 25, 2007
How can I make my existing database case sensitive.
How to make SQL Queries also case sensitive from Application
ie:while running from VB,
Should work
rs.open"Select * from Employees"
Should Not work
rs.open"Select * from employees"
error should come as invalid table name.
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Jul 16, 2007
Hi All:I need to make my database unavailable when i am loading the db. Thishappens daily and the db is not connected to any online app, to makethe app unavailable. It is queried thru an Access and hence availableall the time.The load happens daily for an hour in the morning.Is there anyway to make it inaccessible to users while loading dataand then make it accessibleThank youRS
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