How To Retrieve Data From SQL Server?
Mar 14, 2006
Let us suppose that there are 900 rows in One table, and that table contains neither primary key, nor Identity column.
How can I retrieve all the roows from 201 to 250?(like the middle limits)
In oracle there is a property called RowID, but is there any such item in SQL server?
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Mar 19, 2007
Last night I face performace problems in web site. I got like 100 000 users and site fails because of sql-connections.
Currently I'm making a new connection for every query, and my code looks like this:Public Shared Function executeQueryReturnDataset(ByVal strsql As String) As DataSet
Dim sqlConnection As New SqlConnection(Connstr)
Dim sqlCommand As New SqlCommand(strsql, sqlConnection)
Dim sqlDataSet As New DataSet
Try
sqlConnection.Open()
Dim myDataAdapter As New SqlDataAdapter
myDataAdapter.SelectCommand = sqlCommand
myDataAdapter.Fill(sqlDataSet)
Catch e As Exception
Console.Write(e.ToString())
Finally
sqlConnection.Close()
End Try
Return sqlDataSet
End Function I was wondering would it be better to save an instance from connection object to memory and use that same connection for all querys?
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Nov 25, 2005
Hello,
Im using Visual Studio 2005 to code ASP.NET
How to query my MS SQL SERVER 2000 to retrieve data from my DataBase?
Ive tried some tutorials, but i kept giving me errorsCan you put a simple source code to retrieve something like "select userID, Name, Age from Users"
Thank you,
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Apr 14, 2008
I am developing a commercial solution for scheduling problems, using different databases. Several of our clients don't have a database server installed in their systems networks, so we thought we would simply use SQL Server Express as a no-cost solution. However, I have come across a MAJOR difficulty:
When I try to log on using SQL Server Authentication (for example, name: "sa" pass: "sa") instead of Windows Authentication, I am simply unable to view any data that does not come directly from a table! No data from queries(!), no data from stored procedures(!!), no data from functions(!!!), only from tables!!!!
And it's not like the queries don't return a dataset, because they do, for a user logged on using Windows Authentication!
And this is not 'simply' a problem of remotely connecting to SQL Server Express, this is also true locally!
There is nothing wrong with my own system, this problem occurs on at least four different windows platforms, vista included. And it is not related to our program, I am having the same difficulty with the Management Studio Express.
I have tried to use several different users, each with different permissions and roles, to no avail.
This is truly a frustrating problem.
It can be solved in one of two ways:
1. Get a non-windows-authenticated user to see the data (get more than 0 rows in the dataset).
2. Manage to log on remotely using Windows authentication.
I am unable to do either one of those, and not for lack of trying. I have been at this for the past week without results.
PLEASE, PLEASE, PLEASE, Can anyone HELP?!?!?!?
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Feb 15, 2008
Hello,
I need to retrieve data from a SQL-server table using a stored procedure. I want to retrieve the values from the table and add them to labels on a form. What is the easiest way to do this? Is dataset the solution?
I appreciate any help!
string sCN = ConfigurationManager.ConnectionStrings["ConnectionString"].ConnectionString;
SqlConnection sqlConnection2 = new SqlConnection(sCN);
SqlCommand cmd = new SqlCommand();
cmd.CommandType = System.Data.CommandType.Text;
cmd.Parameters.AddWithValue("@userID", userID);
Int32 rowsAffected;
cmd.CommandText = "get_user"; //Stored procedure to get user data. Takes UserID as parameter
cmd.CommandType = CommandType.StoredProcedure;
cmd.Connection = sqlConnection2;
sqlConnection2.Open();
rowsAffected = cmd.ExecuteNonQuery();
sqlConnection2.Close();
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May 2, 2006
The project I'm currently working on involves combining data from one SQL Server 2000 databases and XML returned from a web service into a 3rd SQL Server 2000 database.
This process must be scheduled to happen once a day. If it weren't for the Web Service, I'd say that this is a no-brainer and I'd use DTS. However, I'm not sure if I can even access a Web Service with DTS. Has anyone done this or have any tips?
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Jun 16, 2001
I'm writing VB 6.0 codes to retrieve data from SQL Server 7.0. if the sql code is embedded in VB, everything works fine. But when I tried to use stored procedure, one error called "invalid object name 'author'" occurs. author is a table in my database and obviously is in the database. what's wrong?
appreciate for any suggestion!
...mike
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Jun 14, 2007
Hi,
In SSRS 2005, I have an assembly(dll) which is included in a report in order to retrieve data ( OdbcConnection) from database as special condition while the runtime of report. This assembly works FINE in the preview of VS development tools. But it is NOT working when deploying to server, it ONLY returns default value instead of database's value.
Anyone knows how to solve it ? Many Many thanks
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May 12, 2015
I know how to use Linked server query to retrieve data from two different sql on premise instances.I would like to try the same on sql server instances hosted on azure.When I connect to sql instance, I don't see ServerOBjects->Linked server. I just see Database and security.Is this possible on sql azure, if so how can we achieve it
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Oct 5, 2007
Hi,
I am getting an error
'Server: Msg 7416, Level 16, State 2, Line 1
Access to the remote server is denied because no login-mapping exists'
when i run the below code,
SELECT a.* from
OPENROWSET('SQLOLEDB',
'Data Source=SA3KNX;
Integrated Security=SSPI;
Initial Catalog=[Mis Mart];
Persist Security Info=False;
Initial Catalog=Mis Mart;',
'select * from [Mis Mart].dbo.Dim_Cus') as a
Can you please help resolve this. The server SA3KNX uses windows authentication and I run this code in another serer 'SEBDTD3' which uses SQL server authentication. How can i retrieve data from a server that uses windows authentication.
Regards,
Sharan.
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Jul 26, 2007
Hi everyone,
we have some reference tables in in a specific database. that other applications need to have access to them. Is it possible to create a view in the application's database to retrive data from ref database while users just have access to the application Database not the view's underlying tables?
Thanks
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Apr 5, 2007
is it possible to make a custom query to fetch and update data from sql server 2005 in SharePoint designer
i make a new data source library and use a custom query to get data but don€™t know how to configure update custom command
can any buddy help me out
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Sep 17, 2007
Hi guys,
When I thought everything is okay with this script, I got a new problem...
I have a VBA's script from Excel 2003 that builds sql script and retrieves data from SQL SERVER 2000.
in order to make the sql running, I need to use a multi - batch processing, to pass and execute every command line once a time.
Up to here, I am using a test case with Account number = '123456' and getting the desire results.
The code below is running okay with the test case, but when changing the account number (mark as yellow in the code) to include all the accounts (or just one other account), I am getting the following ERROR:
run - time error '-2147217871 (80040e31)' - [Microsoft] [ODBC SQL Server Driver] time out expired.
Now, if I take the same code, with the condition that generates the ERROR, and try it into SQL Server, I get the results without errors.
Thanks in advance,
Aldo.
Below the code:
Code Snippet
Function QuerySalesAging()
'--------------------------------------------------------------
'MUST !!! References: Microsoft ActiveX Data Object 2.1 Library
'--------------------------------------------------------------
Dim ConnString As New ADODB.Connection
Dim RecordSet As New ADODB.RecordSet
'Setting Connection String
Driver = "{SQL Server}"
ServerName = "SERVER"
DB_Name = CompanyName
ConnString = "Driver=" & Driver & ";" & "Server=" & ServerName & ";" _
& "Database=" & DB_Name & ";" & "Uid=" & SQLLoginName & ";" & "Pwd=" & SQLPassword & ";"
'Report Criterias
Criteria05 = " AND " & "Accounts.ACCOUNTKEY Between " & AccountKeyAsRange
' -- ==> With AccountKeyAsRange = '123456' AND '123456' it works okay.
' -- ==> With any other value, in example AccountKeyAsRange = '123456' AND '9999999999' it get's ERROR.
CmdLine01 = " USE " & CompanyName
' Check and drop temporary table
TemporaryTableName = "CTE" ' The table is a regular one
CmdLine02 = " if object_id('" & TemporaryTableName & "') is not null exec('DROP TABLE " & TemporaryTableName & "') "
CmdLine03 = " SELECT ..."
CmdLine03 = CmdLine03 & " INTO " & TemporaryTableName
CmdLine03 = CmdLine03 & " FROM ..."
CmdLine03 = CmdLine03 & " WHERE " & "(" & Replace(Criteria05, "AND", "") & ")"
CmdLine03 = CmdLine03 & " ORDER BY ..."
CmdLine04 = CmdLine04 & " ALTER TABLE " & TemporaryTableName ...
CmdLine05 = CmdLine05 & " UPDATE " & TemporaryTableName ...
CmdLine06 = CmdLine06 & " SELECT ..."
CmdLine06 = CmdLine06 & " FROM ..."
ConnString.Open
ConnString.Execute CmdLine01
ConnString.Execute CmdLine02
RecordSet.Open CmdLine01, ConnString
RecordSet.Open CmdLine02, ConnString
RecordSet.Open CmdLine03, ConnString
RecordSet.Open CmdLine04, ConnString
RecordSet.Open CmdLine05, ConnString
RecordSet.Open CmdLine06, ConnString
ConnString.Execute CmdLine01
ConnString.Execute CmdLine02 ' The debbuger stops here:" if object_id('CTE') is not null exec('DROP TABLE CTE') "
ConnString.Execute CmdLine03
ConnString.Execute CmdLine04
ConnString.Execute CmdLine05
ConnString.Execute CmdLine06
ConnString.Execute CmdLine02
'Retrieve Field titles
For ColNr = 1 To RecordSet.Fields.Count
ActiveSheet.Cells(1, ColNr).Value = RecordSet.Fields(ColNr - 1).Name
Next
ActiveSheet.Cells(2, 1).CopyFromRecordset RecordSet
'Cleanup & Close ADO objects
ConnString.Execute "USE master"
ConnString.Close
Set RecordSet = Nothing
Set ConnString = Nothing
End Function
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Apr 11, 2007
I'm trying to figure this out
I have a store procedure that return the userId if a user exists in my table, return 0 otherwise
------------------------------------------------------------------------
Create Procedure spUpdatePasswordByUserId
@userName varchar(20),
@password varchar(20)
AS
Begin
Declare @userId int
Select @userId = (Select userId from userInfo Where userName = @userName and password = @password)
if (@userId > 0)
return @userId
else
return 0
------------------------------------------------------------------
I create a function called UpdatePasswordByUserId in my dataset with the above stored procedure that returns a scalar value. When I preview the data from the table adapter in my dataset, it spits out the right value.
But when I call this UpdatepasswordByUserId from an asp.net page, it returns null/blank/0
passport.UserInfoTableAdapters oUserInfo = new UserInfoTableAdapters();
Response.Write("userId: " + oUserInfo.UpdatePasswordByUserId(txtUserName.text, txtPassword.text) );
Do you guys have any idea why?
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May 8, 2008
Good day., please help me,in a formview control, i set it in Insert Mode, so it should display info from table 1 but when i click on the insert button, it will insert it in table 2.btw, table 1 and table 2 are in the same database?? how about if they are not in the same database?how?please help me,Thanks.,SALAMAT PO.,
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Oct 24, 2007
Hey All,
I am developing a data acquistion system which monitors the amount of energy that a user consumes in different parts of a house and displays the information in real time on their computer screen. I am collecting the data through tranducers attached to the circuit breakers in the breaker box and sending the data to analog-to-digital converter channels in a MCU. I am retrieving the data from the serial port and storing it to a text file. Each line of data in the text file represents three fields which are separated by commas. I will be reading data from multiple data collection boxes so the first field is the unit number, the second fied represents the analog-to-digital converter channel number from each unit, and the third field is the data that is collected from the ATD channel. I am trying to use SSE to retrieve the data from the text file, and parse each line of data into individual columns in a databse. Then I want to be able to extract the data associated with a particular ATD channel number from the databse and display it in the appropriate text field on a windows form.
I've got the MCU programmed. I have no problem collecting the data from the serial port, and I can do the visual basic programming okay. I have absolutely no clue how to read the data into the database, continuosly read new values into the databse, and then access the stored data to update the text fields on the form. Please help if you can, I've been working on this specific problem for a couple of weeks and I'm not making any progress. Thanks.
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Jul 17, 2007
Can someone please tell me how to retrieve/query the list of fields from an entity of a report data model that has been published on the reporting server programmatically ?
I am trying to upload a report data model to the reporting server and planning to use that model as the data source and consume it through our existing web application?
Thank you ,
Rashid A. Khan
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Oct 24, 2007
Hey All,
I am developing a data acquistion system which monitors the amount of energy that a user consumes in different parts of a house and displays the information in real time on their computer screen. I am collecting the data through tranducers attached to the circuit breakers in the breaker box and sending the data to analog-to-digital converter channels in a MCU. I am retrieving the data from the serial port and storing it to a text file. Each line of data in the text file represents three fields which are separated by commas. I will be reading data from multiple data collection boxes so the first field is the unit number, the second fied represents the analog-to-digital converter channel number from each unit, and the third field is the data that is collected from the ATD channel. I am trying to use SSE to retrieve the data from the text file, and parse each line of data into individual columns in a databse. Then I want to be able to extract the data associated with a particular ATD channel number from the databse and display it in the appropriate text field on a windows form.
I've got the MCU programmed. I have no problem collecting the data from the serial port, and I can do the visual basic programming okay. I have absolutely no clue how to read the data into the database, continuosly read new values into the databse, and then access the stored data to update the text fields on the form. Please help if you can, I've been working on this specific problem for a couple of weeks and I'm not making any progress. Thanks.
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Jan 18, 2008
I need to retrieve points column from my database for the specific user that is signed on and sum all of them. How can I do it using the Gridview and also code in vb for a label? Thanks.
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Nov 19, 2005
Here is my sql procedure:
ALTER PROCEDURE dbo.SoftWareShow /* ( @parameter1 int = 5, @parameter2 datatype OUTPUT ) */ @SoftID uniqueidentifierAS SELECT [SoftID], [SoftName], [SoftJoinDate], [SoftSize], [SoftMode], [SoftRoof], [SoftHome], [SoftDemo], [SoftFirstClassID], [SoftSecondClassID], [SoftDesc], [SoftReadCount], [SoftDownCount],ltrim(rtrim([SoftUrlOne])) SoftUrlOne, ltrim(rtrim([SoftUrlTwo])) SoftUrlTwo, ltrim(rtrim([SoftUrlThree])) SoftUrlThree, ltrim(rtrim([SoftUrlFour])) SoftUrlFour FROM [SoftWare] WHERE ([SoftID] = @SoftID) RETURNwhere I retrieve data using sqldatasource, an error appear. how can do ?
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Mar 18, 2008
Hello,
Before I ask a question, I am visually impaired and cannot read printed words only on a screen. I am 51 years old and have been coding professionally since I was 23 (yes that long). I have four apps on the market and run a small consultancy company in the UK and my SQL knowledge is scant. I have read two books on the subject and thought I had an idea on how SQL works.
I used to belong to another forum but they gave me a hard time so please go easy on me.
I developed an ADO app ages ago and remembered some of it ...
I have four tables (the following is a simplified version of the real thing)
MainTable (Contact data like name address etc. 23 fields)
Towns (Two fields TownUIN and TownName)
Counties (Two fields CountyUIN and CountyName)
Countries (Two fields CountryUIN and CountryName)
My database is normalised to 3NF and contains no duplicate or redundant data.
My problem ...
Sample data
Main:
MainUIN MainName MainTown
1000 Fred Bloggs 1
1001 Fred Smith 2
Towns:
TownUIN TownName
1 Bradford
2 Leeds
SELECT MainName,MainTown FROM Main WHERE MainUIN=1000 returns
'Fred Bloggs' 1 (the TownUIN)
I want ...
'Fred Bloggs' 'Bradford'
It was suggested I use
SELECT MainName,MainTown FROM Main,Towns WHERE MainUIN=1000 AND TownUIN=MainTown
This returned 'Fred Bloggs' 'Bradford' but was slow.
My question is what am I doing wrong?
I am using SQL Server 2005 Express with VB.Net 2005 on Vista Business and XP.
I am sorry my SQL knowledge is weak please dont get angry just tell me the basic thing that I do not know.
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Jul 20, 2005
Hi.I have a IIS server with php3 installed. I have SQL server databaseand data stored in unicode format (nvarchar fields). In header of myphp I have the meta: <meta HTTP-EQUIV="content-type"CONTENT="text/html; charset=UTF-8">.I have the following problem:- I trie to do a query using ODBC (version 3.525.1022.0) and SQLServer odbc driver (version 200.85.1022.00). The query doesn'tretrieve information in utf format and accents and extra charactersaren't showed correctly.- I trie to di the query usin native OLE DB. I use mssql funtions andthe problem is the same.If I install php4 and I use "newCOM("ADODB.Connection",NULL,CP_UTF8);", then it works correctly.Anybody knows if its posible to retrieve data from sql-server in utf-8format using php3?I see in other postings that odbc driver only accept utf-8 in version3.7 or higher? Is it true? If is true, where I can download odbcdriver 3.7?Thank's in advance.Miki.
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Jun 19, 2006
i need to retrieve data from a particular field of the gridview according to the selected row to stored it into session .....what i had done so far as following: Protected Sub GridView1_SelectedIndexChanged(ByVal sender As Object, ByVal e As System.EventArgs) DetailsView1.PageIndex = GridView1.SelectedIndex Session.Add("receiverName", GridView1.??????) End Sub????? is the part i am not sure what to code.... i tried different method by seems to have problem of convertion.
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Jul 18, 2006
Okay, I used the SQLDataSource control to get my data from the database
table. What or how do I retrieve individual data from the
sqldatasource? I want to do some string comparison and manipulation
before I display it to the browser. How can this be accomplish?
Help is appreciated.
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Feb 28, 2007
Hi,
I have a website which is designed to search for employee information. I have the search system working which does exactly what I want to, but as an added feature I want there to be a button which, when someone clicks on it, it takes whatever the previous search was and generates a set of data in XML format which is based on the results. For example:
User searches for all entries with Forename = John; Results are listed in a gridview as per expected.
User then presses button with XML on it, and page pops up with just the XML output on it, i.e. whatever results are on the gridview but in a nested XML format
<records> <record> <Forename>John</Forename> <Surname>Smith</Surname> <Email>j.smith@blah.com</Email> <Ext>1234</Ext> <DeptList>History</DeptList> </record></records>
I have created a stored procedure which will take the parameters from the search boxes and return the above information, but I don't know if this is the best way. Here it is for those interested:
CREATE PROCEDURE ps_record_SELECT_NameSurnameEmailExtDeptasXML
@Forename varchar(50),
@Surname varchar(50),
@Email varchar(50),
@Ext varchar(4),
@DeptList varchar(50)
AS
SELECT Forename, Surname, Email, Ext, DeptList
FROM dbo.record
WHERE Forename LIKE COALESCE(@Forename,Forename) AND
Surname LIKE COALESCE(@Surname,Surname) AND
Email LIKE COALESCE(@Email,Email) AND
Ext LIKE COALESCE(@Ext,Ext) AND
DeptList LIKE COALESCE(@DeptList,DeptList)
FOR XML AUTO, ELEMENTS
If someone could be kind enough to help me out with this, I'd be really grateful.
Many thanks,
Tom
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Jan 23, 2008
Background:I am using Visual Studio 2005 Standard SP1 to create an ASP.NET website that accesses an SQL 2005 database. I am using vb.net as well.I am passing an ID in a query string from one page to the next, where I retrieve it using an SQLDataSource. The data will only be one row; it is returning customer information.Problem:I need to be able to get specific fields from the SQLDataSource and populate some textboxes. Honestly, I'm not really sure where to begin. For the sake of argument, let's say that I am working with this:'My TextboxDim LastName As Textbox'My SQLDataSource (filtered by query string using the customer's ID to only get 1 customer's information at a time)SQLDataQuestion:So, how would I go about retrieving the lastname field from SQLData and inserting it into the textbox LastName?Thanks, J'Tok
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Mar 1, 2008
Dears,
I'm using FormView to insert and retrieve data from SQL Server Database 2000. I'm using stored procedure to insert and display data by using C#.
Every time I insert the data, I can't retrive it. To retrieve all the inserted data, I have to close my website, and then reopen it again.
I close the connection every time after using the stored procedures, but nothing happened.
What do you think the problem is ??
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Jul 23, 2007
I wonder how to get top 1 row per account number. Let's say I have
--snip--
IDENTITY_ID | ACCT_NUMBER
0001 | 1111-2222
1001 | 1111-2222
2002 | 2222-0000
3003 | 2222-0000
4004 | 1111-2222
--snip--
I used the SQL-Query here
Code:
SELECT * FROM BACKUP_LOG ORDER BY IDENTITY_ID DESC
[code]
Since they are in descending order by IDENTITY_ID, so I only want to get 1 distinct account number somehow.. Like this...
[code]
4004 | 1111-2222
3003 | 2222-0000
I couldn't figure it out.
Thanks...
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Jul 21, 2004
I have a table called Questions and I need to retrieve 10 rows of data randomly each time. If I use
SELECT TOP 10 Question FROM Questions
I'll get the same questions each time when I execute the sql statement. Is there a way to get the random data? Thanks.
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Feb 20, 2005
Hello
Is there any way in which i can retirve data using input parameters?
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Sep 9, 2014
Here is the sample xml
<ClinicalDocument xmlns:sdtc="urn:h12-org:abcd" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="urn:h12-org:v3">
<realmCode code="US" />
<typeId extension="POCD_HD000040" root="2.16.840.1.113883.1.3" />
<templateId root="2.16.840.1.113883.10.20.22.1.1" />
<id root="226ff30f-3b1f-11e3-a969-005056bb0109" />
[code]....
how to write a sql query.
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Jan 12, 2006
Hi, everione,
I am having a big problem, trying to create datebase.
I have 3 tables: SUPERAVATAR, MASTERAVATAR, MEGAAVATAR.
- SuperAvatars are heroes in an online role playing gaming. They have an ID, ‘superavatarID’ which contain an UNIQUE NUMBER NOT NULL PRIMARY KEY to identify them.
A wisdom – ‘trickster’,’conjuror’,’magician’, etc..
A current owner… who is the user or player of the game and has that Super Avatar– we associate the link to USERID to know the person.
SuperAvatars can be fathers or mothers of Mega Avatars.
-MegaAvatars are the children of SuperAvatars…. They also have an ID UNIQUE NUMBER NOT NULL PRIMARY KEY to indentify them.
A magic power – it can be a ‘Leader’ or ‘Sheep’…
A ‘parent’ – parent is the number identifying to know to who Super Avatar belongs.
e.g.
SUPERAVAT WISD CURRENTOWNER FATHEROF MOTHEROF
1 Thick 3 1
2 Mentally Ch. 11 3
3 Smart 9 2
4 Genius 16 4
5 Thick 19
MEGAAVATARID MAGICPOWER PARENT
1 MAGICIAN 1
2 WIZARD 3
3 SORCERER 2
4 MAGICIAN 4
-We see that MEGAAVATAR 1 has a magic power as Magician and his father is ‘1’. ‘1’ identifies the SUPERAVATAR.
We see SUPERAVATARID…. who has the number ‘1’? the first in the row… who has wisdom – thick and he belongs to the USER with ID number 3.
-We see MEGAAVATARID… we choose the number 2…. His magic power is as WIZARD… and his father is the number 3.
We see SUPERAVATARID now… we look up the SuperavatarID 3…. We can see he has a wisdom – GENIUS… who belongs to the USERID 16 and he is father of MEGAAVATAR number 2.
The list can carry on and never stop.
I have this Problems:
We create in this example 3 tables: Users, SuperAvatar, MegaAvatar
SQL
CREATE TABLE users(userID NUMBER CONSTRAINT pk_user PRIMARY KEY,email VARCHAR2(50) NOT NULL UNIQUE,password VARCHAR2(15) NOT NULL UNIQUE,subscription CHAR(8) NOT NULL CHECK (subscription IN('ACTIVE' , 'INACTIVE' ) ) );
CREATE TABLE superavatar(superavatarID NUMBER CONSTRAINT pk_superavatar PRIMARY KEY, wisdom VARCHAR2(19) NOT NULL CHECK (wisdom IN ('THICK', 'MENTALLY CHALLENGED', 'AWAKE', 'SMART', 'GENIUS')), currentOwner NUMBER NOT NULL, fatherOf NUMBER,motherOf NUMBER);
CREATE TABLE megaavatar (megaavatarID NUMBER CONSTRAINT pk_megaavatar PRIMARY KEY, magicPower VARCHAR2(12) NOT NULL CHECK (magicPower IN('TRICKSTER','CONJUROR','MAGICIAN','WIZARD','SORCERER')), parent NUMBER);
Now, the 3 tables are created…..
What happen when we try to insert values to this table?
In this case we insert to User Table some examples:
INSERT INTO users VALUES('3','john@hotmail.com','great78','ACTIVE');
INSERT INTO users VALUES('9','chrisandsandra@gmail.com','chrisandra)','ACTIVE');
Now, we insert to SuperAvatar some examples;
INSERT INTO superavatar VALUES('1','THICK','3','1','');
INSERT INTO superavatar VALUES('3','SMART','9','3','');
|
|
‘9’ is the UserID that we already insert to the User table
What’s the problem?
We have to insert manually the data from USERID to CURRENTOWNER as we didn’t match or link CURRENTOWNER from SUPERAVATAR Table to USERID from USER Table with a SQL CODE.
What happen if we have thousands of USERS that they register to this game…? We will never know to how belongs that SUPERAVATAR but if someone do it manually can spend a year.
I am trying to fix this problem …. I add in SUPERAVATAR TABLE ‘CHECK’ in currentOwner..
SQL> CREATE TABLE superavatar
(superavatarID NUMBER CONSTRAINT pk_superavatar PRIMARY KEY, wisdom VARCHAR2(19) NOT NULL CHECK (wisdom IN ('THICK', 'MENTALLY CHALLENGED', 'AWAKE', 'SMART', 'GENIUS')),
currentOwner NUMBER NOT NULL CHECK (currentOwner IN(SELECT userID FROM users)),
fatherOf NUMBER,
motherOf NUMBER);
*
ERROR:
ORA-02251: subquery not allowed here
It doesn’t work.
Please HELP, I have exam tomorrow
thank you
Desy
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Apr 26, 2006
palli writes "how to retrieve data from two tables..."
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