The Best Method Of Storing Multiple Values For A Single User Criteria In The Database ?
Mar 31, 2008
Let's say you had a User table and one of the fields was called Deceased. It's a simple closed-ended question, so a bit value could be used to satisfy the field, if the person is dead or alive. Let's say another field is called EyeColor. A person can have only one eye color and thus one answer should be stored in this value, so this is easy as well.
Now, let's say I want to store all the languages that a specific user can speak. This isn't as easy as the previous examples since it's not a yes or no or a single-value answer. I haven't had much experience with working with databases so I've come up with two possible ways with my crude knowledge hehe.
In terms of inputting the multi-answer values, I suppose I could use a multiple-selection listbox, cascading dropdowns, etc. Now, here are the 2 solutions that came to mind.....
1) Make a field called LanguagesSpoken in the User table. When I process the selections the user makes on the languages he knows, I can then insert into the LanguagesSpoken field a string "English, Spanish, Czech" or IDs corresponding to the languages like "1, 5, 12" (these IDs would be referenced from a separate table I guess). I would use commas so that later on, when I need to display a user's profile and show the user's languages, I can retrieve that long string from the LanguagesSpoken field, and parse the languages with the commas I've used. Using commas would just be a convention I use so I would know how to parse (I could have used "." or "|" or anything else I guess) the data.
2) Forget about the LanguagesSpoken field in the User table altogether, and just make a LanguagesSpoken table. A simple implementation would have 3 fields (primary key, userId, languageId). A row would associate a user with a language. So I would issue a query like "SELECT * FROM LanguagesSpoken WHERE userId=5" (where userId=5 is some user). Using this method would free me from having to store a string with delimited values into the User table and then to parse data when I need them. However, I'm not sure how efficient this method would be if the LanguagesSpoken table grows really large since the userIds would NOT be contiguous, the search might take a long time. I guess I would index the userId field in the LanguagesSpoken table for quicker access?
OR, I may be going about this the wrong way and I'm way out on left field with these 2 solutions. Is there a better way other than those 2 methods?
I haven't work extensively with databases and I'm just familiar with the basics. I'm just trying to find out the best-practice implementation for this type of situation. I'm sure in the real world, situations like this is very common and I wonder how the professionals code this.
Thanks in advance.
View 3 Replies
ADVERTISEMENT
Aug 22, 2007
Hi,
I have multiple columns in a Single Table and i want to search values in different columns. My table structure is
col1 (identity PK)
col2 (varchar(max))
col3 (varchar(max))
I have created a single FULLTEXT on col2 & col3.
suppose i want to search col2='engine' and col3='toyota' i write query as
SELECT
TBL.col2,TBL.col3
FROM
TBL
INNER JOIN
CONTAINSTABLE(TBL,col2,'engine') TBL1
ON
TBL.col1=TBL1.[key]
INNER JOIN
CONTAINSTABLE(TBL,col3,'toyota') TBL2
ON
TBL.col1=TBL2.[key]
Every thing works well if database is small. But now i have 20 million records in my database. Taking an exmaple there are 5million record with col2='engine' and only 1 record with col3='toyota', it take substantial time to find 1 record.
I was thinking this i can address this issue if i merge both columns in a Single column, but i cannot figure out what format i save it in single column that i can use query to extract correct information.
for e.g.;
i was thinking to concatinate both fields like
col4= ABengineBA + ABBToyotaBBA
and in search i use
SELECT
TBL.col4
FROM
TBL
INNER JOIN
CONTAINSTABLE(TBL,col4,' "ABengineBA" AND "ABBToyotaBBA"') TBL1
ON
TBL.col1=TBL1.[key]
Result = 1 row
But it don't work in following scenario
col4= ABengineBA + ABBCorola ToyotaBBA
SELECT
TBL.col4
FROM
TBL
INNER JOIN
CONTAINSTABLE(TBL,col4,' "ABengineBA" AND "ABB*ToyotaBBA"') TBL1
ON
TBL.col1=TBL1.[key]
Result=0 Row
Any idea how i can write second query to get result?
View 1 Replies
View Related
May 10, 2015
Here is some data that will explain what I want to do:
Input Data:
Part ColorCode
A100 123
A100 456
A100 789
B100 456
C100 123
C100 456
Output Data:
Part ColorCode
A100 123;456;789
B100 456
C100 123;456
View 4 Replies
View Related
May 22, 2008
Hi,I have a table which I need to store times in. What is the best way of doing this? The only way I can think of so far is to save the times as a datetime such as '1/1/1900 03:00 PM' then format the date as "hh:mm tt" so that the day isn't displayed. Is this the best method?Thanks,Curt.
View 6 Replies
View Related
Jul 13, 2007
Hi,
I have a table called geofence. It has a primary key geofence_id. Each geofence consists of a set of latitudes and latitudes.
So I defined two columns latitude and longitude and their type is varchar. I want to store all latitude/longitude values as a comma separated values in latitude/longitude columns
So in general how do people implement these types of requirements in relational databases?
--Subba
View 11 Replies
View Related
Apr 11, 2012
How can I store multiple selected values (from a dropdown list) in mysql database?
PHP Code:
<form method="post" action="storedetails.php"> Research Interest:<br/>
<select multiple="yes" size="6" name="interest[]">
<option id="webt" value="webt">Advanced Web Tech1nologies</option>
<option id="mobhum" value="mobhum">Mobile and Humanoid Robots</option>
[code]...
View 5 Replies
View Related
Mar 19, 2007
hi iam totally new to databases , as a project i have to design a database of users...they have to register first like any site..so i used stored procs and made entries to database using insert command...its working for now..now every user will search and add other users in the database..so every user will have a contact list...i have no idea how to implement this...so far i created a table 'UserAccount' with column names as UserName as varchar(50)Password as varchar(50)EmailID as varchar(100)DateOfJoining as datetimeUserID as int ---> this is unique for user..i enabled automatic increment..and this is primary key..so now every user must have a list of other userid's.. as contact list..Any help any ideas will be great since i have no clue how to put multiple values for each row..i didnt even know how to search for this problems solution..iam sorry if this posted somewhere else..THANK YOU !if it helps..iam using sql server express edition..and iam accessing using asp.net/C#
View 1 Replies
View Related
Nov 6, 2005
was hoping someone couild provide some insight into a problem I'm trying to solve.
I have a table called SEARCHCRITERIA. It consists of a USERID column and a CRITERIA column. Users will be able to search for other users based on a set of criteria. There are 5 total criteria a user can choose. They can choose as few as none or all five. I'd like to store the criteria chosen as a single number in the SEARCHCRITERIA table. Then use a function to parse out the criteria. For example:
CRITERIAID CRITERIA CRITERIAVALUE
1 AGE 2
2 SEX 4
3 GRADE 8
4 LOCALE 16
5 REGION 32
A user performs a search based on AGE, SEX, and LOCALE. I would then store the value 22 (the sum of 2, 4, and 16) in the SEARCH table. I would then need a function to pull out the three individual values.
Has anyone done anything like this before?
If so, any help would be appreciated!
Thanks in advance!
View 1 Replies
View Related
May 18, 2007
Taking the Northwind database as an example,I have an order table: 'Orders'a order details table: 'Order Details'and a products table: 'Products'For reasons best ignored, I want to produce a query which has columns:Orders.OrderID, Productswhich has results like:10248, 'Queso Cabrales, Singaporean Hokkien Fried Mee, Mozzarella diGiovanni'10249, 'Tofu, Manjimup Dried Apples'________so for those who don't really know what I'm on about and haven't gotaccess to northwind, I want the second cell to contain the returnedcolumn of a second query (but in text format)could anyone suggest a way this could be done? am I entering the landof cursors?Many thanks,Neil
View 4 Replies
View Related
Dec 28, 2007
I have a SQL query that goes like this
"select * from Product where ProductID in (1,2,3)"
How can i create a stored procedure where a single input parameter can take multiple values?
Can anyone help me with this?
View 4 Replies
View Related
Jun 25, 2004
how does one specify multiple values for a single column in a where clause?
example:
SELECT fname, lname
FROM tblContacts
WHERE (state = 'MI','CA','AZ','TN','NJ')
if my memory serves me there is an IN() value list operator but I can't remember the syntax :confused:
View 2 Replies
View Related
Mar 19, 2008
Hi i am trying to store the checkbox values on my page to the database, but im stuck on what to do. I have the following code already;protected void Btn_Subscribe_Click(object sender, EventArgs e)
{SqlConnection conn = new SqlConnection(ConfigurationManager.ConnectionStrings["streamConnectionString"].ConnectionString);
string strSQL = "INSERT INTO Newsletter(emailAddress) VALUES (@emailAddress)";SqlCommand Command = new SqlCommand(strSQL, conn);
Command.Parameters.Add("@emailAddress", SqlDbType.VarChar);Command.Parameters["@emailAddress"].Value = txtEmail.Text;
conn.Open();
Command.ExecuteNonQuery();
conn.Close();
}
How do i now insert the values from my checkbox, this is how i am setting the checkbox;public void Page_Load(object sender, EventArgs e)
{ArrayList values;if(!IsPostBack)
{
//Build array of data to bind to checkboxlistvalues = new ArrayList();
values.Add("Sport");values.Add("Gardening");values.Add("technology");
AlertList.DataSource = values;
AlertList.DataBind();
}
If i am going about it the wrong way please let me know, thanks
View 15 Replies
View Related
Apr 6, 2014
I joined these two tables and it pulled up the proper amount of records. If you check out the image you will see what the results are for this query.
Now all I need for this part would be to roll these up where I have one row per ProgramID and all the AttributeNames' together in a AttributeNames column for each id.
EXAMPLE: All in one row.
ProgramID | AttributeNames
887 | Studydesign, Control Groups, Primary Outcomes.
I have attached an image of the SQL VIEW that I need to modified so it does this.
THE QUERY:
SELECT TOP (100) PERCENT dbo.tblProgramAttributes.ProgramID, dbo.tblProgramAttributes.AttributeID AS PAattributeID, dbo.tblAttributes.AttributeID,
dbo.tblAttributes.AttributeName
FROM dbo.tblProgramAttributes INNER JOIN
dbo.tblAttributes ON dbo.tblProgramAttributes.AttributeID = dbo.tblAttributes.AttributeID
WHERE (dbo.tblProgramAttributes.AttributeID NOT LIKE '%ProgramType%')
ORDER BY dbo.tblProgramAttributes.ProgramID DESC
View 5 Replies
View Related
Jun 1, 2015
Below is the query for my procedure
ALTER PROC [dbo].[sp_GetInvitationStatusTest]
(
@invited_by NVARCHAR (50)
)
AS
BEGIN
-- SELECT * FROM dbo.Merck_Acronym_Invitations WHERE invited_by=@invited_by
select distinct t1.invited_isid as 'ISID', t1.invited_name as 'NAME',t1.invitation_status as 'STATUS',
[Code] ....
If you look at the where clause i have invited by , i get the desired output if i just provide 1 name in the execution such as exec [dbo].[sp_GetInvitationStatusTest] 'marfilj' But my requirement is to make the procedure work with more than one input variable such as exec [dbo].[sp_GetInvitationStatusTest] 'marfilj','sujith' now i should get the output for 2 people but if i run this i receive the following error Procedure or function sp_GetInvitationStatusTest has too many arguments specified.
how to make my procedure work with more than 1 input variable?
View 4 Replies
View Related
Oct 8, 2007
Suppose that I have a table with following values
Table1
Col1 Col2 Col3
-----------------------------------------------------------
P3456 C935876 T675
P5555 C678909 T8888
And the outcome that I want is:
CombinedValues(ColumnName)
----------------------------------------------
P3456 - C935876 - T675
P5555 - C678909 - T8888
where CombinedValues column contains values of coulmn 1,2 & 3 seperated by '-'
So is there any way to achieve this?
View 1 Replies
View Related
May 29, 2015
Link : [URL] .....
This provides a good example for my situation. In this example, you will see a Movie dimension with four attributes; Genre, Language, Movie, and Theme. I have a similar setup except mine is Top Level Hierarchy>Categories>Values which are all under the one hierarchy.
My Question: I have the dimension setup as a multi-value parameter in one of my reports. When I filter on a value in Genre and in Language, it provides all values from that genre and all values from that language. I really only want the values that include both.
Genre - Western: Movie1, Movie2, Movie3
Language - English: Movie2, Movie4, Movie5
If I filter on Western and English, I get Movie1-5 when all I really want is Movie2 only. Is there any way to have this do an Intersect within the same dimension or do I have to build each one out into its own dimension?
View 10 Replies
View Related
Jan 2, 2008
I have a field called "Owners", and it's a child to an "Activities" table.
An Activity can have on or more owners, and what I'd like to do is some how comma separate the values that come back if there are more than one owners.
I've tried a subreport, but because the row is colored and if another field, title, expands to a second row (b/c of the length) and the subreport has just one name, then the sub-report has some different color underneath due to it being smaller in height.
I'm kinda stuck on how to do this.
Thanks!
View 3 Replies
View Related
Feb 27, 2008
I am using SharePoint Services 3.0 (SP1) with default configuration options, which installs the Microsoft##SSEE instance of SQL to my local C: drive.
While attempting to relocate the files to another drive, I set one of the databases (as recommended) to Single User by using the SQL Server Management Express tool.
I cannot now reset that database to Multi User, even by executing the query
exec sp_dboption 'database_name', 'single user', ''FALSE'
again by using the Management Express Tool.
Can someone please help, in plain english???? Thanks
View 5 Replies
View Related
Aug 18, 2015
how we can replace the multiple values in a single select statement? I have to build the output based on values stored in a table. Please see below the sample input and expected output.
DECLARE @V1 NVARCHAR(100)
SELECT @V1 = 'FirstName: @FN, LastName: @LN, Add1: @A1, Add2: @A2 '
DECLARE @T1 TABLE
(FN VARCHAR(100), LN VARCHAR(100), A1 VARCHAR(100), A2 VARCHAR(100))
[code]....
View 7 Replies
View Related
Oct 25, 2006
Hi, it is few days I posted here my question, but received no answer. Maybe the problem is just my problem, maybe I put my question some strange way. OK, I try to put it again, more simply. I have few textboxes, their values I need to transport to database. I set SqlDataSource, parameters... and used SqlDataSource.Insert() method. I got NULL values in the database's record. So I tried find problem by using Microsoft's sample code from address http://msdn2.microsoft.com/en-us/library/system.web.ui.webcontrols.sqldatasource.insert.aspx. After some changes I tried that code and everything went well, data were put into database. Next step was to separate code beside and structure of page to two separate files followed by new test. Good again, data were delivered to database. Next step: to use MasterPage, very simple, just with one ContentPlaceHolder. After this step the program stoped to deliver data to database and delivers only NULLs to new record. It is exactly the same problem which I have found in my application. The functionless code is here:http://forums.asp.net/thread/1437716.aspx I cannot find any answer this problem on forums worldwide. I cannot believe it is only my problem. I compared html code of two generated pages - with maserPage and without. There are differentions in code in ids' of input fields generated by NET.Framework:Without masterpage:<input name="NazevBox" type="text" id="NazevBox" /><span id="RequiredFieldValidator1" style='color:Red;visibility:hidden;'>Please enter a company name.</span><p><input name="CodeBox" type="text" id="CodeBox" /><span id="RequiredFieldValidator2" style='color:Red;visibility:hidden;'>Please enter a phone number.</span><p><input type="submit" name="Button1" value="Insert New Shipper" onclick="javascript:WebForm_DoPostBackWithOptions(new WebForm_PostBackOptions("Button1", "", true, "", "", false, false))" id="Button1" /> With masterpage:<input name="ctl00$Obsah$NazevBox" type="text" id="ctl00_Obsah_NazevBox" /><span id="ctl00_Obsah_RequiredFieldValidator1" style='color:Red;visibility:hidden;'>Please enter a company name.</span><p><input name="ctl00$Obsah$CodeBox" type="text" id="ctl00_Obsah_CodeBox" /><span id="ctl00_Obsah_RequiredFieldValidator2" style='color:Red;visibility:hidden;'>Please enter a phone number.</span><p><input type="submit" name="ctl00$Obsah$Button1" value="Insert New Shipper" onclick="javascript:WebForm_DoPostBackWithOptions(new WebForm_PostBackOptions("ctl00$Obsah$Button1", "", true, "", "", false, false))" id="ctl00_Obsah_Button1" />In second case ids' of input fields have different names, but I hope it is inner business of NET.Framework.There must be something I haven't noticed, maybe NET's bug, maybe my own. Thanks for any suggestion.
View 2 Replies
View Related
Jun 17, 2002
I need a way of being able to store any rows that are deleted from any of 15 tables.
My current thinking is to have one 'Deleted_Records' table with lots of varchar fields (enough to cater for the largest of the 15 tables) and just adding some SQL to the delete triggers of the 15 tables to write a deleted record(s) into it.
I am not anticipating having to read from this table much. Only in case of emergencies i.e. a user makes a bad mistake and deletes accidentally.
Am using SQL7.
Obviously with cascading deletes quite a few records could be deleted in one delete as it were.
I there a better way of handling this scenario ?
many thanks
Paul
View 1 Replies
View Related
May 9, 2012
I'm taking a database(read-only) backup from one server and restoring it on other server. As soon as restore is done it is bringing database into single-user read-only mode.
why it is bringing the database into single user mode ?
View 1 Replies
View Related
Feb 3, 2007
i am working for a Library Project. in that project i want to search Book by putting book content. in book content there could be single quatation
e.g William's. when ever i put single quatation my string type is terminated and my query is not executed successfully.
select Book_ID,Title,Auther from book_details where Contents like '%xyz%'
here xyz is my object name.
if i put William's in xyz it does not work.
plz tell me how to solve this problem.
Jasim...
New Delhi, INDIA
View 4 Replies
View Related
Apr 19, 2004
Hi All,
Sql Server 7
I have database called ecatalog
i have a scheduled job which shrinks the database every day once at 12 am
today the job got failed
In the view Job history its showing the below contents
-------------------------------------------------------
Database 'ecatalog' is already open and can only have one user at a time. [SQLSTATE 42000] (Error
924) DBCC execution completed. If DBCC printed error messages, contact your system
administrator. [SQLSTATE 01000] (Message 2528). The step failed.
And in Application Log of event viewer its showing the below contents
------------------------------------------------------------------------------
The description for Event ID ( 208 ) in Source ( SQLServerAgent$ABCSQL ) cannot be found. The
local computer may not have the necessary registry information or message DLL files to display messages from a remote computer. The following information is part of the event: Shrink Database
- ecatalog, 0xA0C4F8157A744244A61A4ECABE8C6056, Failed, 4/19/2004 12:00:03 AM, The job failed.
The Job was invoked by Schedule 27 (Shrink Database - ecatalog). The last step to run was step 1 (Shrink Database - ecatalog)..
I ran the job manually it worked fine
but now when i go and see the database ecatalog in my Enterprise Manager
it is showing ecatalog(Single User)
What is the meaning of this, will this make any problem to my database
Please help me in this.
Waiting for Reply
Adil
View 4 Replies
View Related
Apr 21, 2008
I have a database that got set into single user mode. Unsure the reason or who might opened it. I am trying to reset it, but I am having problems. I am trying the following from http://www.kodyaz.com/articles/alter-single-user-multi-user-mode.aspx to kill the connections. So I can then switch it back to multiple users.
DECLARE @DatabaseName nvarchar(50)DECLARE @SPId intSET @DatabaseName = N'Works'DECLARE my_cursor CURSOR FAST_FORWARD FOR SELECT SPId FROM MASTER..SysProcesses WHERE DBId = DB_ID(@DatabaseName) AND SPId <> @@SPIdOPEN my_cursor FETCH NEXT FROM my_cursor INTO @SPIdWHILE @@FETCH_STATUS = 0BEGINKILL @SPIdFETCH NEXT FROM my_cursor INTO @SPIdENDCLOSE my_cursor DEALLOCATE my_cursor
Which gives me the following error message when ran.
Msg 170, Level 15, State 1, Line 13
Line 13: Incorrect syntax near '@SPId'.
View 1 Replies
View Related
Mar 19, 2001
Our company has several SQL Server 7 databases. One of them has now on two occassions, set itself to 'Single User' mode. I am completely baffled as to what can be causing it.
There's no jobs set up to do it.
There's no stored procedures programmed to do it.
The SQL Server Log shows that a DBCC CHECKDB ran at 18:00:37.73 and that users attempted to and couldn't log in from 18:01:01.95 onwards.
There is a maintenance plan set to run every two hours that does a backup, integrity checks, so it fired the CHECKDB.
Any ideas please?
Thanks.
View 2 Replies
View Related
Jan 5, 2001
while recovering it prompts a message 'the system administrator must have exclusive use of database to run the restore operation'.
now,how to do it?
how to make database to use exclusively when it is connected to an web based aplication.
thanks.
View 1 Replies
View Related
Nov 18, 2002
How do you put the master database in single user mode if you want to restore it. the options in the permissions are greyed out? Thanks
View 2 Replies
View Related
Feb 7, 2001
Hi!
I have a problem with databases that are left in single user mode after transaction log backup.
I have a database maintenance plan job that backs up the transaction log and checks data and index linkage every hour.
Sometimes the job fails and when I look in the report file it says that it has tred to put the database in single user mode and failed because the database is in use and then in the next step it says that it cannot perform the operation because there already is a user in the database.
Why is the database put in single user mode?
What can I do to avoid finding my databases in single user mode?
Below is a part of the report file:
[Microsoft SQL-DMO (ODBC SQLState: 42000)] Error 15089: [Microsoft][ODBC SQL Server Driver][SQL Server]Cannot change the 'single user' option of a database while another user is in the database.
[1] Database BV Produktion: Check Data and Index Linkage...
** Execution Time: 0 hrs, 0 mins, 1 secs **
[2] Database BV Projektering: Check Data and Index Linkage...
[Microsoft SQL-DMO (ODBC SQLState: 42000)] Error 924: [Microsoft][ODBC SQL Server Driver][SQL Server]Database 'BV Projektering' is already open and can only have one user at a time.
[Microsoft][ODBC SQL Server Driver][SQL Server]Only the owner of object 'dms_user' can run DBCC CHECKTABLE on it.
[Microsoft][ODBC SQL Server Driver][SQL Server]Database 'BV Projektering' is already open and can only have one user at a time.
[Microsoft][ODBC SQL Server Driver][SQL Server]DBCC execution completed. If DBCC printed error messages, contact your system administrator.
The following errors were found:
[Microsoft][ODBC SQL Server Driver][SQL Server]Database 'BV Projektering' is already open and can only have one user at a time.
[Microsoft][ODBC SQL Server Driver][SQL Server]Only the owner of object 'dms_user' can run DBCC CHECKTABLE on it.
[Microsoft][ODBC SQL Server Driver][SQL Server]Database 'BV Projektering' is already open and can only have one user at a time.
[Microsoft][ODBC SQL Server Driver][SQL Server]DBCC execution completed. If DBCC printed error messages, contact your system administrator.
** Execution Time: 0 hrs, 0 mins, 9 secs **
View 1 Replies
View Related
Oct 30, 2007
Hello ,
Is it possible to do the backup of SQL server instance in a Single user mode ?
What is the recommended practice ?
Thanks in advance,
atv
View 5 Replies
View Related
Oct 22, 2015
I put the database in emergency mode, then I executed Checkdb, it shows no errors. The database status is still EMERGENCY and when I try to bring it online, it says he database is in single-user mode, and a user is currently connected to it. There is one processes which is accessing the database, i try to kill it, but it is not going. I am not able to set database to multi user.
View 7 Replies
View Related
May 6, 2015
I know what single user mode does but my doubt is at what situations we will go for this? What operations to perform ? we will keep the database in single user mode.
View 7 Replies
View Related
Apr 3, 2002
We have a database that is somehow switching to single-user mode every few days. We suspect that the client application (Access 97) written by a non-developer may be doing something funny.
Has anybody encountered such a problem?
How is this possible?
Thanks in advance for any help or pointers.
View 3 Replies
View Related
