Searching From And To Location
Nov 7, 2007
Hi all,
I hope someone can give me some tips on how to implement a nice solution.
I need a table to store distances between 2 locations.
First thought was to make a table like this
- id
- fromid
- toid
- distance
However distances can be used in both directions.
So a search to get distance between xx and yy would be: select distance where (fromid = xx and toid = yy) or (fromid=yy and toid=xx)
A unique index (fromid, toid) would make sure no double entries are made, but this still doesn't deny anyone from changing from and to and entering a distance in the other direction (from yy to xx)
Any suggestions for a cleaner db design ?
Ideally one where searches don't need the or, or where the db design can restrict people from entering a distance in the other direction ?
I could force something in business logic to sort locations alphabetically but that also seems like a dirty trick..
Aeneas.
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Apr 24, 2008
I am trying to find all the email addresses with a " ._" I use '%._%' but it returns all records. What is the correct syntax? Also, is there a way to search for a field where the underscore is followed by a single alpha letter and then another underscore? like bla_A_bla or bla_Z_bla.thanksMilton
SELECT DISTINCT fname, lname, inet
FROM ocadbo.notes
where inet like '%._%'
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May 8, 2004
Dear ASP.NET
How can I find records that contain a STRING from some (more than one) other fields ?
for example, I have:
Name_First = "aaa"
Name_Middle = "bbb"
Name_Last = "ccc"
Key_Words = "aaa,bbb,ccc"
(includes all values - comma separated)
How can I do the SELECT so that when I search for "bbb" on Key_Words I will get my record ?
Should I use "LIKE %aaa%" or something like this ?
(should I keep the comma separators ?)
Thanks in advance, Yovav.
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Feb 13, 2006
Let say a user wants to search for the name Joe Soap
I have two column's in my table, firstname and lastname
So if I do:
Code:
SELECT firstname, lastname FROM table WHERE firstname LIKE '%Joe Soap%' OR lastname LIKE '%Joe Soap%'
it returns nothing! So do I have to split the string Joe Soap or something ?
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Nov 28, 2004
my app use a registration table
StudReg
(
stName varchar(30),
stDOB smalldatetime,
stGuardianName varchar(30),
stRegDt smalldatetime,
stRegNo bigint,
courseId smallint
)
the application registers the student details to a course.
each student gets a new registration no during registration.
the app should identify repeaters to a particular course by checking another
table RegHistory, which stores the details of student registrations for the previous 5 years.
RegHistory
(
stName varchar(30),
stDOB smalldatetime,
stGuardianName varchar(30),
stPrevRegDt smalldatetime,
stPrevRegNo bigint,
courseId smallint
)
the application must search the RegHistory table and list out those students who are the repeaters.
the sample entries in the two tables are as follows
StudReg
stName stDOB stGuardianName stRegDt stRegNo courseid
-------------------------------------------------------------------------
abc 01/01/1979 def 20/11/2004 12345 1
def 01/01/1976 xyz 20/11/2004 12346 1
... ..... ... ...... .... ...
mno 24/18/1976 pqr 20/11/2004 12400 1
RegHistory
stName stDOB stGuardianName stPrevRegDt stPrevRegNo courseId
abc 01/01/1979 def 20/11/2001 2345 1
ghi 01/01/1976 xyz 20/11/2001 2346 1
... ..... ... ...... .... ...
dfg 24/18/1976 pqr 20/11/2001 2400 1
to determine whether a student is a repeater or not, we have to search for an exact match in RegHistory table (where the student name, guardian name and date of birth in both tables match with the corresponding entries in Registration table).
here is my question,
if there are 100,000 students registering in each academic year, we will have
500,000 records in RegHistory Table and 100,000 records in studReg table
if i start searching for a repeater, i guess i will have to loop through all records in studReg, for an exact match in RegHistory, which wil be a time consuming process.
is there any other options to search for repeaters ?
pl discuss
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Mar 16, 2004
hi all,
I need help in selecting records from a table based on the given search criteria.
spec:
select * from table where col1='x' and col2='y'... and col6='q'
i may give any combination of column values.
I mean I can't provide 6 values in 'where' condition all the time i submit query.
help me with a stored proc which has 6 input parameters for the 6 columns.
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Dec 11, 2006
Maybe a dumb question.. but is there a way to search all tables in a database for a particular word or phrase?
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Feb 18, 2008
I am searching for an add-in to ssms which lets me choose which server to deploy my code.
For example, I have a complete statement with CREATE PROCEDURE and all code in my query window.
Now I want to run/deploy this code to many servers at once.
Instead of having to reconnect to all server (5), I want an add-in which have checkboxes for me to select.
Anyone heard of this?
E 12°55'05.25"
N 56°04'39.16"
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Jul 23, 2005
Hi,I have come to point in my db design where I'm trying to figure whichis the best approach in making it generic (does this really matter?!?)Senario - I have a table called JOBS and this table contains fieldsuch as JobTitle, JobDescription, Salary etcI want to add to this table other attributes which are specific to acertain Job Industries.Solution - Add a join table for each type of industry containingattributes (db is now not generic) OR add a new table with a IndustryType field and a XML field containing the industry specificattributes.If I go the XML way will this just make it complex and slow to query?If not, what is the best way to query an XML field?Thanks,Jack
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Jul 23, 2005
I am having a problem with seaching my tables. On my asp.net page ihave 3 text boxes. One for an ID and NAME and ADDRESS. I want to beable to search a table by using all or any combination of the 3 tosearch. But i cant get it right. i am using c# and sql server.any help ideas would be a great helpthanks in advanceructions
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May 26, 2008
How do we make a search in dbase where in the data you are searching has a " ' " for example Int'l Airport or other wildcards
Regards
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Oct 19, 2006
It is very intersting to find out that when we are backuping a database we are not able to specify a shared folder .Why?Is it because security concern or it is idenfied as bug or is there any work around.Only thing we are able to specify is that it points to the local drive of the particular server. Help would be more appericated.
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Mar 27, 2007
Does anyone know where a good article pertaining to where you should locate your Data and Log files (in SQL Server 2005)?
I read an article several years ago stating that Log files should be on a seperate RAID 1 and Data on a seperate RAID 5.
Anyway, any help is appreciated.
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Apr 10, 2007
I am getting this error when i run my aspx project..Server Error in '/' Application.
Incorrect syntax near '.'.
Description: An
unhandled exception occurred during the execution of the current web
request. Please review the stack trace for more information about the
error and where it originated in the code.
Exception Details: System.Data.SqlClient.SqlException: Incorrect syntax near '.'.
Source Error:
An unhandled exception was generated during the execution of the
current web request. Information regarding the origin and location of
the exception can be identified using the exception stack trace below.
Stack Trace:
[SqlException (0x80131904): Incorrect syntax near '.'.] System.Data.SqlClient.SqlConnection.OnError(SqlException exception, Boolean breakConnection) +857354 System.Data.SqlClient.Sql is there anyway that i can get the line number ,file or any other information regarding location off error.. i got abt 3 aspx files..so i dont really know where to look for the error..
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Jun 16, 2008
Hi Guys,
I'm actually a beginner in SQL Server and I got use to a database called "Cache" where the Data itself is stored separately from the tables (Table definition), and I'm wondering if its the same in SQL Server where the Data is stored in a deferent location then the Table definition, and if so, where it could be stored?
Thanks.
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Feb 20, 2001
Can someone tell me what the default installation location
is for SQL 2000? Is it different for the default instance
compared to a named instance? What about the tools? It
seems to me I read something about the tools defaulting
to the program filesmicrosoft SQL Server directory.
I guess I'm more concerned about each instance and the
location of those files. I don't necessarily like the
idea of each instance installing to the program files
directory, if that's the default.
Can anyone help me out?
Thanks
Toni
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Jul 14, 2000
Hello,
Can anyone tell me how to change the location of 'tempdb.mdf'
It locates in C drive but I want to move to D drive because D has much more space than C in my computer.
Thanks,
Mike
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Feb 17, 2000
Hi,
currently, the default location for new db is c:msqldbdata and I want to change it to another location.
anyone know how?
Thanks.
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Jul 24, 2007
We have three separate disks for our sql server.
Disk c : system
Disk d : data
Disk e : logs
A couple of months ago our IT manager moved the tempdb database from the c drive to the d and e drives because it had grown to 9Gb and the c drive had run out of space. When I discovered this, I shrank tempdb back to it's specified size of 1.9Gb and now I want to move it back to the c drive because I believe we will see better performance with the system + tempdb together than with the data/logs + tempdb together. Am I correct?
A couple of notes. Server is used exclusively by SQL server. We have three large databases (40Gb, 20Gb, 15Gb), three databases around 4Gb databases and around 15 smaller databases. Most of them are accessed exclusively from a web application.
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Jun 3, 2008
Easy question, I hope We are setting up an active active sql cluster. The management have done everything the wrong way around and purchased the hardware already.
We are planning on having 2 databases 1 in each instance. We will place the transaction log files for each database on their own cluster "physical disk" resource. We only have 4 disks availalbe for the transaction log files. To make things a little more complicated I have been given no information on the expected transaction use other than they should be no larger than 50GB
Here are my options
1. 2 Mirrored raid arrays one for each sql instance
2. 1 Raid 10 array with 2 logical drives (so the transaction logs are sharing the same disk spindles)
What would you do? seperate the disk spindles or share them and go for fast disk performace.
Thanks in advanced
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Jul 30, 2005
Hi again,I am able to schedule a backup and default it to the server. However, isthere an option or a way to locate the backup somewhere else on the network?regards,gilbert
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Jul 1, 2006
Hi!
When I'm looking at the properties of my dbases I see there are at c:program filesms sql server etc..
But I want to put ALL my current and future databases to E:.
Can somebody tell me how to achieve that?
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Oct 2, 2007
I have an installation of SQL2005 SP1 configured as follows:
Dell Poweredge 2650 with 4 GB RAM
c:, d: and e: are all on the local host and f: and g: drives are on a SAN. I have the system db's on the e: local disk and the Team Foundation Server databases and logfiles on the SAN disks. SQL2005 is installed to the E: disk.
We are migrating VSS to TFS and our times are very long for a simple 1 GB migration.
I need to know if I need the application databases and logfiles and system databases on the same disk because I see a lot of disk thrash and the tempdb is getting large, 3 GB today.
SQL architecture - should the system db's be on the same disk as the application db's?
Thanks
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Jul 17, 2006
Hi,
When the battery dies the SQL Ce installation vanishes. Especially the following dlls which were copied into the Windows directory during installation are getting vanished when the battery dies.
sqlCese30.dll
sqlCepqp30.dll
sqlcemme30.dll
sqlceer30EN.dll
I guess this is because of the fact that RAM content vanishes when the power goes off.
Is there a way i could install the SQL CE in the Storage Card?
I can install the Compact Framework in the Storage Card but not the SQL CE.
I have installed the CF, My application in the Storage Card. Just because of this SQL CE does not allow me to choose the installation directory, i have to install the SQL CE everytime the battery dies out.
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Apr 10, 2007
Can anyone tell me where the data for a snapshot is kept at?
R
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Mar 12, 2007
Can SQL Server be installed onto a file server...if so, how?
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May 10, 2007
How do you know what exactly to use as the database name?
In school the prof says he is not exactly a database programmer but gave us some code he had from an old one. That code worked fine if you want to actually connect to the database at school but I want to send everything right through sqlexpress on my own machine so I can work on the programs at home.
The following is the code to connect to the school database, how would I change it to connect through sqlexpress instead?
Code Snippet
using System;
using System.Data;
using System.Data.SqlClient;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
namespace Database
{
/// <summary>
/// Summary description for Class1.
/// </summary>
public class Class1
{
SqlConnection connection;
public Class1()
{
}//closes constructor
public void connect(string computerID)
{
connection = new SqlConnection("Data Source = " + computerID +
"; Initial Catalog = test; Integrated Security = SSPI");
try
{
if(connection.State == ConnectionState.Closed)
connection.Open();
}//closes try
catch(Exception ex)
{
MessageBox.Show("connection no" + ex.Message.ToString());
}//closes catch
}//closes connection method
public void Write(string Name, string ID, string Grade, string Average)
{
string add = "INSERT INTO Example VALUES('" + Name + "', '" +
ID + "', '" + Grade + "', '" + Average + "');";
try
{
connect("DNV-WS-RM336INS");
SqlCommand command = new SqlCommand(add, connection);
command.ExecuteNonQuery();
}//closes try
catch(Exception ex)
{
MessageBox.Show(ex.Message.ToString());
}//closes catch
this.connection.Close();
}//closes write mehtod
public string Read()
{
string Info = "";
SqlCommand command = new SqlCommand("select * from Example;", connection);
SqlDataReader reader = command.ExecuteReader();
try
{
while(reader.Read())
Info += reader.GetString(1).ToString() + " " +
reader.GetString(2).ToString() + " " +
reader.GetString(3).ToString() + " " +
reader.GetString(4).ToString() + "";
}//closes try
catch(Exception ex)
{
MessageBox.Show("read Method " + ex);
//Console.WriteLine("Error retrieving data.");
}//closes catch
reader.Close();
return Info;
}//closes read method
}//closes class
}//closes namespace
What I tried was replacing the dialog for the school database with just the text sqlexpress but that certainly didn't work.
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Sep 21, 2007
Hello,
I'm wondering where exactly is the default location of the rdl file stored on the server?http://<server>/reports/
Thanks,
-Lawrence
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Mar 2, 2006
Hello,
In process of installing TFS, I unintentionally installed SQL server on C drive as I could'n see any option of selecting the drives.
Is there any way in which I can move the database folder to another drive without reformatting and going through the same procedure.
TIA
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Jul 13, 2006
Got a couple of questions
1. If you are managing databases in SQL Express with SQL Server Managment Express CTP, why doesnt VBE place the database there where you can see them? I can create a database inside SQL Server Managment Express CTP and view its tables, relations,etc. from within SQL Server Managment Express CTP, but when I make a database with VBE it does not show up in SQL Server Managment Express CTP. Also the database that was made inside SQL Server Managment Express CTP cannot be seen from VBE. Why? what did I do wrong, or is it supposed to be like that? Is that where you would want to place a database for multiple pc to share?
2.Login Question ;-----shouldnt post this here but,
Is there a reason why you dont want to use SQL Authetication over Windows? The are a few pcs here that doesnt have user accounts installed(I know that not a good practice, but when you have multiple people needing different data quickly- switching users is not preferred, its a time thing for what I would call dummy terminals).
How do you take an instance of SQL and change to SQL Authetication over windows?
Curious?
David
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Oct 29, 2007
hi frends
I am working on project in which we have to show advertisements as per users country. how i can know about the location of user that just type the url and press enter.
any body have any solution or tips most welcome
Thanks
Sarbjit
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Sep 21, 2007
Hi all,
Need Some Advice€¦
Current Setup of the Databases:
All €œsystem databases€? + €œreportserver & reportservertempdb€? are on €œ D drive€? --- Raid 1 ( Mirrored) and their location is : D:Program FilesMicrosoft SQL ServerMSSQL.1MSSQLData
Free Space left on "D" Drive is # 18 Gb.
€œUser Databases€? are on ---- €œE Drive€? --- Raid 5 and their location is E:Datadb
Now , we got new storage device with much larger capacity. So, we are planning to transfer our databases on this new drive which is €œRAID 5€?.
My question is:
(1) Should I transfer all the databases ( (i.e.) €œsystem databases€?+ €œreportserver & ReportServerTempdb€? + €œUser databases€?) on that new drive ( RAID 5).
(OR)
(2) Keep the €œsystem databases€? + €œReportServer& ReportServerTempdb€? on the old
drive (i.e.) RAID 1 and Transfer only the €œUSER Databases€? on that new drive (i.e.) RAID 5.
(OR)
(3) Transter only Tempdb to the new drive (i.e.) on Raid 5, so as to avoid any I/O congestion. and keep all other system & ReportServer & ReportServerTempdb on the old "D"drive.
(OR)
(4) Is there anything I should be careful when doing this & Is there any better way of doing this€¦.
Thanks for all your help€¦.
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Aug 31, 2006
i'm making a web page for a clinic.it needs to be able to search for patients by first name, surname, date of birth and patient number.i'm using visual web developer and i have my database, my data source and GridView grid.i want 4 text boxes for my first name, surname etc. when u click enter on any of them i want to retrieve all their data and display it in the gridview.at the moment i have one text box on the web page and through the "Configure data source" option on the grid view i can retrieve the specified data but for only this one item, e.g. SELECT * FROM [Patients] WHERE ([DOB] = @DOB). if i add another text box to my web page, and don't do anything to it, the query wont run. if i add and "AND" statement to the query, e.g. SELECT * FROM [Patients] WHERE (([DOB] = @DOB) AND ([FirstName] = @FirstName)), again it won'r run or return and data. any ideas on what i can do or where i'm going wrong. thanks
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