Can anyone give me an idea like, what percentage of organizations use 'code' to maintain the parent-child relations on their tables than
having FK constraints thru the db model? Because,all the companies that I worked with used 'code' to control the relationships across the tables(not the PK/FKs.!!)
Thanks.
Neil.
I have taken on a contract to improve reporting for an old HR database that was developed using FoxPro (Visual FoxPro, I think) with the data stored in SQL Server 2000. There are no foreign keys in SQL Server 2000 so the relationships are maintained inside FoxPro.Is there a way of extracting the relationships from the FoxPro code and generate foreign keys in SQL Server, so that I can do proper design?
View 7 Replies View RelatedHi,
I'm trying to find the most efficient method of importing XML files into SQL Server using SSIS. The objective is to read these files created in a source directory and potentially there will be a large number of these created every second.
I've experimented with the XML Source data flow task and been able to import using either the OLEDB Destination or SQL Server Destination.Using the associated XSD file
These methods work well when there are no PK or FK relationships, i.e. the target tables are stand alone.
However when I use a schema that has relationships I need to be able to import and be able to return the key then use this key to import into another table to ensure the FK relationship and so on.....
From what I know I will need to create multple Data Flow tasks when reading a single xml file then in turn create a 'look up' on a table to see if this entity exists and on error insert using the OLEDB command and then somehow return the PK generated???
Has anyone tried this? And would be happy to share there experiences?
It seems a lot easier to use an SP and then use an execute SQL task method
Your thoughts would be greatly appreciated
Thanks
John
hello,
i am wondering, for what i use relations between tables? if i make sure that the data inserted into the table matches, for what i need table relationships?
i have a table named Pictures with: PictureID, UserID, UserName, PictureName, Description...
do i have to make relationships between UserID from Pictures and UserId from aspnet_Users?
and the second table PicturesComments witch has: CommentID, PictureID, UserID, UserName...
do i have to makre relationship between PictureID from PictureComments and PictureID from Pictures AND between UserID from Pictures and UserId from aspnet_Users?
sorry for this stupid questions...
thanks
I am creating a small piece of software which handles a pre-advice data file, several scanner inputting weights and a supplier weight report.
The pre-advice contains a list of barcodes and details revolving around that barcode, each barcode will be scanned and a weight will be obtained, this will be place in the DB.
Currently my tables can be summarized like this.
Pre-Advice Table
Barcode
Lots of other info…
Scanners Table
Barcode
Date
Time
Weight
Which device input this information
Suppliers Weight Table
Barcode
Date
Time
Weight
Here is the process(es):
1.Pre-advice table populated.
2.When the barcode is scanned and a weight is obtained, a record will be added to the scanners table and this becomes the ‘active’ weight.If there is already an ‘active’ weight against this barcode the user will be asked if they wish to use the ‘active’ weight already in the system or update the ‘active’ weight to the weight they have entered.
3.Then when the supplier weight report is inputted into its table, should the ‘active’ weight be less than the supplier weight, the supplier weight becomes the ‘active’ weight.
At any given time a user can pull a report based on information in the Pre-Advice table, which will need to include the ‘active’ weight for that barcode’s record.
Additionally, no weights should be deleted, I need a fully traceable log of who, what, where & when. I will need to pull reports on the trials of scans so it really is a must to keep these.
Furthermore, if a scanner was to scan the same barcode after the Suppliers weight had been input and the user chooses to replace the weight then, the scanners weight should become the new ‘active’ weight.
I believe I will need to modify my tables to accommodate my needs, however I am not sure exactly what or how to set up what I need.I understand I will need some type of relationship between all of the tables to be able to pull the report on the Pre-Advice table, but I am lost.
how I will need to set up my tables/relationships in order to achieve my requirements?
There are several databases (currently in Access) that are being moved to SQL Server. Would prefer keeping those databases separate in SQL Server. How do you do something similar to Access's "link" capabilities and relate tables in different physical databases? For example, relate the authors of a document in a document database to persons in a people database where AuthorID in Docs.DocAuthors.AuthorID is related to People.Persons.PersonID
View 4 Replies View RelatedHi, I have two tables. One is called ContentRecord and it is one field, an identity field that is a primary key. I have another table that is has several fields including a field that is a foreign key called contentFK. I have set up a foreign key relationship between the tables. There is a one to many relationship. I would like to know the best way to add a record to both tables. The way I am thinking to do it is to do the insert statement to add the record to the ContentRecord which will return the value of the primary key field. Then do a seperate insert statement to insert the record into the second table where I set the contentFK equal to the returned value from the first statement. Does that make sense? Is there a better way to do this?
Thanks,
Laura
Hi, I'm working on Sql Server 2005 Express and I'm trying to transfer over some of my tables with the primary and foreign keys relations as well as the data in them from one asp.net 2.0 website to another.But I can't seem to find the Import/Export option in Sql Server 2005 Express Edition, does anyone know how I can do this?Thanks in advanced.
View 1 Replies View RelatedI export all tables from serverA databaseAA to serverB (both SQL2k sp3)databaseAA with 'Success', but without any relationships. In SQL6.5 Tools of Transfer will bring all objects include relationship.
I also tried export "All Objects" which fails with unclear message. I just don't want to do a backup and restore....
thanks
David
Can Anybody explain me this how to Do this ?
Is this done by definning the Primary key and foreign key constraints ?
Hello Friends,
I am right now working on a project that has a database with over 100 tables in a database. Because of extreme time constraints the developers didn't build in any relationships or constraints between or in the tables. Now I need to remodel the database such that the database is more structured and normalized. I don't have much knowledge about the database design since it is a 2 year old application and the person who developed the database is now gone. I know remodelling the database would require knowledge of the existing database and business rules.
I was wondering if there are any tools that could suggest or discover relationships between tables. For eg. Lets say there are two tables named 'Customer' and 'Order'. I notice that there is a column named 'id' in Customer and a column named 'customer_id' in Order. So I ask the tool to discover a relationship between id and customer_id and it tells me that there is a one-one or one-many or no relationship by comparing values. I heard ERWin would be able to do that but thats expensive. Please do let me know asap.
Guys,
I have 600 tables in my database, out of which 40 tables are look up value tables. I want generate truncate scripts which truncates all the tables in order of Parent child relationship excluding lookup tables. Is there any way to do this apart from figuring out Parent Child relationship and then writing the truncate statements for each of the table.
For example
EmployeeDetail table references Employee table
DepartmentDetail table references Department table
Department table references Employee table
My truncate script should be
TRUNCATE TABLE DEPARTMENTDETAIL
TRUNCATE TABLE EMPLOYEEDETAIL
TRUNCATE TABLE DEPARTMENT
TRUNCATE TABLE EMPLOYEE
IS there any automated way to figure out parent and child tables and generate truncate script for the same.
Thanks
I've been searching around for some info on how to set this up, but with no luck.I need to have a .sql file that will set up a few tables and these tables will have relationships and contraints.I can do this by hand in enterprise manager, but need to set up some procedures that will do the same thing.For instance, I can create the tables just fine.....CREATE TABLE students ( sId int NOT NULL PRIMARY KEY, studentId varchar(50) NOT NULL, course varchar(50) )
CREATE TABLE courses ( cId int NOT NULL PRIMARY KEY, course varchar(50) NOT NULL, sco varchar(50) )But, I need to set up relationships in there somehow.Once student may have many courses (one to many) and one course may have many sco's (one to many) SCO would be another table.Can someone point me to a good link that would show how to complete these procedures?Thanks all,Zath
trying to get a new database created then running a script to created the tables, relationships, indexes and insert default data. All this I'm making happen during the installation of my Windows application. I'm installing SQL 2012 Express as a prerequisite of my application and then opening a connection to that installed SQL Server using Windows Authentication.
E.g.: Data Source=ComputerNameSQLEXPRESS;Initial Catalog=master;Integrated Security=SSPI; Then I run a query from my code to create the database eg: "CREATE DATABASE [MyDatabaseName]".
From this point I run a script using a Batch file containing "SQLCMD....... Myscriptname.sql". In my script I have my tables being created using "Use [MyDatabaseName] Go CREATE TABLE [dbo].[MyTableName] .....". So question is, should I have [dbo]. as part of my Create Table T-SQL commands? Can I remove "[dbo]."? Who would be the owner of the database? If I can remove the [dbo]., should I also remove dbo. from any query string from within my code?
altimebest1 writes "Please show sql codes to creating a table showing Value and quantity under a heading, the month the data was collected or the value and quantity in the 1st, 2nd, 3rd and 4th quarter values under a heading Year.
My source table is:
comCode char 7
monthCode char 2
year char 4
countryCode char 3
quantity int
value money
insurance money
freight money
i also have a lookup table for:
Commodities Countries
comCode char 7 countryCode char 3
comDescriptions varchar 255 countryName varchar 255
the format of the table i wish to create
Com Commodity Description Jan
Code Country of Destination ValueQuantity
Thank you for helping me and I been a constant visitor to your site and it's wonderful and gives great help to sql enthusiasts."
Hello. You can compile a proc with a non-existant table. proc compiles do fail though on exsiting tables with non-existing columns.
Anyways, question is, how can you scan thru all procedure code to find tables that do not exist in the database? Is there any new DM feature that provides this info? Meaning, if I have a proc and inside it, refer to a table name that does not exist, I want to know the proc will not execute clean. Can the deferred name resolution be turned off somehow?
Thanks, Burce
hi expertsss..
my msdb database is like 2gb big.. to me is really big.. so is there a way to maintain that? and how. ..
also.. my disk level fragment are bad on one of my drive (some datafiles in there and msdb is there too). is there any 3rd party tool i can use to do the defragment and set schedule ? please help thanks~
I used a function to create dataset as below:
Public Function GetSQLDataSet(ByVal SQL As String) As DataSet
......
MyConnection = New SqlConnection(MyConnectionString)
MyCommand = New SqlCommand(SQL, MyConnection)
MyDataSet = New DataSet
MySQLDataAdapter = New SqlDataAdapter(MyCommand)
MySQLDataAdapter.Fill(MyDataSet)
......
End function
It works fine.
How to code a function to return a dataset in which there are two tables and relationship?
Dear list,I am trying to get the names of the tables and the column names from thecode below for a database but it is not working. When I run the querybelow the column titles are delivered but there is no data. I think thismight be a premissions issue. Has anyone run into this before?Thanks in advance.Use Test_db/* Provides Table Name, Column Name, Extened Description */Select a.name as tbl_name, b.name as column_name, d.name as data_type,d.length as length, d.xprec as prec, d.scale as scale, b.usertype,b.scale, c.valuefrom sysobjects as a inner join syscolumns as b on a.id=b.id inner joinsysproperties as c on b.colid=c.smallid and a.id=c.idinner join systypes as d on b.xtype=d.xtype
View 2 Replies View Related
Hi,
I have a requirement to create #Temp table in database and insert values to it.
I use following code:
DbCommand dbCreateTable;
dbCreateTable = provider.CreateCommand();
dbCreateTable.Connection = conn;
dbCreateTable.CommandText ="Create table #MyTemp (Id varchar(10))";
dbCreateTable.ExecuteNonQuery();
string[] insertValues = {"Insert into #Mytemp values ('TestString1')",
"Insert into #Mytemp values ('TestString2')"};
DbCommand dbInsertData = provider.CreateCommand();
dbInsertData.Connection = conn;
foreach (String insertStr in insertValues)
{
dbInsertData.CommandText = insertStr;
dbInsertData.ExecuteNonQuery();
}
Code creates the Temp table but when it comes to insert statement, it throws error saying "Temp table not found".
Reason can be Create and Insert statement gets executed as 2 different sessions.
How to get the above requirement work fine?
Thank you.
HV
Hi All,
Pandon me for asking such question, I am still a beginner to ASP.NET.
I have a project that require me to do single operation that is suppose to update two databases, wonder how do I maintain transaction between these two databases? Please advise, thank you!
My application uses sql for performing operation. something like conncetion.execute(query). so there is only conncetion object no recordset object or something like that .
i want to run multiple instence of my application so i want to maintain integrety of data. and i am looking for solution through sql for locking mechanism. so concurrent data access dont currept data.
I hope you have uderstand my requirement.
Sebastian Garibaldi writes "Hi I'm Sebastian from Argentina, and i have a problem with a SQL data base. I receive error from data base of broken index and consistency errors. I set the fill factor with the information from the books online, i put 70 in tables that have a lot of INSERT/UPDATE/DELETE but it works for two o tree days.
I now that i must make some maintain in the database but which tools i shuld use?
here i paste an error from dbcc checktable:
Server: Msg 8964, Level 16, State 1, Line 1
Table error: Object ID 981108969. The text, ntext, or image node at page (1:949979), slot 52, text ID 57535781339136 is not referenced.
Server: Msg 8964, Level 16, State 1, Line 1
Table error: Object ID 981108969. The text, ntext, or image node at page (1:949979), slot 53, text ID 57535782191104 is not referenced.
DBCC results for 'FCRMVI'.
There are 108460 rows in 17430 pages for object 'FCRMVI'.
CHECKTABLE found 0 allocation errors and 2 consistency errors in table 'FCRMVI' (object ID 981108969).
repair_allow_data_loss is the minimum repair level for the errors found by DBCC CHECKTABLE (ArleiProd.dbo.FCRMVI ).
thanks, and sorry my english."
I am TRYING to write code to combine two tables and then return the maximum value of one table, but SQL Server keeps telling me that the column is not valid.... I have added attached screenshots to show that it IS a valid column, so I cannot figure out what is the retarded issue!!
View 11 Replies View RelatedI'm writing an application using VB 6.0 as the front-end GUI, and theMSDE version of SQL Server as the back-end (it's a program for areally small # of users --- less then 3-4).I'm trying to determine, through the Visual Basic interface, thepermissions of each user that's using the application on his/hermachine.For example, let's say I'm user "Michael" that's sitting down at mymachine using the app. I've written. The security for logging intoSQL Server will be setup using Windows Security (Trusted Connection)as opposed to Windows & SQL Server security. When Michael accesses aparticular form in the VB 6.0 GUI, I want to run some code thatautomatically checks Michael's permission levels on the underlyingtable (actually, a stored procedure supplying the data from the table)that supplies the data to the form he's looking at and then give himsome feedback on the form as to what type of permissions he has whilehe's browsing through the data shown in the form.For example, Michael opens a particular form, code in the backgroundis run to identify that this is Michael accessing the form, the codereturns a value that identifies what type of permissions he has on thedata in the form, and a text box on the form informs Michael (forexample) that he only has read-only permissions to the data he isviewing and cannot edit any of the data.As another example, user Karen sits down at her computer, logs intothe application, opens the same form that Michael just opened, thecode is run in VB to detect the level of permissions she has on thedata being displayed in the form, and the text box on the form informsher that she has editing permissions on the data in the underlyingtable.Etc...If anyone can post an example of the code they use in accomplishingthis task in an application they've written, I'd really appreciate apoint in the right direction or a real-world example that's beenimplemented by one of you. I've written several apps. thus far usingMSDE as the back-end, but the previous apps. I've written were forclients that didn't care about restricting access to theapplication... everyone could pretty much use the application as theydesired and do anything they desired to the data.The current client I'm writing the app. mentioned here for wants tohave security in place to where various users access the applicationwith various levels of permissions to do stuff (or *not* do stuff) tothe data in the application.Thanks very much in advance for any assistance / code provided!Sincerely,Brad McCollumJoin Bytes!
View 1 Replies View RelatedHello,
I have an application written in Visual Basic 2008, using a SQL Express 2008 database. This application runs in several locations on stand-alone PC's and there is no network connecting them.
I have to maintain a SQL database in a central location an would like to be able to distribute updated tables from that central location by using an USB stick and replace the tables of the same name in the different locations with the updated ones on my USB stick.
This I would like to do using code within my VB2008 application.
Can someone please help me on the way to achieve this. Is it possible to give some concrete code examples, as I am a newbie as a SQL Server user.
Many thanks and greetings,
Michel
I have a user who needs to check whether 2 jobs have run on a SQL Server 2000 instance, and be able to view logs.
Is there a way of doing this, and not allowing them access to anything else?
I have to synchronize 2 databases hourly but am having difficulty maintaining foreign key relations. These tables use auto-increment columns as primary keys, with child records in other tables related with foreign keys. I can't change the way the local software uses primary or foreign keys as it is hardcoded in the local app. (microsoft retail management system)..(however the web-remote app is easily customized). I am using CDB synchronizer to sync the two databases because the remote one is mysql.
Example tables layout:
Items table has auto-increment primary key 'id'
TransactionEntry table has its own auto-increment primary key 'id' and a foreign key 'item_id'
Example of how remote and local database foreign key relations are incorrect after sync using CDB synchronizer:
8:00am -first installation of database-'item' tables auto-increment 'id' columns match with id last record value of '6'
locally the following products are added:
11001 short sleeve t---gets added with primary key in 'item' table 'id' of '7'
11002 long sleeve t----gets added with primary key in 'item' table 'id' '8'
remotely the following products are added:
21001 hipster jeans- --gets added with primary key in 'item' table 'id' of '7'
31001 overalls---gets added with primary key in 'item' table 'id' '8'
remotely someone orders 21001..so TransactionEntry table records sale of "item_id" of '7', but after synch with our local server,
product with "item_id" of '7' is "short sleeve t".
9:00 -synch takes place...item_id foreign key isn't accurate because of independent auto-increment values..
whenever a product is ordered, the TransactionEntry table will record the product's ID column thats available in it's own local copy... after synch, the 'item_id' field will not match the 'Item' table id field and the data about the transaction's product is lost.
I have read of solutions involving staging/temporary tables to cascade update foreign keys before synching into main database, but hopefully there is a more elegant solution for this. If this is only way, will it be reliable? foreign key mix-match seems like could cause havoc.
I would like to maintain version control of the all the sql objects (sp, view , tables ) and maintain source code versions control. Any way to use TFS to maintain versions of sql objects. Also the folder structure when using TFS.
View 1 Replies View RelatedHey everyone, I'm new to .NET and I've recently inheirited a rather large and busy asp.net website. I was asked to add a testimonials section on each page that will randomly pull a testimonial out of the db. This is fine, however, I'm getting random errors about the DB connection either being closed or connecting. Here is the code for the testimonials class: 1 public SqlDataReader GetTestimonials(ref SqlDataReader reader, int iCatID, string sLanguageType)2 {3 SqlCommand cmd = new SqlCommand("sp_DVX_Testimonials_Fetch", Connection);4 cmd.CommandType = CommandType.StoredProcedure;5
6 cmd.Parameters.Add(new SqlParameter("@Cat_ID", iCatID));7 cmd.Parameters.Add(new SqlParameter("@LanguageType", sLanguageType));8
9 reader = cmd.ExecuteReader();10
11 return reader;12 } I know this isn't the best way to do this (especially for each page[this site averages about 1000 hits a day]), so I was wondering was--is there a way to maintain a single DB connection that's set up in the Application_Start that will maintain the connection so I don't have to worry about this error. If not, does anyone and any ideas as to what would help? Thanks in advance!
Hi guys,
We have a scenario where there are about 50 tables in our database and we want to build an intranet web application for users to with the office to access those tables.
Users ability to access tables falls into diferent category:
Some users can NOT view some tables at all
Some users can ONLY view some tables but not insert/update any field
Some users can view and also insert/update some tables (in the same time they might not have view(select) permision on some other tables)
Now, what is the right way to implement this.
I say we have to have a Role, RolePermission, User, UserPermission inside our database to implement this (something which would look like the Roles and Users inside MSSQL) and we only have one user for our Database (MachineName/ASPUSER) to access the database and all the tables within
My colleague says NO, instead of creating all these tables and implement this, we add every user of our application as a Database user inside MSSQL in the Databse Users.
All the web application I have seen so far, DNN, CommunityServer, ... the have tables to implement all these and they don't add users inside the MSSQL.
Now which way is the way to go with, and what problem might we fall into if we use SQL users, is this possible at all. How can I convince him that we have to make and use our own tables to manage this.
Thanks for any help,Mehdi
Say I have a result set with two fields numbers and letters.
1 A3 A1 B2 B
The result set is ordered by the letters column. How can I select the distinct numbers from the result set but maintain the current order? When I tryselect distinct Number from MyResultSet
it will reorder the new result set by the Number field and return
123
However, I'd like maintain the Letter order and return
132
Hello
I would appreciate If any one could help me in this matter.
problem is : how to maintain perpetual inventory transaction table order in batch mode updation ?.
I have designed a table to hold all inventory transactions. The table order is perfectly maintained in online system of updation. But if I go with batch updation then the order of the transaction is collapsing. For example consider the following table design. (note I used auto number to maintain the order).
version used : SQL Server 2000 with service pack updates.
LINEID TRANS_TYPE TRANS_ID TRAN_DATE STOCKNO QUANTITY RATE
1 Receipts 2 01/01/2000 xxxxx1 2 2.0
2. Issue 1 01/01/2000 yyyyy1 1
3 Receipts 3 02/01/2000 xxxxx2 4 3.0
4 Issue 2 02/01/2000 yyyyy2 1
the above is well in online mode. But in batch mode if i update issue 2 before receipts 3 then i am getting order like below
1 Receipts 2 01/01/2000 xxxxx1 2 2.0
2. Issue 1 01/01/2000 yyyyy1 1
3 Issue 2 02/01/2000 yyyyy2 1
4 Receipts 3 02/01/2000 xxxxx2 4 3.0
ofcourse if the order collapse means costing can not be accurate. so please any one could help me to solve this problem. because many software packages are not posting in sequence if we choose in batch mode.