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  • Transaction on Entity FrameWork Refactoring and best performance how can i?

    - by programmerist
    i try to use transaction in Entity FrameWork. i have 3 tables Personel, Prim, Finans. in Prim table you look SatisTutari (int) if i add data in SatisTutari.Text instead of int value adding float value. Trannsaction must be run! Everything is ok but how can i refactoring or give best performance or best writing Transaction coding! i have 3 table so i have 3 entities: CREATE TABLE Personel (PersonelID integer PRIMARY KEY identity not null, Ad varchar(30), Soyad varchar(30), Meslek varchar(100), DogumTarihi datetime, DogumYeri nvarchar(100), PirimToplami float); Go create TABLE Prim (PrimID integer PRIMARY KEY identity not null, PersonelID integer Foreign KEY references Personel(PersonelID), SatisTutari int, Prim float, SatisTarihi Datetime); Go CREATE TABLE Finans (ID integer PRIMARY KEY identity not null, Tutar float); Personel, Prim,Finans my tables. if you look Prim table you can see Prim value float value if i write a textbox not float value my transaction must run. protected void btnSave_Click(object sender, EventArgs e) { using (TestEntities testCtx = new TestEntities()) { using (TransactionScope scope = new TransactionScope()) { Personel personel = new Personel(); Prim prim = new Prim(); Finans finans = new Finans(); //-----------------------------------------------------------------------Step 1 personel.Ad = txtName.Text; personel.Soyad = txtSurName.Text; personel.Meslek = txtMeslek.Text; personel.DogumTarihi = DateTime.Parse(txtSatisTarihi.Text); personel.DogumYeri = txtDogumYeri.Text; personel.PirimToplami = float.Parse(txtPrimToplami.Text); testCtx.AddToPersonel(personel); testCtx.SaveChanges(); //----------------------------------------------------------------------- step 2 prim.PersonelID = personel.PersonelID; prim.SatisTutari = int.Parse(txtSatisTutari.Text); prim.SatisTarihi = DateTime.Parse(txtSatisTarihi.Text); prim.Prim1 = double.Parse(txtPrim.Text); finans.Tutar = prim.SatisTutari * prim.Prim1; testCtx.AddToPrim(prim); testCtx.SaveChanges(); //----------------------------------------------------------------------- step 3 lblTutar.Text = finans.Tutar.Value.ToString(); testCtx.AddToFinans(finans); testCtx.SaveChanges(); scope.Complete(); } } How can i rearrange codes. i need best practice refactoring and best solution for reading easly and performance!!!

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  • how to find index of a row in sql server?

    - by NoviceToDotNet
    How can i fetch column names from a tale on index basis, like i want to make a tables whose column name should be the name of last column fields of a result set of a query, but those result sets last columns value may be different at different execution time, so i want to know how can i fetch those index value of that last column to make a temp table with column name of those last columns value of a result set. Is there any way/function in sql server to dynamically form that?

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  • PostGreSQL load increasing over time, why?

    - by TravisO
    It's a CentOS server (I don't know the specs) and just before anybody states the obvious, keep in mind these mitigating factors: the server does a nightly VACUUM job all the tables are indexed it's pretty much read only (meaning the DBs are not increasing in size) the number of queries being ran has been the same every month Here's a graph of the server load:

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  • SQL View Creation

    - by george9170
    I have two tables Table FOO FooUniqueID| Year| Name| Worth| --------------------------- 1 2008 Bob 23.00 2 2009 Bob 40200 Table Bar BarUniqueID | Name | Value ----------------------- 1aBc Year 2009 I would like to create a view. That will select everything from FOO where the Year is equal select value from Bar where name = year without using a sub query. thank you

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  • Storing JSON in an SQL Server database?

    - by JKirchartz
    I'm developing a form generator, and wondering if it would be bad mojo to store JSON in an SQL Server database? I want to keep my database & tables simple, so I was going to have `pKey, formTitle, formJSON` on a table, and then store {["firstName":{"required":"true","type":"text"},"lastName":{"required":"true","type":"text"}} in formJSON. would this slow down the DB server too much to set live? Any input is appreciated.

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  • parametrized query jqgrid

    - by user300657
    Hey, I have this mysql tables I want to display with jqgrid. The problem appears when I want to display a parametrized query. For example lets say I want to display all students older than 21. I have this variable named age which I want to pass to server.php file where I can construct the XML or JSON. On server I see some variables like $examp = $_REQUEST["q"]; but I dont know where to put $age to be accesed in server.php Thanks

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  • CSS body Background Centered to be aligned with content

    - by salsanz
    I want to put a Background image centered in the body (backgroundPosition). And then I want all the content(text, tables....) I will add to the page to be aligned with the background, for example, If I zoom the Page, the proportions Background-Content should be respected. I tried almost everything and I don't know if Its possible, I know if I use position top-left for background position and then content in float:left proportions will be respected, but If I want background centered?

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  • MySQL UPDATE problem

    - by comma
    I know the following MySQL code is not correct can some help me fix this code to use both tables I'm trying to grab the id from learned_skills and skill_id from users_skills for AND skill_id = id Here is the MySQL code. SELECT learned_skills.*, users_skills.* UPDATE learned_skills SET skill = '$skill', experience = '$experience', years = '$years' WHERE user_id = '$user_id' AND skill_id = id

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  • Wordpress database migration

    - by Sean Cull
    Hi Everyone! I've looked around the Wordpress forums about this and didn't find anything so I thought I might try here. If you have a staging/dev Wordpress setup used for testing new pluging and such, how do you go about migrating the data in the staging database back to the production database? Is there a "Wordpress best practices" way to do this, or am I limited to having to manually migrate tables from one database to the other?

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  • When doing a Schema Export with hbm2ddl, is there a way to specify that you DO NOT want Nullable For

    - by Jon Erickson
    The DDL that is being created is putting all of my many to many associations into 1 table, but I actually want each many to many association in its' own table (for other reasons) Right now hbm2ddl is creating this table (only Table1Key OR Table2Key OR Table3Key should be filled out for any given record, causing this table to have nullable foreign keys): +-----------+ | xRef | +-----------+ | Table1Key | | Table2Key | | Table3Key | | RiskKey | +-----------+ I want hbm2ddl to create the following 3 tables so that there are no nullable foreign keys. +-----------+ +-----------+ +-----------+ | xRef1 | | xRef2 | | xRef3 | +-----------+ +-----------+ +-----------+ | Table1Key | | Table2Key | | Table3Key | | RiskKey | | RiskKey | | RiskKey | +-----------+ +-----------+ +-----------+

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  • ASP.NET MVC Membership DB must be merged with site DB?

    - by ile
    I am planning to use ASP.NET MVC2 implemented membership system to manage users. Database that uses application should have tables that are related with these users. Is it possible to use two different databases and make relationships (foreign keys) between them or I will have to merge these two databases into one? Thanks, Ile

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  • Denormalization of large text?

    - by tesmar
    If I have large articles that need to be stored in a database, each associated with many tables would a NoSQL option help? Should I copy the 1000 char articles over multiple "buckets", duplicating them each time they are related to a bucket or should I use a normalized MySQL DB with lots of Memcache?

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  • How to look stored value in CoreData ?

    - by Meko
    Hi.I am new on iphone development and I have problem with CoreData. I hardly made to sore value in CoreData but How can I look those value like in MySql WorkBench you can see the tables ad also values.In CoreData am I have chance like that?

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  • Copying a field to another table in Access

    - by Jacques Tardie
    I'm a bit embarassed asking this here, but here goes: I've got two tables, which you can see here: http://img411.imageshack.us/img411/4562/query.jpg I need to copy the effortid from the one table into the other, making sure that the values still maintain the correction relationships. The primary key for each is a combination of loggerid & datetime. What's the best way to do this? Thanks in advance, and don't make fun :)

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  • Storing JSON in an msSQL database?

    - by JKirchartz
    I'm developing a form generator, and wondering if it would be bad mojo to store JSON in an SQL database? I want to keep my database & tables simple, so I was going to have `pKey, formTitle, formJSON` on a table, and then store {["firstName":{"required":"true","type":"text"},"lastName":{"required":"true","type":"text"}} in formJSON. would this slow down the DB server too much to set live? Any input is appreciated.

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  • UNIQUE CONSTRAINT on a column from foreign table in SQL Server 2008

    - by bodziec
    I have two tables: create table [dbo].[Main] ( [ID] [int] identity(1,1) primary key not null, [Sign] [char](1) not null ) create table [dbo].[Names] ( [ID_Main][int] primary key not null, [Name][nvarchar](128) not null, constraint [FK_Main_Users] foreign key ([ID_Main]) references [dbo].[Main]([ID]), constraint [CK_Name] unique ([Name], [Sign]) ) The problem is with the second constraint CK_Name Is there a way to make a constraint target column from a foreign table?

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  • transforming binary data using ssis and sql server 2008

    - by Rick
    Hello All - I have a task to import/transform and extract zipped binary files that contain both text data as well as embeded binary data. Within the data is data that is relational in nature and needs to be processed into a defined database structure. Currently I have a C# single threaded app that essentially grabs all the files from the directory (currently there is 13K files of varying sizes) and extracts the data on a single thread line by line inserts to the database. As you could imagine this is a very slow process and unacceptable. There are several different parsing routines used depending on the header record in the file. There are potentially upto a million rows per file when all the data is extracted to the row level of detail. Follow on task is to parse those rows into their appropriate tables based on is content. i.e. the textual content has to be parsed further into "buckets" of like data in the database. That about sums up the big picture. Now for the problem task list. How do i iterate through a packet of data using SSIS? In the app the file is decompressed and then is parsed using streams data type and byte arrays and is routed to the required parsing routine based on the header data of each packet. There is bit swapping involved as well. Should i wrap up the app code into a script task(s) and let it do the custom processing? The data is seperated by year and the sql server tables is partitioned by year as well. I need to be able to "catch" bad file data as well and process by hand most likely. Should i simply load the zipped file to sql as a blob and parse the file with T-SQL? Would that be multi threaded if done that way? Not sure how to do the parsing in tsql that is involved here. Which do you think would be faster? Potentially the data that is currently processed via files could come to us via a socket. Can SSIS collect that data in real time? How would i go about setting that up? Processing these new files from the directorys will become a daily task. I can manage the data once i get it to sql server. Getting it there in a timely fashion seems to be the long pole in the tent for me. I would appreciate any comments or suggestions from the group. Rick

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  • MS-ACCESS query to match first few characters in string comparision

    - by neobee
    What query is suitable to compare two tables specied below, however only part of string in location(table1) will matches with the Location(table2). Location(table1) Location(table2) india- north USxcs India-west Indiaasd India- east Indiaavvds India- south Africassdcasv US- north Africavasvdsa us-west UKsacvavsdv uk- east Indiacascsa uk- south UScssca Africa-middle Indiacsasca Africa-south Africaccc Africa-east UKcac only 1st two characters of location(table1) and 1st two characters of location(table2) should match. Please help only any four characters of location(table1)and any two characters of location(table2)should match.

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