database

Can Django flush its database(s) between every unit test?

Django (1.2 beta) will reset the database(s) between every test that runs, meaning each test runs on an empty DB. However, the database(s) are not flushed. One of the effects of flushing the database is the auto_increment counters are reset. Consider a test which pulls data out of the database by primary key: class ChangeLogTest(django...

How to work with CTE. There is some error related to anchor.

I am creating a hierarchy representaion of a column. But an error occurs Details are Msg 240, Level 16, State 1, Line 1 Types don't match between the anchor and the recursive part in column "DISPLAY" of recursive query "CTE". I know there is some typecasting error. But I dont know how to remove error. Please just dont only s...

WPF/C#: Images rotating from a listview?

I just want ask for your comments/suggestions on how to create a customized listview (if that's a good implementation) in WPF that displays images coming from a table from a database (more like a playlist) that rotates similar to a film (moving horizontally - on loop) Any ideas? ...

Copying an entire table with Postgres

Hello, I'm trying to copy the contents of one table into another in Postgres, however it appears some rows aren't being copied correctly: ActiveRecord::StatementInvalid: PGError: ERROR: column "email_date" is of type timestamp without time zone but expression is of type character varying HINT: You will need to rewrite or c...

how to set anything in database then he not allow duplicate rows in a table

how to set anything in database then he not allow duplicate rows in a table means name abc name abc means some row sames as each other then i need to take one copy of it and remove each other ...

How do I get rid of Duplicate Entries With Unique IDs in MS Access 2003?

I'm working on an MS Access Database with tons of duplicate entries. The problem is that there is a table of students, and sometimes instead of just updating a certain student's information, someone would just add the student in again with a different ID. I want to get rid of all the duplicates (which is a pain since there's barely any w...

Import/Export table definistrions using SQlServer Management Studio

Hi, How to import/export table definitions from my dev database to production database(recreate the whole database). I have Sql server 2005, Sql Management studio with power shell. Thanks in advance. ...

what is deadlock in a database?

What is deadlock in sql server and when it arises? What are the issues with deadlock and how to resolve it? ...

How to backup my MySQL's databases on Windows Vista?

Hello. How can I backup my MySQL's databases? I'm using Windows Vista and MySQL 5.1. I have found the folder "C:\Users\All Users\MySQL\MySQL Server 5.1\data" with all my database files and copy them, but how can I restore them if I need? Thank you. ...

Managing My Database in Source Control

As I am working with a new database project (within VS2008), and as I have never developed a database from scratch, I immediately began looking into how to manage a database within source control (in this case, Subversion). I found some information on SO, including this post: Keeping development databases in multiple environments in syn...

Aggregation relationships and instantiating objects from database storage (vb)

I have a small application which allows users to create accounts and then award 'points' to each other. UserAccount is an object, and so is Point, and there is an aggregation relationship between them: each UserAccount has a member variable (PointHistory) which is a collection of Points. The Point object simply contains properties for w...

NoSQL for filesystem storage organization and replication?

We've been discussing design of a data warehouse strategy within our group for meeting testing, reproducibility, and data syncing requirements. One of the suggested ideas is to adapt a NoSQL approach using an existing tool rather than try to re-implement a whole lot of the same on a file system. I don't know if a NoSQL approach is even...

Comparing textbox value to database

HI ! I would like to compare values from a textbox with data from a table. I tried this code but i got the error that the input string was in the wrong format! code: string connectionString = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=save.mdb"; try { database = new OleDbConnection(connectionString); database.Open(); ...

MYSQL Event to update another database table

Hey All, I have just taken over a project for a client and the database schema is in a total mess. I would like to rename a load of fields make it a relationship database. But doing this will be a painstaking process as they have an API running of it also. So the idea would be to create a new database and start re-writing the code to u...

How to access data using VBSCRIPT from a stored procedure which contains values in Temp table ?

Hi , for testing purpose I wrote a VBscript which will fetch values from Sybase by executing a stored procedure which contains values in temp table. When I run the script I get the following errors , "Either BOF or EOF is True, or the current record has been deleted. Requested operation requires a current record." or "Item cannot b...

Restore Oracle XE data from *.DBF

Is it possible to restore oracle database from *.DBF files? If yes, then how? I really find it hard to deal with backup and restore things in Oracle compared to SQL Server. I have a backup of the whole oraclexe folder including these files. ...

Visual Studio 2010 Data Compare Automation

I noticed in premium edition Data menu with Data Compare option which does everything I need. Just wondering whether there is a way to automate what's done in GUI from my application. Ideally I'd like to get collections of different/left/right rows ...

alphanumeric and special character sorting

Hi ppl, I wanted to know the different standards of sorting. To be more specific take the sample set: (Please note there's capitals, small letters, special characters, null values and numbers here) A a 3F Zx - 1Ad NULL How would the Oracle Database sort this by default? How would LINQ sort this by default? How would db2 sort this...

how to write this query using joins?

Hi, i have a table campaign which has details of campaign mails sent. campaign_table: campaign_id campaign_name flag 1 test1 1 2 test2 1 3 test3 0 another table campaign activity which has details of campa...

Fluent NHibernate ExportSchema without connection string

I want to generate a database script without having an actual database connection string declared. To do this for now i use NHibernate ExportSchema bases on a NHibernate configuration generated with Fluent NHibernate this way (during my ISessionFactory creation method): FluentConfiguration configuration = Fluently.Configure(); ...