Access Tips: Working Out a Person's Age. When storing personal data, it is normal practice to record a person's date of birth rather than their age.
This is for the simple reason that the date of birth never changes, but the age will be different next year. If you need to show someone's age you should ask Access to calculate it for you. Calculating someone's age from their birthday is not quite as simple as it might at first seem! Of course, you take the current year and subtract it from the year in which they were born. This will give you an accurate age in years - providing they have had their birthday this year.
C# - implementing a progress bar to show work being done. How To Read and Write BLOB Data by Using ADO.NET with Visual C# .NET. Writing Managed Stored Procedures using C# Introduction With the integration of the CLR with SQL Server 2005, we can create database objects using modern object-oriented languages like VB.NET and C#.
In fact, for pure non-data access code like computation, string parsing logic etc., we should use .NET for writing the SQL server objects. It is also advisable to use managed code for writing the store procedure. Also for accessing webservices, exploring OOP's programming for better reusability and read external files, it is good to used managed store procedure. This article is trying to explain the simple and required steps that are require starting the creation of Manage Stored Procedure using C# and using them. The Project. Walkthrough: Creating a Stored Procedure in Managed Code. C# - NHibernate and DTOs. Scott Hanselman - Extending NerdDinner: Exploring Different Database Options. Home - NHibernate Forge. Inserting and Retrieving images from SQL Server Database using C# Advertisements I think storing images in a database can save a developer loads of time and can ease his life while dealing with visuals, either creating a local application or a web application.
Think of storing your images of a certain web application in a database instead in a directory exits somewhere in a cloud which one-a bit headache and second-completely transparent with respects to its location. So, here we are, I am going to create here a local application through which we can insert and retrieve an image using c# from a sql server 2005 database. First I created a database named TestImage in which I created a table called test_table holding two columns id_image(datatype: nvarchar[50]) and pic(datatype: image). Second create a new project in visual studio, select windows application, language c# and name it as TestImage. So, now right click on your form and select view code. SQL Bulk Copy with C#.Net. Introduction Programmers usually need to transfer production data for testing or analyzing.
The simplest way to copy lots of data from any resources to SQL Server is BulkCopying. .NET Framework 2.0 contains a class in ADO.NET "System.Data.SqlClient" namespace: SqlBulkCopy. The bulk copy operation usually has two separated phases. In the first phase you get the source data. The source could be various data platforms such as Access, Excel, SQL.. Convert Microsoft Access (JET SQL) to SQL Server (T-SQL) Cheatsheet.
Lots of questions come up in the SQL Team forums about conversions between Access and T-SQL and some of the differences between the two SQL dialects.
Here's a few handy things to help you out with converting your projects. Check in now and then as this short list will eventually grow as more things come up. Converting NULL values Access: NZ(Value, ValueToReturnIfNull) T-SQL: COALESCE(Value, ValueToReturnIfNull) -- or -- ISNULL(Value, ValueToReturnIfNull) Checking for NULLs. Comparing .NET XML Serializers: Part One. Download source - 43.74 KB Introduction I was working on a large .NET application (.NET 3.5 SP1), and we began to argue about which XML serializer is better for saving application state: user preferences, open windows, queries, and the like.
The power of serializers and quality of resulting XML is best investigated on actual samples. I have built a small engine that runs each serializer on a set of samples, captures resulting XML or exception, and saves them in an XML output file. XML Serializable Generic Dictionary - Paul Welter's Weblog. XML Serializable Generic Dictionary For some reason, the generic Dictionary in .net 2.0 is not XML serializable.
The following code snippet is a xml serializable generic dictionary. The dictionary is serialzable by implementing the IXmlSerializable interface. using System; using System.Collections.Generic; Databases supported by NHibernate - JBoss Community. NHibernate is primarily tested on Microsoft SQL Server 2000.
It is also known to work on these databases: Microsoft SQL Server 2005/2000 SQL Server 2005 and 2000 are the primary databases used by the developers of NHibernate. Configuration example: Updating Data to a Database. C# Station: ADO.NET Tutorial Lesson 06 - Adding Parameters to Commands. By Joe Mayo, 9/5/04 This lesson shows you how to use parameters in your commands.2 Here are the objectives of this lesson:
C# Station: ADO.NET Tutorial Lesson 07 - Using Stored Procedures. By Joe Mayo, 9/12/04.
Building a DAL using Strongly Typed TableAdapters and DataTables in VS 2005 and ASP.NET 2.0 - ScottGu's Blog. June 22nd 2006 Update: We've now published a whole series of new data tutorials based on this origional post.
You can read all about it here. One of my goals over the next few weeks is to publish a number of quick tutorial postings that walkthrough implementing common data binding design patterns using ASP.NET 2.0 (master details, filtering, sorting, paging, 2-way data-binding, editing, insertion, deletion, hierarchical data browsing, hierarchical drill-down, optimistic concurrency, etc, etc). To help keep these samples shorter, and to help link them together, I’m going to use a common DAL (data access layer) implementation across the samples that is based on SQL Server’s Northwind sample database.