5 items found in the SQL Category

Finding Yesterday in SQL and C#

Monday, July 12, 2010 9:27 PM

C# SQL

Here's something that comes up often in forums - How To Find Yesterday in SQL or C#. Piece of cake, if you know how, but tricky if you don't. And especially tricky to get the right value if you are not clear on the requirement.

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4 Comments for this item

Preventing SQL Injection in ASP.NET

Wednesday, August 19, 2009 7:28 AM

SQL ADO.NET ASP.NET 3.5

I, and many other contributors to the forums at www.asp.net find examples of code posted on a daily basis that are vulnerable to SQL Injection attacks. We continue to exhort beginners (and some more experienced programmers) to code against them. This article examines just how serious a flaw vulnerable coding can be, and what you should do about it.

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26 Comments for this item

Sql JOINS and the Sql Server Management Studio Query Designer

Wednesday, November 28, 2007 1:19 PM

SQL SQL Server Express ADO.NET

There are a whole bunch of articles, blog entries and tutorials that seek to explain how SQL JOINS work. Some of them are excellent, and others are just confusing. The reason I am adding my go at trying to clarify JOINS to the mix is to highlight how proper use of the tools available to you can seriously reduce the chances of getting the JOIN syntax or type wrong. Since JOINS are all about how to relate data from one table to another, I thought it appropriate to illustrate the subject using Parents and Children (who may, or may not be related to eachother). So let's meet the families.

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7 Comments for this item

Getting the identity of the most recently added record

Tuesday, June 5, 2007 10:13 PM

SQL SQL Server Express MS Access ADO.NET

The built-in functions @@Identity and Scope_Identity() are designed to retrieve the most recently added record's autoincrement identity value from Access and Sql Server respectively. Here are some usage examples.

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Insert Single Value With Stored Procedure ASP.NET C#

Tuesday, April 3, 2007 2:16 PM

ASP.NET 2.0 SQL ADO.NET

Code for calling stored procedure in the Code-Behind to insert a single value from a text box.

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3 Comments for this item

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