Aggregate function is T-SQL are sued to perform some calculations on multiple records or values in SQL table. Generally we use these function with Group By clause in Select statements. The aggregate functions are performed on a set of value and returns a single value. Also most of these function returns numeric values. In this [...]
Transact-SQL – Using Try-Catch in Stored Procedure and Error Functions
Filed in ASP.NET, SQLTry-Catch is used to handling exception in C#. Today we will see that how this is also useful to handle errors in SQL also. The Try-Catch consists of two blocks Try block and Catch block. We just write our statements inside the Try block and when the error generate in the Try block the control [...]
The final step for most of databases to be normalized is converting the 2NF to 3NF. After converting the databse into the 3rd normalization form or 3NF most of database are normalized. While converting the 2NF to 3NF we remeber a rule that remove any non-key attributes to a new table that are more dependent [...]
The Next process of normalization is convert the first normalization form 1NF to second normalization form 2NF. In this process we will remove any non-key attributes that only depend on path of the table key to a new table. Enen many data sources normalized after the 2NF but some time we need to proceed for [...]
How to Normalize a DataBase Table : Step-2 Converting the UNF to 1NF
Filed in ASP.NET, SQLAs we have seen previously how to convert the data source to Un-Normalized Form also called UNF. Today we will proceed for the next step. In this step we transform the UNF into the first Normalization Form that is called 1NF. To accomplish this we need to remember a rule: we need to remove repeating [...]
How to Normalize a DataBase Table : Step-1 Converting the Data Source to UNF
Filed in ASP.NET, SQLRecently we have discusses about normalization and the procedure to normalize the data source. Today we will discuss about for this process. As you know that the first step in normalization is to convert the data source to Unnormalized Form that is also called UNF. If you will follow the process accurately then there will be no errors in the first [...]
As we check our coding page in .net application we found that at the top after the namespaces there is a call that is partially defined in every web page. The question arrives in our mind that what is this Partial and why we use the class with partial access specifier. Why we not use [...]
The Normalisation is a data analysis technique to design a database system. The Normalisation allows the database designer to understand the current data structure within an organisation. The end result of a normalisation is a set of entity. We remove the unnecessary redudency by normalising the database table.
The Alias name is the name that is referred to any column name or table name that is given by user. The alias name also used to represent some column or table without using its real name. As we will proceed in this article we will see that how we can use both the alias [...]
Development of software is only a single phase of overall system development. Coding is an important step on system development but maintaining the quality of software is also an important part and a challenging job. Proper testing is important for the good quality assurance. At present, there are different tools available for testing products. The tools like