The following example queries a string to determine the number of numeric digits it contains. Note that the query is "reused" after it is executed the first time. This is possible because the query ...

This example shows how to use a LINQ query to count the occurrences of a specified word in a string. Note that to perform the count, first the xref:System.String.Split%2A method is called to create an ...

In relational databases, VARCHAR is one of the most commonly used string data types for ... VARCHAR among various databases, with SQL Server and PostgreSQL being particularly representative, which ...

I checked it again recently though and now it does something very handy indeed: it allows you to pass parameters to SQL queries. Before this, if you wanted to use parameters in your SQL, you had to do ...

Dino Esposito explains JSON-to-rowset native support in SQL Server 2016 and provides a realistic perspective of data query when you have JSON data stored in the database.

This is because SQL Server did not support UTF-8 in its early versions and needed to handle Unicode characters separately through the NVARCHAR type. The 'N' must be added in the following cases: The ...