Abstract: When using dynamic queries, there are lots of chances that a user may inject in the query some extra statements that can result in a different database request. SQL injection constitutes a ...

I'm working with a SQL Server database and trying to execute a query that joins two tables: ParameterClasses and EquipmentClasses. Both tables contain a column named Id. However, the query fails with ...

A database query is a request for data from a database. It’s a way for a user or a program to retrieve data stored in a database by asking questions about the data. But how do you do that? In part 1 ...

Part of the SQL Server 2022 blog series. Cardinality estimation (CE) is a process used by the query optimizer to estimate the number of rows returned by a query or sub-part of a query. These estimates ...

Do you want to find out how to avoid duplicates in the results of a SQL SELECT query? This article will show you how. Simply use the DISTINCT clause and between the SELECT clause and the fields.

In Sql Server 2016 CTP2 is added FOR JSON query clause that formats result set of T-Sql query as JSON text see FOR JSON on MSDN. However, in the browser I'm getting ...