Bogdan SAHLEAN

  • Interests: SQL Server - everthing

SQLServerCentral Article

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Introduction The analysis of blocking in SQL Server can be hard if the SQL Server instance has a high number of active connections. This analysis becomes complicated because busy instances could have more than one blocking connection, meaning that we could have more than just one blocking chain. For every group of blocked connections, we […]

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2021-02-04

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SQLServerCentral Article

Collections: Computed gaps for continuous numbers

Problem Finding the hole for continuous sequences of numbers could be a discouraging task even for advanced programmers. This article presents a new solution based on usage of geometry data type and on a unknown function (if not, maybe less used function) specific designed for geometry objects. Sample: Given the following sequence of [dis]continuous numbers […]

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2020-03-30

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SQLServerCentral Article

Collections

Problem The usage of a collection of integers in some scenarios is considered to be optimal because of the overhead involved by the creation of another user table used just to store numbers, which is the most common solution. What are collections of integers? They are lists or arrays consisting of integers. The number of […]

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2020-02-13

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Question of the Day

A Valid Type?

What happens when I run this code in SQL Server 2019?

DECLARE @variable CURSOR;

See possible answers