TABLOCK Hint can Negatively Impact SQL Server Concurrency
In this article, we look at how using the Tablock hint in SQL Server could impact concurrency and block other sessions.
2023-11-29
In this article, we look at how using the Tablock hint in SQL Server could impact concurrency and block other sessions.
2023-11-29
A post on distributed systems and how schema changes are handled caught Steve's eye. See if you agree with how he thinks this should work.
2023-06-26
127 reads
Learn about the impact of locking and blocking in sessions through some demonstrations of different types of actions.
2020-06-11
6,609 reads
Learn a bit about concurrency problems in SQL Server, the issues they create, and the different isolation levels that help you solve them.
2020-05-12
35,269 reads
In this tip we look at a way to minimize the length of blocking using SQL Server lock timeout.
2020-01-24
When designing for high concurrency, most people look to the hardware for answers. And while it’s true that it plays an important role, there’s a heck of a lot more to it.
2018-03-06
3,361 reads
2013-08-06
2,001 reads
When you can’t get to your data because another application has it locked, a thorough knowledge of SQL Server concurrency will give you the confidence to decide what to do.
2020-11-11 (first published: 2013-07-17)
106,148 reads
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Let’s consider the following script that can be executed without any error on both SQL Sever and PostgreSQL. We define the table t1 in which we insert three records:
create table t1 (id int primary key, city varchar(50)); insert into t1 values (1, 'Rome'), (2, 'New York'), (3, NULL);If we execute the following query, how will the records be sorted in both environments?
select city from t1 order by city;See possible answers