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Costin Manda

Romanian .NET C# developer for 20 years+.

Location Bucharest, Romania Joined Joined on  Personal website https://siderite.dev github website twitter website

Work

Senior software developer at Euroclear

Writing Debut
Six Year Club
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16 Week Writing Streak
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Migrate data from an SQL Server table to another, without locking it

Migrate data from an SQL Server table to another, without locking it

Comments
8 min read

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SELECT INTO quirk I had no idea about

SELECT INTO quirk I had no idea about

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2 min read
Firefox and content_scripts.world

Firefox and content_scripts.world

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3 min read
Huge SQL performance gains from using INTs

Huge SQL performance gains from using INTs

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5 min read
EF Core 6 - correct types halving the execution time!

EF Core 6 - correct types halving the execution time!

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4 min read
EF Core 6 - This SqlTransaction has completed; it is no longer usable.

EF Core 6 - This SqlTransaction has completed; it is no longer usable.

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5 min read
In class members which are functions, this is not defined unless you ask for it

In class members which are functions, this is not defined unless you ask for it

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1 min read
Disabling OneDrive in Microsoft Office

Disabling OneDrive in Microsoft Office

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2 min read
Disable CSP (headers AND meta tag) in Chromium based browsers

Disable CSP (headers AND meta tag) in Chromium based browsers

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13 min read
SQL Server - Timing out because of table variables

SQL Server - Timing out because of table variables

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3 min read
Better options than object and collection initializers

Better options than object and collection initializers

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4 min read
Custom resolve handler in Microsoft's ServiceProvider (enabling property injection)

Custom resolve handler in Microsoft's ServiceProvider (enabling property injection)

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5 min read
XmlSerializer memory leak

XmlSerializer memory leak

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3 min read
String.Join in Excel

String.Join in Excel

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3 min read
Fast fuzzy searching of a string in a list

Fast fuzzy searching of a string in a list

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4 min read
Temporary tables better than table variables!

Temporary tables better than table variables!

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3 min read
Windows start menu search not working, search textbox not accepting input

Windows start menu search not working, search textbox not accepting input

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2 min read
Careful with table partitioning in SQL

Careful with table partitioning in SQL

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2 min read
Introduction to SQL (Microsoft SQL Server)

Introduction to SQL (Microsoft SQL Server)

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27 min read
Careful with VIEWs with SCHEMABINDING in Microsoft SQL Server

Careful with VIEWs with SCHEMABINDING in Microsoft SQL Server

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4 min read
Quick SQL hint: Use Application Name in connection strings

Quick SQL hint: Use Application Name in connection strings

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3 min read
Game idea: Candidate Chess

Game idea: Candidate Chess

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2 min read
Unpin apps from Windows 11 Start Menu

Unpin apps from Windows 11 Start Menu

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1 min read
Chess engines are optimizing for the wrong thing!

Chess engines are optimizing for the wrong thing!

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3 min read
READPAST your problems in SQL

READPAST your problems in SQL

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3 min read
SQL date 1900-01-01 appearing out of nowhere

SQL date 1900-01-01 appearing out of nowhere

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1 min read
Enhancing .NET exceptions with just a line of code

Enhancing .NET exceptions with just a line of code

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5 min read
Learn T-SQL Querying: A guide to developing efficient and elegant T-SQL code, by Pedro Lopes, Pam Lahoud

Learn T-SQL Querying: A guide to developing efficient and elegant T-SQL code, by Pedro Lopes, Pam Lahoud

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1 min read
Explaining the DOM: a script helper for CSS and ad blockers

Explaining the DOM: a script helper for CSS and ad blockers

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4 min read
VALUES in Microsoft Transact-SQL

VALUES in Microsoft Transact-SQL

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2 min read
13.5 ways of being better than everybody else!

13.5 ways of being better than everybody else!

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1 min read
I am in love with my browser

I am in love with my browser

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4 min read
Transition from social media

Transition from social media

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11 min read
Windows 11 Taskbar sucks [Solved]

Windows 11 Taskbar sucks [Solved]

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1 min read
System.ArgumentException: Argument passed in is not serializable.

System.ArgumentException: Argument passed in is not serializable.

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2 min read
Why programs ARE algorithms, but not like the ones in interviews

Why programs ARE algorithms, but not like the ones in interviews

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8 min read
Careful using Regex classes

Careful using Regex classes

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2 min read
Clean way to build URLs in .NET

Clean way to build URLs in .NET

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4 min read
Creating a console app with Dependency Injection in .NET Core

Creating a console app with Dependency Injection in .NET Core

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4 min read
Everything good in the world (even if nobody cares about you)

Everything good in the world (even if nobody cares about you)

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3 min read
Do abstract flow steps in small methods for readability

Do abstract flow steps in small methods for readability

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6 min read
Why all articles about demystifying JS array methods are rubbish

Why all articles about demystifying JS array methods are rubbish

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8 min read
What's important in tech interviews

What's important in tech interviews

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1 min read
VB.Net Gotcha: Always assign variables when declaring them

VB.Net Gotcha: Always assign variables when declaring them

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1 min read
Learning from React - part 6

Learning from React - part 6

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8 min read
LInQer for Typescript is here!

LInQer for Typescript is here!

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1 min read
Learning from React - part 5

Learning from React - part 5

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7 min read
Learning from React - part 4

Learning from React - part 4

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7 min read
Learning from React - part 3

Learning from React - part 3

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8 min read
Learning from React - part 2

Learning from React - part 2

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5 min read
Learning from React - part 1

Learning from React - part 1

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5 min read
Webpack "there are multiple modules with names that only differ in casing"

Webpack "there are multiple modules with names that only differ in casing"

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2 min read
Running npm start without opening browser

Running npm start without opening browser

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1 min read
Making a React Typescript application work on Internet Explorer 11

Making a React Typescript application work on Internet Explorer 11

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2 min read
Nobody cares about you!

Nobody cares about you!

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4 min read
Interception of object methods and properties in .NET Framework and Core

Interception of object methods and properties in .NET Framework and Core

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3 min read
Interview question: generate all valid combinations of n pairs of parentheses

Interview question: generate all valid combinations of n pairs of parentheses

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6 min read
Is lazy dependency injection a good idea?

Is lazy dependency injection a good idea?

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6 min read
Using Kendo UI for jQuery MultiSelect with dynamic values

Using Kendo UI for jQuery MultiSelect with dynamic values

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3 min read
Optimizing an SQL Server query

Optimizing an SQL Server query

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2 min read
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