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The difference between libraries and frameworks

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The concept behind frameworks and libraries is to provide reusable code that you can use to perform everyday tasks so that developers don’t have to write all of the code from scratch for every project. However, there are some differences that you need to understand as you start writing code, which I will cover in this article.

2023-07-05

SQLServerCentral Editorial

Self-Service Databases

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When I first started work as a software developer, I knew that getting an environment set up where I could compile a project might take a few hours or a few days. The complexities of how people built software projects, the dependencies, and more were handled in a very immature manner. These days I can […]

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2022-11-16

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External Article

Normal Forms

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To prevent data change anomalies, a database should be normalized. Did you know that there are 10 normal forms? In this article, Joe Celko reviews normalizing databases including commonly used normal forms.

2020-12-15

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Fun with JSON II

By Steve Jones - SSC Editor

Comments posted to this topic are about the item Fun with JSON II

Changing Data Types

By Steve Jones - SSC Editor

Comments posted to this topic are about the item Changing Data Types

Answering Questions On Dropped Columns

By Cláudio Silva

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Question of the Day

Fun with JSON II

I have some data in a table:

CREATE TABLE #test_data
(
    id INT PRIMARY KEY,
    name VARCHAR(100),
    birth_date DATE
);

-- Step 2: Insert rows  
INSERT INTO #test_data
VALUES
(1, 'Olivia', '2025-01-05'),
(2, 'Emma', '2025-03-02'),
(3, 'Liam', '2025-11-15'),
(4, 'Noah', '2025-12-22');
If I run this query, how many rows are returned?
SELECT t1.[key] AS row,
       t2.*
FROM OPENJSON(
     (
         SELECT t.* FROM #test_data AS t FOR JSON PATH
     )
             ) t1
    CROSS APPLY OPENJSON(t1.value) t2;

See possible answers