Scripts

Free T-SQL Script: Database Schema Documentation Generator for Generative AI Services Integration

This script automatically generates comprehensive schema documentation that can be easily consumed by AI services for natural language querying, automated report generation, and intelligent data analysis.

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2025年09月03日 (first published: )

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T-SQL Table Valued Function to compare Semantic Versions

Semantic versioning (SemVer) is a standardized system for labeling software releases using a three-part number—major, minor, and patch—optionally followed by pre-release labels and build metadata. Comparing semantic versions is complex because it requires handling both numeric and string components, as well as special precedence rules for pre-releases and stable versions. SQL Server’s hierarchyid data type is ideally suited for comparing the numeric parts of semantic versions, enabling efficient and accurate ordering without the pitfalls of string comparison or manual parsing.

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2025年05月27日

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Question of the Day

The Maximum Value in the Identity Column

I have a table with this data:

TravelLogID CityID StartDate EndDate
1 1 2025年01月01日 2025年01月06日
2 2 2025年01月01日 2025年01月06日
3 3 2025年01月01日 2025年01月06日
4 4 2025年01月01日 2025年01月06日
5 5 2025年01月01日 2025年01月06日
I run this code:
SELECT IDENT_CURRENT('TravelLog')
I get the value 5 back. Now I do this:
SET IDENTITY_INSERT dbo.TravelLog ON
INSERT dbo.TravelLog
(
 TravelLogID,
CityID,
 StartDate,
 EndDate
)
VALUES
(25, 5, '2025-09-12', '2025-09-17')
SET IDENTITY_INSERT dbo.TravelLog OFF
I now run this code.
DBCC CHECKIDENT(TravelLog)
GO
INSERT dbo.TravelLog
(
 CityID,
 StartDate,
 EndDate
)
VALUES
(4, '2025-10-14', '2025-10-17')
GO
What is the value for TravelLogID for the row I inserted for CityID 4 and dates starting on 14 Oct 2025?

See possible answers

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