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List all DEFAULT Constraints in your database

Antonios Chatzipavlis

Ακόμα ένα χρήσιμο metadata query για όσους θέλουν να έχουν συγκεντρωτική πληροφορία αυτή φορά για τα default constraints που έχουν στην βάση τους.

Αυτή την φορά χρησιμοποιώ απευθείας τα system views και σε εκδόσεις πριν το SQL Server 2000 δεν θα δουλεύει το συγκριμένο metadata query.

Σε αυτό παίρνω περιεκτική πληροφορία όπως φαίνεται στην εικόνα που ακολουθεί το παρακάτω metadata query
select 
        SCHEMA_NAME(o.schema_id) as [schema_name]
,        o.name             as [table_name]
,        c.name             as [column_name]
,        d.definition         as [default_definition]
,        d.name             as [constraint_name] 
from sys.default_constraints as d
inner join sys.columns as c
    on c.object_id=d.parent_object_id and d.parent_column_id=c.column_id
inner join sys.objects as o
    on o.object_id=c.object_id
order by 1,2,3;
results

Antonios Chatzipavlis

Antonios Chatzipavlis

Antonios is a Data Solutions Consultant and Trainer. He has been working in IT since 1988. In his career, he has worked as senior developer, IT Manager, Solutions Architect and IT Consultant. Since 1995 he has been devoted on new technologies and software development tools, mainly by Microsoft, either by training company staff and colleagues or assisting them in design, development and implementation as a consultant or chief developer. He has focused in Databases and Data Science since 1995. He specialized in Microsoft SQL Server since version 6.0 in areas like SQL Server Internals, Database Design and Development, Business Intelligence and in 2010 he has started working with Azure Data Platform, NoSQL databases, Big Data Technologies and Machine Learning. He is an active member of many IT communities in Greece, answering colleagues' questions and writing articles in his web site. He is the owner of SQLschool.gr which is a community portal with a lot of information about Microsoft SQL Server. He has been a Microsoft Certified Trainer (MCT) since 2000. Microsoft honored him as MVP on Data Platform due to his activities in SQL Server since 2010. He holds a large number of Microsoft Certifications and Microsoft SQL Server Certifications since version 6.5.


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