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Ενδιαφέρουσες αλλαγές στα μηνύματα λάθους

Antonios Chatzipavlis
Saturday 23 July 2011

Με αφορμή την ενασχόληση μου με την επιμέλεια των ελληνικών μηνυμάτων λαθών στον SQL Server DENALI, διαπίστωσα ότι έχουν γίνει αρκετά ενδιαφέρουσες αλλαγές σε αυτά.

Μια τέτοια η οποία είναι αρκετά ενδιαφέρουσα και πρωτίστως χρήσιμη είναι ότι όταν πλέον έχει λάθος το οποίο παραβιάζει τον primary key constraint δηλαδή πάμε να βάλουμε ένα pk το οποίο ήδη υπάρχει ενώ μέχρι τώρα απλά είχα το μήνυμα λάθους τώρα έχω και την τιμή . Cool!!!

Ας δούμε ένα παράδειγμα για αυτό

create table X (id int not null primary key, data nvarchar(100))
insert into X(id,data) values (1,'A'),(2,'B'),(3,'C')
insert into X(id,data) values (1,'A'),(4,'B'),(5,'C')
set language 'greek'
insert into X(id,data) values (1,'A'),(4,'B'),(5,'C')

Πλέον το μήνυμα λάθους είναι

Msg 2627, Level 14, State 1, Line 1
Violation of PRIMARY KEY constraint 'PK__X__3213E83F7B68C891'. Cannot insert duplicate key in object 'dbo.X'. The duplicate key value is (1).

Και στα ελληνικά

Msg 2627, Level 14, State 1, Line 4
Παραβίαση του περιορισμού PRIMARY KEY 'PK__X__3213E83F7B68C891'. Δεν είναι δυνατή η εισαγωγή διπλότυπου κλειδιού στο αντικείμενο 'dbo.X'. Η τιμή του διπλότυπου κλειδιού είναι (1).

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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