What is, technically, a non-repeatable read?

Joe Sam Shirah

One of the ISO-ANSI SQL defined "phenomena" that can occur with concurrent transactions. If one transaction reads a row, then another transaction updates or deletes the row and commits, the first transaction, on re-read, gets modified data or no data. This is an inconsistency problem within a transaction and addressed by isolation levels.

0 Comments  (click to add your comment)
Comment and Contribute

 

 

 

 

 


(Maximum characters: 1200). You have 1200 characters left.

 

 

About | Sitemap | Contact