SQL Isolation Level

MukeshVermaMukeshVerma Member Posts: 6
edited 2014-12-16 in SQL Performance
Hi,

My client is using NAV 2013 and the current Isolation Level is Read Committed. They are experiencing the Table locking and dead locks.

I have come across various blog with the suggestion that the Isolation Level should be changed to "Repeatable Read" from default("Serializable").

Can somebody suggest if "Read Committed" is better or "Repeatable Read"?

Regards
Mukesh Verma

Comments

  • bbrownbbrown MAMember Posts: 3,227
    Are we talking about transactions within NAV? AFAIK NAV does not use "Read Committed".

    NAV 2013 uses "Repeatable Read" for write transactions by default.
    There are no bugs - only undocumented features.
  • RSA_TechRSA_Tech Member Posts: 65
    Hey Mukesh,
    There may be another cause of the locks you're experiencing.

    Are the locks happening for specific processes or at certain times of the day?

    Do they resolve themselves slowly or are you guys having to blow them away?
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