Shared lock or read lock, Database Management System

Shared lock or Read Lock

  • It is requested by a transaction that needs to just read the value of data item.
  • A shared lock on a data item does not permit an exclusive lock to be placed but allows any number of shared locks to be placed on that item.

 

Posted Date: 3/12/2013 2:37:42 AM | Location : United States







Related Discussions:- Shared lock or read lock, Assignment Help, Ask Question on Shared lock or read lock, Get Answer, Expert's Help, Shared lock or read lock Discussions

Write discussion on Shared lock or read lock
Your posts are moderated
Related Questions

1. Create the tables for the play-scheme database as specified in the TMA. 2. Enter the data as given in the spreadsheet. 3. Create queries to retrieve specified information

A database administrator''s responsibilities and data contents

what is Mapping Constraints? with examples

Having Clause with sub queries: First we have to recollect the GROUP BYclause. The following query searches the minimum salary in every department. SELECT DEPTNO, MIN (SAL)

What are the different kinds of database end users? Discuss the major activities of each? End-Users - End-users are the people whose jobs need access to the database for que

I need solution of the question posted at http://www.expertsmind.com/questions/sql-query-for-testing-triggers-and-stored-procedures-30140149.aspx

explain the steps for reduction of er model into relational model?

What is document scanning and imaging? Document scanning and imaging, or digital archiving, is the method of scanning a document into a digital image to archive and retrieve a

Northwind Pty Ltd sells a variety of food products throughout the world.  They want to use the reporting features of SAP's Business Information Warehouse to better understand their