What is the difference between the lock mode SRX and X

Hi,
I can really not find more information abort the difference between the lock mode
Share Row Exclusive (SRX) and Exclusive (X).
regards,
U8

[url http://download-uk.oracle.com/docs/cd/B19306_01/server.102/b14220/consist.htm#sthref2099]http://download-uk.oracle.com/docs/cd/B19306_01/server.102/b14220/consist.htm#sthref2099
Regards,
Rob.

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What are the lock modes in Lock object

What are the lock modes in Lock object ?
what are the divfferences between
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Shared
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How the lock consists ?

HI
Lock objects are used to synchronize access to the same data by more than one program.
The lock mode controls whether several users can access data records at the same time. The lock mode can be assigned separately for each table in the lock object. When the lock is set, the corresponding lock entry is stored in the lock table of the system for each table.
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3.Exclusive not cummulative
Exclusive lock: The locked data can only be displayed or edited by a single user. A request for another exclusive lock or for a shared lock is rejected.
Shared lock: More than one user can access the locked data at the same time in display mode. A request for another shared lock is accepted, even if it comes from another user. An exclusive lock is rejected.
Exclusive but not cumulative: Exclusive locks can be requested several times from the same transaction and are processed successively. In contrast, exclusive but not cumulative locks can be called only once from the same transaction. All other lock requests are rejected.
please go through these links:
<a href="http://help.sap.com/saphelp_nw04/helpdata/en/a2/3547360f2ea61fe10000009b38f839/frameset.htm">http://help.sap.com/saphelp_nw04/helpdata/en/a2/3547360f2ea61fe10000009b38f839/frameset.htm</a>
<a href="http://help.sap.com/saphelp_nw04/helpdata/en/af/22ab01dd0b11d1952000a0c929b3c3/frameset.htm">http://help.sap.com/saphelp_nw04/helpdata/en/af/22ab01dd0b11d1952000a0c929b3c3/frameset.htm</a>
<a href="http://help.sap.com/saphelp_nw04/helpdata/en/cf/21eeb2446011d189700000e8322d00/frameset.htm">http://help.sap.com/saphelp_nw04/helpdata/en/cf/21eeb2446011d189700000e8322d00/frameset.htm</a>
<a href="http://help.sap.com/saphelp_nw04/helpdata/en/cf/21eebf446011d189700000e8322d00/frameset.htm">http://help.sap.com/saphelp_nw04/helpdata/en/cf/21eebf446011d189700000e8322d00/frameset.htm</a>
<a href="http://help.sap.com/saphelp_nw04/helpdata/en/cf/21eed9446011d189700000e8322d00/frameset.htm">http://help.sap.com/saphelp_nw04/helpdata/en/cf/21eed9446011d189700000e8322d00/frameset.htm</a>
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hi Naresh,
SAP R/3--
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What is the difference between lock mode E and X.

what is the difference between lock mode E and X.

Hi
The lock mode controls whether several users can access data records at the same time. The lock mode can be assigned separately for each table in the lock object. When the lock is set, the corresponding lock entry is stored in the lock table of the system for each table
Lock modes:
S (Shared):
Several users (transactions) can access locked data at the same time in display mode. A request for another shared lock is accepted, even if it comes from another user. An exclusive lock set on an object that already has a shared lock will be rejected.
E (Exclusive).
An exclusive lock protects the locked object against all types of locks from other transactions. Only the same lock owner can reset the lock (accumulate).
X (eXclusive non-cumulative):
Exclusive locks can be requested several times from the same transaction and are processed successively. In contrast, exclusive but not cumulative locks can be called only once from the same transaction. Each further lock request will be rejected.
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If it is helpful rewards points.
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What is the difference between acquiring lock on a CLASS and OBJECT (instance) of that class

What is the difference between acquiring lock on a CLASS and OBJECT (instance) of that class

What is the difference between acquiring lock on a CLASS and OBJECT (instance) of that class
The Java Tutotials has several trails that discuss both implicit and explicit locking, how they work and has code examples.
The Concurrency trail has the links to the other sections you need to review
http://docs.oracle.com/javase/tutorial/essential/concurrency/index.html
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http://docs.oracle.com/javase/tutorial/essential/concurrency/syncmeth.html
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http://docs.oracle.com/javase/tutorial/essential/concurrency/newlocks.html

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Venu,
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what are the features in 4.7 EE version in general.
what are the features in ECC 6.0 version in general.
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What is the difference between the lock mode SRX and X

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