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SELECT FOR UPDATE Table Lock (TM) Mode Has Been Changed From 10g to 11g (Doc ID 858518.1)

Last updated on AUGUST 22, 2022

Applies to:

Oracle Database - Enterprise Edition - Version 11.1.0.7 and later
Information in this document applies to any platform.
Information in this document applies to any platform.

Goal

Why do the acquired table lock and the compatible ones for SELECT FOR UPDATE are different accross
10g & 11g?

10g:
----
https://docs.oracle.com/cd/B19306_01/server.102/b14220/consist.htm#BABCJIAJ

Oracle® Database Concepts
10g Release 2 (10.2)

B14220-02


SELECT ... FROM table FOR UPDATE OF ...
Table Lock Mode: RS
RS : Y*
RX : Y*
S : Y*
SRX: Y*
X : N

 

11g:
----
http://download.oracle.com/docs/cd/B28359_01/server.111/b28318/consist.htm#BABCJIAJ

Oracle® Database Concepts
11g Release 1 (11.1)

B28318-06


SELECT ... FROM table FOR UPDATE OF ...
Table Lock Mode: RX
RS : Y*
RX : Y*
S : N
SRX: N
X : N

 

Solution

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In this Document
Goal
Solution
References


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