DBMS Lock-Based Protocol MCQs: This section contains multiple-choice questions and answers on Lock-Based Protocol in DBMS. Submitted by Anushree Goswami, on April 20, 2022 1. When using this type of protocol, e
❮ CheckPoint in DBMSConcurrency Control ❯ Top Related Articles: Types of DBMS (Database Management System) Failure Classification in DBMS Lock based Protocol in DBMS
The problem inherent in the 2PL protocol is a deadlock, where a set of transactions holding some locks indefinitely wait for an additional lock that is already held by other transactions in the set The deadlock detector is a DBMS subcomponent that examines periodically whether a system is in ...
Type --- --- --- DB_LINK VARCHAR2(128) OWNER_ID NUMBER LOGGED_ON VARCHAR2(3) HETEROGENEOUS VARCHAR2(3) PROTOCOL VARCHAR2(6) OPEN_CURSORS NUMBER IN_TRANSACTION VARCHAR2(3) UPDATE_SENT VARCHAR2(3) COMMIT_POINT_STRENGTH NUMBERSVRMGR> desc gv$dblinkColumn Name Null? Type --- --- --...
In Oracle Database 10g Release 2, you can create the wrapped code directly without a script by calling the supplied procedure: Copy Copied to Clipboard Error: Could not Copy begin dbms_ddl.create_wrapped ('create or replace function myfunc ...') end; You can also use this to write your...
00:00:00 oracleDBA102 (DESCRIPTION=(LOCAL=YES)(ADDRESS=(PROTOCOL=beq)))The first one you’ve seen before (the process for the SQL*Plus session). The second one—process ID 6340—is the server process that Oracle creates for the user. Note the Parent Process ID of the process; it’s...
4.使用dbms_transaction包的相关函数,如: SQL> select sid,type,lmode from v$lock where sid =(select distinct sid from v$mystat) and type in ('TX','TM'); no rows selected SQL> exec dbms_output.put_line( dbms_transaction.local_transaction_id(true) ); ...
CASE in JOIN CONDITION CASE STATEMENT AS A CONDITIONAND ALIAS CASE statement based on TIME field case statement for count between two dates CASE statement in SQL returns Null CASE statement in WHERE clause for IS NULL: I want to say IS or IS NOT Null for a column using CASE Case Statement...
In subject area: Social Sciences A deadlock refers to a situation where a square-faced solid bolt, such as a dead bolt, is turned by hand into a locked position and cannot be opened without the correct key or mechanism. AI generated definition based on: Handbook of Loss Prevention and Cri...
Techniques are provided for lock management. The techniques are based on an enhanced lock management system that generates a semantic response in response to lock requests for a res