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Showing posts from August 9, 2009

Question 13: DDL and Commit

I have updated some tables and before commit if I will give one DDL command means what will happen? For example CREATE TABLE test(fldname number(10)); insert into test (fldname) values (10); insert into test (fldname) values (20); After that without giving Commit statement, I issued one DDL command CREATE TABLE test1( sno number(10)) What aobut the previous inserts? Is it committed or not? explain. Answer: I checked this and found the following 3 points. Point No. 1: If we give a DDL command with syntax error means it will not commit and gives the error. For example the following statement CREATE TABLE test(fldname number(10), ); note that the comma, gives "invalid identifier.. " error and without committing the INSERT statements. Point No. 2: If the given DDL command executes without any error means it will auto commit the INSERT statements. Point No. 3: If we give a DDL command without any syntax error and that statement not execute also auto commit the INSERT st