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> Grant DBA to User01;The following are used User01:Sql> Conn User01/passwordConnected.sql> CREATE TABLE t1 (x int);sql> INSERT INTO T1 values (1);Sql> commit;Session1:sql> Update T1 set x=11 where x=1;Sql> select * from T1;Session 2:Sql> select * from T1;Session 1:Sql> commit;Session 2:Sql> select * from T1;Test serializable:Session1:Sql> alter session set isolation_level=serializable;Repeat the above stepsThe conflict between writing and writing is

Package Description:Description: Wind brother Oracle Database Backup and Recovery training (case, combat, in-depth, comprehensive), DBA primary to the ashes of the transition.Content: Wind Brother Oracle Database backup recovery and storage disaster base, control file and parameter file details, storage structure in-depth analysis,

The page number in the notes for ORACLE Advanced Training Course 2nd learning notebook corresponds to Oracle9i Database Management Basics II ed 1.1 vol.1.pdf Guide: http://blog.csdn.net/magus_yang/archive/2006/10/10/1328283.aspx Author: jackyang (JackYang.sh@gmail.com) Time: 2006-10-10 three statuses of database startup: 1. 3 steps of opening nomount2. mount3. Open Database: 1. enter the nomount status, ope

Tags: format operator tween query _id between DBA ble courseSYS is the highest-privileged Oracle DBSNMP: Simple Network Management system Ctrl+d Return to Oracle directory enter exit in SQL can also Select; column where: Row Sqlplus/as SYSDBA ENTER SQL Conn hr/hr use HR user Lower: Automatically change the case to lowercase Sql> Select last_name from Employees: S