By April C. Sims
This booklet is designed to hide the issues that beginner DBAs quite fight with. This guide covers a minimum volume of theoretical details ahead of exhibiting you ways to beat universal difficulties by utilizing real-life examples. It covers either Oracle 11g R1 and 11g R2 in examples, with fabric acceptable to all types of Oracle. This publication is for you when you are in control of an Oracle database. it may be effortless to think crushed. no matter if you're a unmarried worker or the DBA supervisor of a number of staff, even if you're taking over an latest place or taking on a newly created one – this e-book is designed to be a sanity money. if you would like counsel for migrating to 11g or enforcing Oracle's greatest Availability structure, you will discover this publication very valuable.
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The script would need to verify the ORACLE_HOME and the correct database combination, as there is the possibility of several combinations. Each database would require their own ORACLE_HOME instead of sharing the same home between multiple databases. Setting environmental variables can be done with local customizations instead of using the Oracle-supplied oraenv file. • One OS user per Oracle release, which would result in less ORACLE_HOME installs than one OS user account/database type. Running OS shell scripts against this type of database would more than likely be a combination of oraenv and custom environmental variables.
Notice the prompt that you will see if you use the command as in the profile listed above: A note about prompts: Every person will want to customize their own prompt so; look around for various versions that tickle your fancy. This one is better than most examples to compare to. Notice the small difference in the prompt before and after? ORACLE_SID is now defined because oraenv is executed, which also runs dbhome (also located in /usr/local/bin), but these scripts require a valid entry in /etc/oratab.
Most of them are located in $ORACLE_HOME/bin: • wrap—encrypts stored procedures for advanced use • oerr—displays oracle errors. Syntax: oerr ora 12154 • Sysresv—instance and shared memory segments • Tkprof—formats output trace file into readable format • Dbshut—shell script to shut down all instances • dbstart—shell script to start up all instances at boot • Dbhome—sets ORACLE_HOME • Oraenv—sets environmental variables for ORACLE_SID • trcasst—trace assistant [ 39 ] Maintaining Oracle Standards Guidelines for scripting These are general suggestions for someone with some experience with a Unix operating system.