By Ignatius Fernandez
Beginning Oracle Database 12c Administration is your access aspect right into a profitable and pleasurable profession as an Oracle Database Administrator.
The chapters of this e-book are logically prepared into 4 elements heavily monitoring the way in which your database management profession will certainly evolve. half 1 "Database options" offers helpful historical past in relational database thought and Oracle Database options, half 2 "Database Implementation" teaches the way to enforce an Oracle database appropriately, half three "Database help" exposes you to the day-by-day regimen of a database administrator, and half four "Database Tuning" introduces the high-quality paintings of functionality tuning.
Beginning Oracle Database 12c Administration offers details that you just will not locate in different books on Oracle Database. you will find not just technical info, but additionally assistance on paintings practices which are as very important in your luck as are your technical talents. The author's favourite bankruptcy is "The vast photo and the 10 Deliverables." (It is the editor’s favourite bankruptcy too!) for those who take the teachings in that bankruptcy to middle, you could speedy turn into a better Oracle database administrator than you ever concept possible.
You will snatch the major features of concept in the back of relational database administration platforms and learn the way to:
• set up and configure an Oracle database, and make sure that it’s accurately licensed;
• Execute universal administration initiatives in a Linux environment;
• safeguard opposed to info loss through imposing sound backup and restoration practices; and
• enhance database and question performance.
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Additional info for Beginning Oracle Database 12c Administration: From Novice to Professional
If you’re going buy just one book on database theory, this is the one I recommend. This college textbook, now in its sixth edition, offers not only copious amounts of theory but also some coverage of commercial products such as Oracle Database. ” —Dutch computer scientist Edsger Dijkstra, advocate of structured programming and winner of the 1972 Turing Award, in “Correctness Concerns and, Among Other Things, Why They Are Resented” All database activity is conducted in SQL, and therefore database administrators need to be intimately familiar with it.
Redo Log Files Redo log files help Oracle ensure that the effects of a user’s transaction are durable even if there is a computer failure. Before any data in the data files is changed, the log-writer (LGWR) process stores a copy of the old data (undo information) and the new data (redo information) in the redo log file. In the event of a computer failure, the redo log files enable Oracle to undo the effects of incomplete transactions (uncommitted transactions) and redo committed transactions. The sizes of the redo log files are decided by the database administrator.
These are rules you define, with which data in the database must comply. For example, you can require that employees not be hired without being given a salary or an hourly pay rate. 21 Chapter 1 ■ Relational Database Management Systems The database management system rejects any attempt to violate the integrity constraints when inserting, updating, or deleting data records and typically displays an appropriate error code and message. In fact, the very first Oracle error code, ORA-00001, relates to attempts to violate an integrity constraint.