Technology Questions

ALTER SYSTEM SWITCH LOGFILE;

The Apple compilers are based on the compilers of the GNU Compiler Collection.

Redo logs are logical and physical structures that are designed to hold all the changes made to a database and are intended to aid in the recovery of a database.

IOS 4 and above supports multi-tasking and allows apps to remain in the background until they are launched again or until they are terminated.  

ALTER INDEX <index_name> REBUILD;

To perform one of these function on an index, table, or cluster:

 - To collect statistics about object used by the optimizer and store them in the data dictionary. 

 - To delete statistics about the object used by object from the data dictionary.

 - To validate the structure of the object.

 - To identify migrated and chained rows off the table or cluster.

A distributed database is a network of databases managed by multiple database servers that appears to a user as single logical database. The data of all databases in the distributed database can be simultaneously accessed and modified.

IOS - 6.1.3 (updated on 5/15/13 3:15 AM Pacific Daylight Time)