By applying such collations to sql operations an application can perform string comparisons and matching in a case insensitive way independent of the language of the data with the new oracle database 12 c release 2 122 ability to declare collations for columns you can declare a column to always be compared in a case insensitive way the column collation if not specified explicitly is inherited from a table default collation which in turn is inherited from a schema default collation . Release 1 12102 new features this chapter contains descriptions of the features that are available in oracle database 12 c release 1 12102 this chapter contains the following sections section 11 advanced index compression section 12 approximate count distinct section 13 attribute clustering. Oracle database 12c new features freeman robert isbn 9780071799317 kostenloser versand fur alle bucher mit versand und verkauf duch amazon. Oracle database 12c has about 500 new features when compared to 11gr2 among these features there will be some which get the mainstream attention but often little caveats or enhancements prove to be as vital as the big ones one such enhancement is the ability to have multiple indexes on same column or same set of columns lets look at this feature and the possible uses cases
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