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What Is An Index? How It Is Implemented In Oracle Database? |
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Answer» An index is a DATABASE structure used by the server to have direct access of a row in a table. An index is AUTOMATICALLY created when a unique of PRIMARY key constraint CLAUSE is specified in create table command (Ver 7.0) An index is a database structure used by the server to have direct access of a row in a table. An index is automatically created when a unique of primary key constraint clause is specified in create table command (Ver 7.0) |
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