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Oracle DROP foreign key.

    After creating a foreign key, you may need to drop the foreign key from the table. You can do this with the ALTER TABLE operator in Oracle/PLSQL….

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    Oracle Foreign Keys.

    Foreign Keys is a way to ensure data integrity in your Oracle database. A Foreign Keys means that values in one table must also appear in another tabl…

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    Oracle Primary Keys.

    In Oracle PLSQL primary key is a single field or a combination of fields that determines the uniqueness of the record. Fields that are part of the pri…

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    Oracle Indexes.

      In this post you will learn how to create, rename and drop indexes in Oracle/PLSQL with syntax and examples….

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      Oracle unique constraints.

      In this post you will learn how to create, delete, disable, and enable unique constraints in Oracle with syntax and examples.

      A unique constraint is…

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