What are synonyms in PL/SQL on Oracle?

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an alias for a database object.
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In PL/SQL on Oracle, a synonym is an alias or alternative name for a database object (like a table, view, sequence, procedure, etc.) that simplifies SQL statements and provides data independence.
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A synonym is an alias for a database object. Synonyms are often used for security and convenience, because they can be used to mask object name and object owner. In addition, you can use a synonym to simplify SQL statements.
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