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Tag: Rowid

3 ways to remove duplicate data

April 16, 2019 Database Tips Microsoft SQL Server, MySQL, ORACLE, PL/SQL, PostgreSQL, SQL, SQLite, Transact-SQL functions

Duplicate data can be generated in the database due to design error, software bugs or misuse by end users. Depending[…]

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Are ROWNUM and ROWID the same column?

November 2, 2018 Database Tips ORACLE, SQL

No. In Oracle DBMS, ROWNUM and ROWID are pseudocolumns that can be accessed in SQL queries, but they aren’t  the[…]

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