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A cursor is a pointer to a private SQL area that stores information about the processing of a SELECT or data manipulation language (DML) statement (INSERT, UPDATE, DELETE, or MERGE).
Cursor management of DML statements is handled by Oracle Database, but PL/SQL offers several ways to define and manipulate cursors to execute SELECT statements.
This occurs when a malicious user “injects,” or inserts into the statement, code that changes the behavior of that SQL statement.
For advice on avoiding SQL injection–based security breaches, check out “How to Write SQL Injection Proof PL/SQL".
Oracle Database makes it easy to execute SQL statements (and PL/SQL blocks) dynamically with the EXECUTE IMMEDIATE statement.' FROM '