📄 dupvalonindex.sql
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REM DupValOnIndex.sql
REM Chapter 7, Oracle9i PL/SQL Programming by Scott Urman
REM This block will raise the DUP_VAL_ON_INDEX exception.
BEGIN
INSERT INTO students (id, first_name, last_name)
VALUES (20000, 'John', 'Smith');
INSERT INTO students (id, first_name, last_name)
VALUES (20000, 'Susan', 'Ryan');
END;
/
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