Note the following statements that use flashback technology: 1. FLASHBACK TABLE TO SCN ; 2. SELECT * FROM AS OF SCN 123456; 3. FLASHBACK TABLE TO BEFORE DROP; 4. FLASHBACK DATABASE TO TIMESTAMP ; 5. SELECT * FROM VERSIONS AS OF SCN 123456 AND 123999; Which of these statements will be dependent on the availability of relevant undo data in the undo segment?

Oracle

1Z0-034 · Question #123

Note the following statements that use flashback technology: 1. FLASHBACK TABLE <table> TO SCN <scn>; 2. SELECT FROM <table> AS OF SCN 123456; 3. FLASHBACK TABLE <table> TO BEFORE DROP; 4. FLASHBACK D

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Question

Note the following statements that use flashback technology: 1. FLASHBACK TABLE <table> TO SCN <scn>; 2. SELECT * FROM <table> AS OF SCN 123456; 3. FLASHBACK TABLE <table> TO BEFORE DROP; 4. FLASHBACK DATABASE TO TIMESTAMP <timestamp>; 5. SELECT * FROM <table> VERSIONS AS OF SCN 123456 AND 123999; Which of these statements will be dependent on the availability of relevant undo data in the undo segment?

Options

A1, 2, and 5
B1, 3, and 4
C2, 3, 4, and 5
D1, 2, 3, 4, and 5

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Topics

#Flashback Query#undo segments#Flashback Table#SCN dependency

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