Oracle
1Z0-071 · Question #350
Which two statements are true about substitution variables? (Choose two.)
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Retrieving Data Using the SQL SELECT Statement
Question
Which two statements are true about substitution variables? (Choose two.)
Options
- AA substitution variable can be used with any clause in a SELECT statement
- BA substitution variable used to prompt for a column name must be enclosed in a single quotation
- CA substitution variable prefixed with & always prompts only once for a value in a session
- DA substitution variable can be used only in a SELECT statement
- EA substitution variable used to prompt for a column name must be enclosed in double quotation
- FA substitution variable prefixed with && prompts only once for a value in a session unless it is set
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Topics
#substitution variables#SQL*Plus#& variable#&& variable