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Consider the grammar below. -> | ; -> = ce> -> + | - | -> | const -> a | b |C d In the rightmost derivation of "a=const; b=a", what is the 7th sentential form? (the first one is ) Select one: a. = ; a = b O b. = ; b = a O c.; = O d.; = a O e.;b = a

Consider the grammar below. -> | ; -> = ce> -> + | - | -> | const -> a | b |C d In the rightmost derivation of "a=const; b=a", what is the 7th sentential form? (the first one is ) Select one: a. = ; a = b O b. = ; b = a O c.; = O d.; = a O e.;b = a

Database System Concepts
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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Consider the grammar below. <ss> -> <s> | <s> ; <ss> <s> -> <V> = <e> <e> -> <e> + <t> | <e> - <t> | <t> <t> -> <v>| const <v> -> a | b| c|d In the rightmost derivation of "a=const ; b=a", what is the 7th sentential form? (the first one is <ss>) Select one: a.<v> = <e>; a = b b.<v> = <e>;b = a C.<s>; <v> = <e> d.<s>; <v> = a e.<s> ; b = a
Transcribed Image Text:Consider the grammar below. <ss> -> <s> | <s> ; <ss> <s> -> <V> = <e> <e> -> <e> + <t> | <e> - <t> | <t> <t> -> <v>| const <v> -> a | b| c|d In the rightmost derivation of "a=const ; b=a", what is the 7th sentential form? (the first one is <ss>) Select one: a.<v> = <e>; a = b b.<v> = <e>;b = a C.<s>; <v> = <e> d.<s>; <v> = a e.<s> ; b = a
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