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Title: Which comparison operator allows you to search for NULL values in a subquery? Post by: Bermet on Jan 31, 2018 Which comparison operator allows you to search for NULL values in a subquery?
a. IS NULL b. NVL c. =NULL d. NVLS Title: Which comparison operator allows you to search for NULL values in a subquery? Post by: nopro on Jan 31, 2018 Content hidden
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