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Which global variables can be used to determine if a transaction is still open?

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Which global variables can be used to determine if a transaction is still open? (a) @@NESTLEVEL (b) @@FETCH_STATUS (c) @@TRANCOUNT (d) @@CONNECTIONS This question was addressed to me in an online quiz. The doubt is from Estimating Statistics of Expression Results topic in portion Query Processing Techniques of Database Management

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The correct choice is (c) @@TRANCOUNT Easy explanation - PRINT @@TRANCOUNT — The BEGIN TRAN statement will increment the — transaction count by 1.

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