What happens if the update subquery returns multiple rows in ms sql server?

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Mention the differences between substr and charindex in sql server.

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What is the difference between grant and with grant while giving permissions to the user?

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What is raid, and how it can influence database performance?

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1.what is the diff between nolock optimizer and read uncommitted isolation? 2.what is the diff between revoke and deny? 3.what is percieved down time? 4.whether password protection are required for backups?if yes why?if no why? 5.what is fill factor? 6.what is cost analysis? 7.what is mean by piece meal restore? 8.what is 'rowguidcol'? 9.impersonate permission? 10.what is selectivity?

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how can we know that how many users are connected in perticuler server??????

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What is a join and their types?

2 Answers   Challenger Financial,

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what’s the difference between Covering Indexes and Clustered Indexes ? how to use clustered index small ?

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What is normalization? What number of normalization shapes are there?

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What are entities and relationships?

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Do you know what are the restrictions that views have to follow?

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How to stop log file growing too big?

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