What are wait types?
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how to update a null value field in sql server eg a table contains 3 fields id,name,salary and 3 records salary of 1 record is null i want update the nullfield 111 arun 300 112 ddd 200 113 ttt null i want to update table with add 100 to every record include null after updation the recrds should be 111 arun 400 112 ddd 300 113 ttt 100
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What is mean by candidate key?
What are cursors? Name four types of cursors and when each one would be applied?
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What is the difference between ddl,dml and dcl commands?
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A trigger can reference objects outside the current database? State true or false.
Is sql server 2016 free?
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Can we add an identity column to decimal datatype?
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