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SAP DB Interview Questions and Answers

Question - What happens “Update” command is used without where clause ?

Answer - 1: - It will update all the records with same name in the particular field of the table. 2: - If we dont mention "WHERE" clause in the UPDATE statement, it will update all records satisfying the given condition (if given any ) in the table ! 3: - Based on query condition. it will update all the fields which are mentioned in the query. ex: update employee set firstname= @firstname,lastname=@lastname where employee_id =@employee_id. so in the above case nothing wil be happen if you used where clause or not. if you have many statements in the query you need to use the where clause.


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