INTERVIEW QUESTIONS SAP R/3 DATABASE DETAILS

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

Answer: 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 will be happen if you used where clause or not.

if you have many statements in the query u need to use the where clause.

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 will be happen if you used where clause or not.

if you have many statements in the query u need to use the where clause.


Source: CoolInterview.com

Once the UPDATE statement is executed all records in the table will be updated because there is no condition. Source: CoolInterview.com

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