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  • Updating a column value

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    Updating a column value using Update Statement:

    UPDATE statement is used to change the value for a column or to change multiple records using a condition. It is a data manipulation language command which are used for managing data.

    Syntax:

    UPDATE tablename SET column1=value1,column2=value2,.... columnN WHERE condition;
    

    Example 1:

    UPDATE Employee SET EmpName='Rahul ', City='Noida' WHERE EmpID=102; 
    

    The above query will change the employee name to Rahul and city 'Noida' for those employee whose Employee Id is 102.

    Example 2:

    UPDATE Employee SET EmpID=102  WHERE EmpName='Rahul'; 
    

    The above query will change the employee ID to 102 for those employee whose name is Rahul.

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