Check out example codes for "update oracle". It will help you in understanding the concepts better.

Code Example 1

UPDATE table
SET column1 = expression1,
    column2 = expression2,
    ...
    column_n = expression_n
[WHERE conditions];

Code Example 2

UPDATE T_NAME
SET PARAM_1=23, PARAM_2=true
WHERE PARAM_7= 'something'

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