>>CREATE table date_step (sno n(6),datex date, subject C(20))
>>SET DATE TO DMY
>>
>>INSERT into date_step(sno,datex,subject) VALUES (1,{^2022-05-02},'science')
>>INSERT into date_step(sno,datex,subject) VALUES (2,{^2022-05-03},'science')
>>INSERT into date_step(sno,datex,subject) VALUES (3,{^2022-05-04},'science')
>>INSERT into date_step(sno,datex,subject) VALUES (4,{^2022-05-05},'science')
>>INSERT into date_step(sno,datex,subject) VALUES (5,{^2022-05-06},'science')
>>INSERT into date_step(sno,datex,subject) VALUES (6,{^2022-05-07},'science')
>>INSERT into date_step(sno,datex,subject) VALUES (7,{^2022-05-09},'science')
>>INSERT into date_step(sno,datex,subject) VALUES (8,{^2022-05-10},'science')
>>INSERT into date_step(sno,datex,subject) VALUES (9,{^2022-05-11},'science')
>>INSERT into date_step(sno,datex,subject) VALUES (10,{^2022-05-11},'science')
>>
>>Now I want to update record like this. 
>>start from new date and skip Sunday
>>
>>
>>INSERT into date_step(sno,datex,subject) VALUES (5,{^2022-05-02},'science')&& start from 5
>>INSERT into date_step(sno,datex,subject) VALUES (6,{^2022-05-03},'science')
>>INSERT into date_step(sno,datex,subject) VALUES (7,{^2022-05-04},'science')
>>INSERT into date_step(sno,datex,subject) VALUES (9,{^2022-05-05},'science')&& skip sunday
>>INSERT into date_step(sno,datex,subject) VALUES (10,{^2022-05-06},'science')
>>INSERT into date_step(sno,datex,subject) VALUES (11,{^2022-05-07},'science')
>>INSERT into date_step(sno,datex,subject) VALUES (12,{^2022-05-09},'science')
>>INSERT into date_step(sno,datex,subject) VALUES (13,{^2022-05-10},'science')
>>INSERT into date_step(sno,datex,subject) VALUES (14,{^2022-05-11},'science')
>>INSERT into date_step(sno,datex,subject) VALUES (16,{^2022-05-11},'science')&& skip sunday always skip sunday
>>...................................................
>>
>>