oracle初始化自然日周六周日表示符号
declare i number;
begin
for i in 36..400 Loop
insert into table(workdate,isholodayflg)values(to_char(sysdate+i,"YYYYMMdd"),
case when to_char(sysdate+i,"d") in ("1","7") then 1 else 0 end );
end loop;
end;
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