在plsql过程中声明日期并获取错误

Question

我不知道select语句中的错误是什么....

create or replace procedure sampl_proc 
is
startdate DATE;
begin
select tick_date into startdate from utv.tick where tick_date= ('16/05/2017 09:00:09' , 'yyyy/mm/dd hh24:mi:ss');
dbms_output.put_line(startdate);
end;

，错误是：[Error] ORA-01797 (5: 62): PL/SQL: ORA-01797: this operator must be followed by ANY or ALL

Answer 1

试试这个（to_date func）

 create or replace procedure sampl_proc 
is
startdate DATE;
begin
select tick_date into startdate from utv.tick where tick_date= to_date('16/05/2017 09:00:09' , 'yyyy/mm/dd hh24:mi:ss');
dbms_output.put_line(startdate);
end;