stringsql = "select * from people p where p.id = ? ";
stringsql = "select * from people p where p.id = "+id;
stringsql = "select people_name,pepole_age from people ";
stringsql = "select * from people ";
stringsql = "select * from people p where p.id like 'parm1%' ";
stringsql = "select * from people p where p.id like '%parm1%' ";
stringsql = "select people_name,pepole_age from people order by name,age";
stringsql = "select people_name,pepole_age from people order by 6,8";
stringsql = "select name from student union all select name from teacher";
stringsql = "select name from student union select name from teacher";
stringsql = "select people_name,pepole_age from people where create_date=date1 ";
stringsql = "select people_name,pepole_age from people where trunc(create_date)=date1";
stringsql = "select * from orders where customer_name not exist (select customer_name from customer)";
stringsql = "select * from orders where customer_name not in(select customer_name from customer)";
select * from A where cc in (select cc from B)
select * from A where exists(select cc from B where cc=A.cc)
select * from B where cc in (select cc from A)
select * from B where exists(select cc from A where cc=B.cc)
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