Simple is Hard

create table test_num ( var1 numeric(10,3) ) ; insert into test_num ( var1 ) values ( 10.12); select var1 + 1 from test_num select var1 + 10.2 from test_num select var1 + cast ( to_number('10.23','00.00') as numeric(10,4) ) from test_num select to_number('10.23','00.000') from db_root create table test_data1 ( var1 numeric(10,0) , var2 integer ); insert into test_data1 ( var1, var2 ) values ( 10..

create table test_data1 ( int_data int, char_date varchar(8) default to_char(sysdate,'YYYYMMDD') not null ); CREATE INDEX ON test_data1 (char_date); create table test_data2 ( int_data int, char_date date default sysdate not null ); CREATE INDEX ON test_data2 (char_date); create table test_data3 ( int_data int, char_date timestamp default systimestamp not null ); CREATE INDEX ON test_data3 (char_..