itest.sql
上传用户:blenddy
上传日期:2007-01-07
资源大小:6495k
文件大小:1k
- --
- -- Test int8 64-bit integers.
- --
- drop table qtest;
- create table qtest(q1 int8, q2 int8);
- insert into qtest values('123','456');
- insert into qtest values('123','4567890123456789');
- insert into qtest values('4567890123456789','123');
- insert into qtest values('4567890123456789','4567890123456789');
- insert into qtest values('4567890123456789','-4567890123456789');
- select * from qtest;
- select q1, -q1 as minus from qtest;
- select q1, q2, q1 + q2 as plus from qtest;
- select q1, q2, q1 - q2 as minus from qtest;
- select q1, q2, q1 * q2 as multiply from qtest
- where q1 < 1000 or (q2 > 0 and q2 < 1000);
- --select q1, q2, q1 * q2 as multiply qtest
- -- where q1 < '1000'::int8 or (q2 > '0'::int8 and q2 < '1000'::int8);
- select q1, q2, q1 / q2 as divide from qtest;
- select q1, float8(q1) from qtest;
- select q2, float8(q2) from qtest;
- select q1, int8(float8(q1)) from qtest;