float4.sql
上传用户:blenddy
上传日期:2007-01-07
资源大小:6495k
文件大小:2k
- -- *************testing built-in type float4 ****************
- CREATE TABLE FLOAT4_TBL (f1 float4);
- INSERT INTO FLOAT4_TBL(f1) VALUES ('0.0');
- INSERT INTO FLOAT4_TBL(f1) VALUES ('1004.30');
- INSERT INTO FLOAT4_TBL(f1) VALUES ('-34.84');
- INSERT INTO FLOAT4_TBL(f1) VALUES ('1.2345678901234e+20');
- INSERT INTO FLOAT4_TBL(f1) VALUES ('1.2345678901234e-20');
- -- test for over and under flow
- INSERT INTO FLOAT4_TBL(f1) VALUES ('10e40');
- INSERT INTO FLOAT4_TBL(f1) VALUES ('-10e40');
- INSERT INTO FLOAT4_TBL(f1) VALUES ('10e-40');
- INSERT INTO FLOAT4_TBL(f1) VALUES ('-10e-40');
- SELECT '' AS five, FLOAT4_TBL.*;
- SELECT '' AS four, f.* FROM FLOAT4_TBL f WHERE f.f1 <> '1004.3';
- SELECT '' AS one, f.* FROM FLOAT4_TBL f WHERE f.f1 = '1004.3';
- SELECT '' AS three, f.* FROM FLOAT4_TBL f WHERE '1004.3' > f.f1;
- SELECT '' AS three, f.* FROM FLOAT4_TBL f WHERE f.f1 < '1004.3';
- SELECT '' AS four, f.* FROM FLOAT4_TBL f WHERE '1004.3' >= f.f1;
- SELECT '' AS four, f.* FROM FLOAT4_TBL f WHERE f.f1 <= '1004.3';
- SELECT '' AS three, f.f1, f.f1 * '-10' AS x FROM FLOAT4_TBL f
- WHERE f.f1 > '0.0';
- SELECT '' AS three, f.f1, f.f1 + '-10' AS x FROM FLOAT4_TBL f
- WHERE f.f1 > '0.0';
- SELECT '' AS three, f.f1, f.f1 / '-10' AS x FROM FLOAT4_TBL f
- WHERE f.f1 > '0.0';
- SELECT '' AS three, f.f1, f.f1 - '-10' AS x FROM FLOAT4_TBL f
- WHERE f.f1 > '0.0';
- -- test divide by zero
- SELECT '' AS bad, f.f1 / '0.0' from FLOAT4_TBL f;
- SELECT '' AS five, FLOAT4_TBL.*;
- -- test the unary float4abs operator
- SELECT '' AS five, f.f1, @f.f1 AS abs_f1 FROM FLOAT4_TBL f;
- UPDATE FLOAT4_TBL
- SET f1 = FLOAT4_TBL.f1 * '-1'
- WHERE FLOAT4_TBL.f1 > '0.0';
- SELECT '' AS five, FLOAT4_TBL.*;