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drop table if exists t1,t2;
SELECT 10,10.0,10.,.1e+2,100.0e-1;
10 10.0 10. .1e+2 100.0e-1
10 10.0 10 10 10
SELECT 6e-05, -6e-05, --6e-05, -6e-05+1.000000;
6e-05 -6e-05 --6e-05 -6e-05+1.000000
6e-05 -6e-05 6e-05 0.99994
SELECT 1e1,1.e1,1.0e1,1e+1,1.e+1,1.0e+1,1e-1,1.e-1,1.0e-1;
1e1 1.e1 1.0e1 1e+1 1.e+1 1.0e+1 1e-1 1.e-1 1.0e-1
10 10 10 10 10 10 0.1 0.1 0.1
SELECT 0.001e+1,0.001e-1, -0.001e+01,-0.001e-01;
0.001e+1 0.001e-1 -0.001e+01 -0.001e-01
0.01 0.0001 -0.01 -0.0001
SELECT 123.23E+02,-123.23E-02,"123.23E+02"+0.0,"-123.23E-02"+0.0;
123.23E+02 -123.23E-02 "123.23E+02"+0.0 "-123.23E-02"+0.0
12323 -1.2323 12323 -1.2323
SELECT 2147483647E+02,21474836.47E+06;
2147483647E+02 21474836.47E+06
214748364700 21474836470000
create table t1 (f1 float(24),f2 float(52));
show full columns from t1;
Field Type Collation Null Key Default Extra Privileges Comment
f1 float NULL YES NULL #
f2 double NULL YES NULL #
insert into t1 values(10,10),(1e+5,1e+5),(1234567890,1234567890),(1e+10,1e+10),(1e+15,1e+15),(1e+20,1e+20),(1e+50,1e+50),(1e+150,1e+150);
Warnings:
Warning 1264 Out of range value for column 'f1' at row 7
Warning 1264 Out of range value for column 'f1' at row 8
insert into t1 values(-10,-10),(1e-5,1e-5),(1e-10,1e-10),(1e-15,1e-15),(1e-20,1e-20),(1e-50,1e-50),(1e-150,1e-150);
select * from t1;
f1 f2
10 10
100000 100000
1.23457e+09 1234567890
1e+10 10000000000
1e+15 1e+15
1e+20 1e+20
3.40282e+38 1e+50
3.40282e+38 1e+150
-10 -10
1e-05 1e-05
1e-10 1e-10
1e-15 1e-15
1e-20 1e-20
0 1e-50
0 1e-150
drop table t1;
create table t1 (datum double);
insert into t1 values (0.5),(1.0),(1.5),(2.0),(2.5);
select * from t1;
datum
0.5
1
1.5
2
2.5
select * from t1 where datum < 1.5;
datum
0.5
1
select * from t1 where datum > 1.5;
datum
2
2.5
select * from t1 where datum = 1.5;
datum
1.5
drop table t1;
create table t1 (a decimal(7,3) not null, key (a));
insert into t1 values ("0"),("-0.00"),("-0.01"),("-0.002"),("1");
select a from t1 order by a;
a
-0.010
-0.002
0.000
0.000
1.000
select min(a) from t1;
min(a)
-0.010
drop table t1;
create table t1 (c1 double, c2 varchar(20));
insert t1 values (121,"16");
select c1 + c1 * (c2 / 100) as col from t1;
col
140.36
create table t2 select c1 + c1 * (c2 / 100) as col1, round(c1, 5) as col2, round(c1, 35) as col3, sqrt(c1*1e-15) col4 from t1;
select * from t2;
col1 col2 col3 col4
140.36 121.00000 121 3.47850542618522e-07
show create table t2;
Table Create Table
t2 CREATE TABLE `t2` (
`col1` double DEFAULT NULL,
`col2` double(22,5) DEFAULT NULL,
`col3` double DEFAULT NULL,
`col4` double DEFAULT NULL
) ENGINE=MyISAM DEFAULT CHARSET=latin1
drop table t1,t2;
create table t1 (a float);
insert into t1 values (1);
select max(a),min(a),avg(a) from t1;
max(a) min(a) avg(a)
1 1 1
drop table t1;
create table t1 (f float, f2 float(24), f3 float(6,2), d double, d2 float(53), d3 double(10,3), de decimal, de2 decimal(6), de3 decimal(5,2), n numeric, n2 numeric(8), n3 numeric(7,6));
show full columns from t1;
Field Type Collation Null Key Default Extra Privileges Comment
f float NULL YES NULL #
f2 float NULL YES NULL #
f3 float(6,2) NULL YES NULL #
d double NULL YES NULL #
d2 double NULL YES NULL #
d3 double(10,3) NULL YES NULL #
de decimal(10,0) NULL YES NULL #
de2 decimal(6,0) NULL YES NULL #
de3 decimal(5,2) NULL YES NULL #
n decimal(10,0) NULL YES NULL #
n2 decimal(8,0) NULL YES NULL #
n3 decimal(7,6) NULL YES NULL #
drop table t1;
create table t1 (a decimal(7,3) not null, key (a));
insert into t1 values ("0"),("-0.00"),("-0.01"),("-0.002"),("1");
select a from t1 order by a;
a
-0.010
-0.002
0.000
0.000
1.000
select min(a) from t1;
min(a)
-0.010
drop table t1;
create table t1 (a float(200,100), b double(200,100));
ERROR 42000: Too big scale 100 specified for column 'a'. Maximum is 30.
create table t1 (c20 char);
insert into t1 values (5000.0);
Warnings:
Warning 1265 Data truncated for column 'c20' at row 1
insert into t1 values (0.5e4);
Warnings:
Warning 1265 Data truncated for column 'c20' at row 1
drop table t1;
create table t1 (f float(54));
ERROR 42000: Incorrect column specifier for column 'f'
drop table if exists t1;
create table t1 (d1 double, d2 double unsigned);
insert into t1 set d1 = -1.0;
update t1 set d2 = d1;
Warnings:
Warning 1264 Out of range value for column 'd2' at row 1
select * from t1;
d1 d2
-1 0
drop table t1;
create table t1 (f float(4,3));
insert into t1 values (-11.0),(-11),("-11"),(11.0),(11),("11");
Warnings:
Warning 1264 Out of range value for column 'f' at row 1
Warning 1264 Out of range value for column 'f' at row 2
Warning 1264 Out of range value for column 'f' at row 3
Warning 1264 Out of range value for column 'f' at row 4
Warning 1264 Out of range value for column 'f' at row 5
Warning 1264 Out of range value for column 'f' at row 6
select * from t1;
f
-9.999
-9.999
-9.999
9.999
9.999
9.999
drop table if exists t1;
create table t1 (f double(4,3));
insert into t1 values (-11.0),(-11),("-11"),(11.0),(11),("11");
Warnings:
Warning 1264 Out of range value for column 'f' at row 1
Warning 1264 Out of range value for column 'f' at row 2
Warning 1264 Out of range value for column 'f' at row 3
Warning 1264 Out of range value for column 'f' at row 4
Warning 1264 Out of range value for column 'f' at row 5
Warning 1264 Out of range value for column 'f' at row 6
select * from t1;
f
-9.999
-9.999
-9.999
9.999
9.999
9.999
drop table if exists t1;
create table t1 (c char(20));
insert into t1 values (5e-28);
select * from t1;
c
5e-28
drop table t1;
create table t1 (c char(6));
insert into t1 values (2e5),(2e6),(2e-4),(2e-5);
select * from t1;
c
200000
2e+06
0.0002
2e-05
drop table t1;
CREATE TABLE t1 (
reckey int unsigned NOT NULL,
recdesc varchar(50) NOT NULL,
PRIMARY KEY (reckey)
) ENGINE=MyISAM DEFAULT CHARSET=latin1;
INSERT INTO t1 VALUES (108, 'Has 108 as key');
INSERT INTO t1 VALUES (109, 'Has 109 as key');
select * from t1 where reckey=108;
reckey recdesc
108 Has 108 as key
select * from t1 where reckey=1.08E2;
reckey recdesc
108 Has 108 as key
select * from t1 where reckey=109;
reckey recdesc
109 Has 109 as key
select * from t1 where reckey=1.09E2;
reckey recdesc
109 Has 109 as key
drop table t1;
create table t1 (d double(10,1));
create table t2 (d double(10,9));
insert into t1 values ("100000000.0");
insert into t2 values ("1.23456780");
create table t3 select * from t2 union select * from t1;
select * from t3;
d
1.2345678
100000000
show create table t3;
Table Create Table
t3 CREATE TABLE `t3` (
`d` double DEFAULT NULL
) ENGINE=MyISAM DEFAULT CHARSET=latin1
drop table t1, t2, t3;
create table t1 select 105213674794682365.00 + 0.0 x;
show warnings;
Level Code Message
desc t1;
Field Type Null Key Default Extra
x decimal(21,2) NO 0.00
drop table t1;
create table t1 select 0.0 x;
desc t1;
Field Type Null Key Default Extra
x decimal(2,1) NO 0.0
create table t2 select 105213674794682365.00 y;
desc t2;
Field Type Null Key Default Extra
y decimal(20,2) NO 0.00
create table t3 select x+y a from t1,t2;
show warnings;
Level Code Message
desc t3;
Field Type Null Key Default Extra
a decimal(21,2) NO 0.00
drop table t1,t2,t3;
select 1e-308, 1.00000001e-300, 100000000e-300;
1e-308 1.00000001e-300 100000000e-300
1e-308 1.00000001e-300 1e-292
select 10e307;
10e307
1e+308
create table t1(a int, b double(8, 2));
insert into t1 values
(1, 28.50), (1, 121.85), (1, 157.23), (1, 1351.00), (1, -1965.35), (1, 81.75),
(1, 217.08), (1, 7.94), (4, 96.07), (4, 6404.65), (4, -6500.72), (2, 100.00),
(5, 5.00), (5, -2104.80), (5, 2033.80), (5, 0.07), (5, 65.93),
(3, -4986.24), (3, 5.00), (3, 4857.34), (3, 123.74), (3, 0.16),
(6, -1695.31), (6, 1003.77), (6, 499.72), (6, 191.82);
explain select sum(b) s from t1 group by a;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 ALL NULL NULL NULL NULL 26 Using temporary; Using filesort
select sum(b) s from t1 group by a;
s
0.00
100.00
0.00
-0.00
-0.00
0.00
select sum(b) s from t1 group by a having s <> 0;
s
100.00
select sum(b) s from t1 group by a having s <> 0 order by s;
s
100.00
select sum(b) s from t1 group by a having s <=> 0;
s
0.00
0.00
-0.00
-0.00
0.00
select sum(b) s from t1 group by a having s <=> 0 order by s;
s
-0.00
-0.00
0.00
0.00
0.00
alter table t1 add key (a, b);
explain select sum(b) s from t1 group by a;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 index NULL a 14 NULL 26 Using index
select sum(b) s from t1 group by a;
s
0.00
100.00
0.00
-0.00
0.00
0.00
select sum(b) s from t1 group by a having s <> 0;
s
100.00
select sum(b) s from t1 group by a having s <> 0 order by s;
s
100.00
select sum(b) s from t1 group by a having s <=> 0;
s
0.00
0.00
-0.00
0.00
0.00
select sum(b) s from t1 group by a having s <=> 0 order by s;
s
-0.00
0.00
0.00
0.00
0.00
drop table t1;
End of 4.1 tests
create table t1 (s1 float(0,2));
ERROR 42000: For float(M,D), double(M,D) or decimal(M,D), M must be >= D (column 's1').
create table t1 (s1 float(1,2));
ERROR 42000: For float(M,D), double(M,D) or decimal(M,D), M must be >= D (column 's1').
CREATE TABLE t1 (
f1 real zerofill,
f2 double zerofill,
f3 float zerofill);
INSERT INTO t1 VALUES ( 0.314152e+1, 0.314152e+1, 0.314152e+1);
PREPARE stmt1 FROM 'select f1, f2, f3 FROM t1';
select f1, f2, f3 FROM t1;
f1 f2 f3
0000000000000003.14152 0000000000000003.14152 000003.14152
select f1, f2, f3 FROM t1;
f1 f2 f3
0000000000000003.14152 0000000000000003.14152 000003.14152
EXECUTE stmt1;
f1 f2 f3
0000000000000003.14152 0000000000000003.14152 000003.14152
DROP TABLE t1;
create table t1 (f1 double(200, 0));
insert into t1 values (1e199), (-1e199);
insert into t1 values (1e200), (-1e200);
insert into t1 values (2e200), (-2e200);
Warnings:
Warning 1264 Out of range value for column 'f1' at row 1
Warning 1264 Out of range value for column 'f1' at row 2
select f1 + 0e0 from t1;
f1 + 0e0
1e+199
-1e+199
1e+200
-1e+200
1e+200
-1e+200
drop table t1;
create table t1 (f1 float(30, 0));
insert into t1 values (1e29), (-1e29);
insert into t1 values (1e30), (-1e30);
insert into t1 values (2e30), (-2e30);
Warnings:
Warning 1264 Out of range value for column 'f1' at row 1
Warning 1264 Out of range value for column 'f1' at row 2
select f1 + 0e0 from t1;
f1 + 0e0
1.00000001504747e+29
-1.00000001504747e+29
1.00000001504747e+30
-1.00000001504747e+30
1.00000001504747e+30
-1.00000001504747e+30
drop table t1;
create table t1(d double, u bigint unsigned);
insert into t1(d) values (9.22337203685479e18),
(1.84e19);
update t1 set u = d;
select u from t1;
u
9223372036854790144
18400000000000000000
drop table t1;
CREATE TABLE t1 (f1 DOUBLE);
INSERT INTO t1 VALUES(-1.79769313486231e+308);
SELECT f1 FROM t1;
f1
-1.79769313486231e+308
DROP TABLE t1;
End of 5.0 tests
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