Data Types Overview

MatrixOne Data types conforms with MySQL Data types definition.

Reference: https://dev.mysql.com/doc/refman/8.0/en/data-types.html

Integer Numbers

Real Numbers

String Types

Time and Date Types

Bool

Decimal Types(Beta)

Examples

//Create a table named "numtable" with 3 attributes of an "int", a "float" and a "double"
> create table numtable(id int,fl float, dl double);
//Insert a dataset of int, float and double into table "numtable"
> insert into numtable values(3,1.234567,1.2345678912345678912);
// Create a table named "numtable" with 2 attributes of an "int" and a "float" up to 5 digits in total, of which 3 digits may be after the decimal point.
> create table numtable(id int,fl float(5,3));
//Insert a dataset of int, float into table "numtable"
> insert into numtable values(3,99.123);
//Create a table named "numtable" with 2 attributes of an "int" and a "float" up to 23 digits in total.
> create table numtable(id int,fl float(23));
//Insert a dataset of int, float into table "numtable"
> insert into numtable values(1,1.2345678901234567890123456789);
//Create a table named "numtable" with 4 attributes of an "unsigned tinyint", an "unsigned smallint", an "unsigned int" and an "unsigned bigint"
> create table numtable(a tinyint unsigned, b smallint unsigned, c int unsigned, d bigint unsigned);
//Insert a dataset of unsigned (tinyint, smallint, int and bigint) into table "numtable"
> insert into numtable values(255,65535,4294967295,18446744073709551615);
//Create a table named "names" with 2 attributes of a "varchar" and a "char"
> create table names(name varchar(255),age char(255));
//Insert a data of "varchar" and "char" into table "names"
> insert into names(name, age) values('Abby', '24');
//Create a table named "calendar" with 2 attributes of a "date" and a "datetime"
> create table calendar(a date, b datetime);
//Insert a data of "date" and "datetime" into table "calendar"
> insert into calendar(a, b) values('20220202, '2022-02-02 00:10:30');
> insert into calendar(a, b) values('2022-02-02, '2022-02-02 00:10:30');
//Create a table named "decimalTest" with 2 attribute of a "decimal" and b "decimal"
> create table decimalTest(a decimal(6,3), b decimal(24,18));
> insert into decimalTest values(123.4567, 123456.1234567891411241355);
> select * from decimalTest;
+---------+---------------------------+
| a       | b                         |
+---------+---------------------------+
| 123.456 | 123456.123456789141124135 |
+---------+---------------------------+
//Create a table named "booltest" with 2 attribute of a "boolean" and b "bool"
> create table booltest (a boolean,b bool);
> insert into booltest values (0,1),(true,false),(true,1),(0,false),(NULL,NULL);
> select * from booltest;
+-------+-------+
| a     | b     |
+-------+-------+
| false | true  |
| true  | false |
| true  | true  |
| false | false |
| NULL  | NULL  |
+-------+-------+
5 rows in set (0.00 sec)
//Create a table named "timestamptest" with 1 attribute of a "timestamp"
> create table timestamptest (a timestamp(0) not null, primary key(a));
> insert into timestamptest values ('20200101000000'), ('2022-01-02'), ('2022-01-02 00:00:01'), ('2022-01-02 00:00:01.512345');
> select * from timestamptest;
+---------------------+
| a                   |
+---------------------+
| 2020-01-01 00:00:00 |
| 2022-01-02 00:00:00 |
| 2022-01-02 00:00:01 |
| 2022-01-02 00:00:02 |
+---------------------+