OrientDB Data Types - OrientDB

What is OrientDB Data Types?

OrientDB supports a number of data types natively. Following is the complete table on the same.

Sr. No.
Type
Description
1
Boolean
Handles only the values True or False.
Java types: java.lang.Boolean
Min: 0
Max: 1
2
Integer
32-bit signed integers.
Java types: java.lang.Interger
Min: -2,147,483,648
Max: +2,147,483,647
3
Short
Small 16-bit signed integers.
Java types: java.lang.short
Min: -32,768
Max: 32,767
4
Long
Big 64-bit signed integers.
Java types: java.lang.Long
Min: -263
Max: +263-1
5
Float
Decimal numbers.
Java types: java.lang.Float
Min: 2-149
Max: (2-2-23)*2,127
6
Double
Decimal numbers with high precision.
Java types: Java.lang.Double.
Min: 2-1074
Max: (2-2-52)*21023
7
Date-time
Any date with the precision up to milliseconds.
Java types: java.util.Date
8
String
Any string as alphanumeric sequence of chars.
Java types: java.lang.String
9
Binary
Can contain any value as byte array.
Java types: byte[ ]
Min: 0
Max: 2,147,483,647
10
Embedded
The record is contained inside the owner. The contained record has no RecordId.
Java types: ORecord
11
Embedded list
The records are contained inside the owner. The contained records have no RecordIds and are reachable only by navigating the owner record.
Java types: List<objects>
Min: 0
Max: 41,000,000 items
12
Embedded set
The records are contained inside the owner. The contained records have no RecordId and are reachable only by navigating the owner record.
Java types: set<objects>
Min: 0
Max: 41,000,000 items
13
Embedded map
The records are contained inside the owner as values of the entries, while the keys can only be strings. The contained records have no RecordId and are reachable only by navigating the owner Record.
Java types: Map<String, ORecord>
Min: 0
Max: 41,000,000 items
14
Link
Link to another Record. It's a common one-to-one relationship
Java Types: ORID, <? extends ORecord>
Min: 1
Max: 32767:2^63-1
15
Link list
Links to other Records. It's a common one-to-many relationship where only the RecordIds are stored.
Java types: List<? Extends ORecord>
Min: 0
Max: 41,000,000 items
16
Link set
Links to other records. It's a common one-to-many relationship.
Java types: Set<? extends ORecord>
Min: 0
Max: 41,000,000 items
17
Link map
Links to other records as value of the entries, while keys can only be strings. It's a common one-to-many relationship. Only the RecordIds are stored.
Java types: Map<String, ? extends Record>
Min: 0
Max: 41,000,000 items
18
Byte
Single byte. Useful to store small 8-bit signed integers.
Java types: java.lang.Byte
Min: -128
Max: +127
19
Transient
Any value not stored on database.
20
Date
Any date as year, month and day.
Java Types: java.util.Date
21
Custom
Used to store a custom type providing the Marshall and Unmarshall methods.
Java types: OSerializableStream
Min: 0
Max: x
22
Decimal
Decimal numbers without rounding.
Java types: java.math.BigDecimal
23
LinkBag
List of RecordIds as specific RidBag.
Java types: ORidBag
24
Any
Not determinate type, used to specify collections of mixed type, and null.

In the subsequent chapters, how to use these data types in OrientDB is examined.

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