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Autoincrement is a function that operates with record numbers. It automatically generates a new record number increased by 1.

It can be used for various purposes. One of them, for example, is registering inquiries user queries for their further processing and statistical purposes.

Autoincrement settings Autoincrement settings are stored in two tables:

The

the Number (sys_number) table contains the Maximum digits, the Prefix,and the

Prefix

Start Value settings for the

table;The Autoincrement (sys_number_autoincrement)

table

stores the autoincrement setting related to the table

.

Tip

For working correctly, records in both tables must be created. If the record in the Number (sys_number) table exists and the record in the Autoincrement (sys_number_autoincrement) table is not, then it will be created automatically, and the numbering will start with 1.

In order to create an autoincrement rule, the following criteria must be met: the

  • The object for which you are configuring an autoincrement
for
  • must have a field that should be incremented.
It must have a String type, and generally, these fields are named as "Number"
  • The field should be of String type. These fields are usually named “Number”.

If your table does not have this field, please create it: please refer . Refer to the Creating a Column Create Columns article for more information.

1. Navigate to System Definition → Numbers;
2. Click New, fill in the form and then click Save.

Autoincrement Record Number form fields

Field

Mandatory

Description

Maximum digitsYDefine the max number The max amount of digits after the prefix.
AutoincrementEnter the start point for the numbering. An incremental step is always 1, so further entries in this table will have the number increased by 1.
PrefixYSpecify at PrefixAt least three Latin letters that will be the beginning of every record ID in this table.
Start ValueYSpecify the initial value of the sequence. The default value is '1'. 

Example

Info

You just created the

rule

sequence, and you filled in the fields:

Field

Type

Value

Maximum digits

-

Small Integer

6

Prefix
- ABCAutoincrement - 123

String

ABC

Start Value

Integer

22

So the first record ID will be

ABC000124

ABC000022, and the further ones will be

ABC000125

ABC000023,

ABC000126

ABC000024, and so on.

If the value of the Start Value changes, and it is greater than the current value of the sequence, the value will be saved, and the sequence will be set to a new starting value.

Note
  • If you create a record in the Record Number (sys_number)table, a sequence is created.
  • If you delete a record in the Record Number (sys_number)table, the sequence is deleted.