Database API

Store and retrieve the data of Armonia blockchain. It organizes data according to the following structure.

Module

Database C API

C API of database.

Description

  • code - the name of the account with write permission.
  • scope - the account where the data is stored.
  • table - name of the table being stored.
  • record - a row in the table.

Each transaction specifies a set of valid ranges that can be read and / or written. The running code determines what can be written. Therefore, the write operation does not allow you to specify / configure the code.

Attention

Attempting to read and / or write outside the valid range and / or part of the code will cause your transaction to fail.

Table type

Supported table type determined by its number and sizeļ¼š 1. dbi64

Database C++ provides a simple API for storing fixed size structure as database rows.