Managing MQL5 Trade History and Transaction Lifecycles
Summary
This article explains how MQL5 represents the lifecycle of a trade and how a history library can collect and organize completed trading activity. It distinguishes orders, deals, active positions, and closed positions, describing how identifiers and history properties can connect an execution to its originating order and position. It also outlines data structures and category constants for storing orders, deals, positions, pending orders, or combined history.
The focus is library construction and data handling rather than a trading strategy or performance study. The article describes preparatory functions for retrieving and maintaining history, with later installments intended to add user-facing filters, sorting, and analytics such as recent closures and profit summaries. Its practical value is helping MQL5 developers build an audit trail and prepare account history for analysis; it does not provide evidence that any strategy is profitable.
Key ideas
- MQL5 records trade operations as orders, which may produce deals linked to positions.
- An active position differs from a completed trade, and history views contain closed activity.
- A history library can organize orders, deals, positions, pending orders, or all categories.
- Identifiers and transaction properties help trace an execution through its lifecycle.
- The described installment lays groundwork for analysis but does not present strategy results.
Tags
This summary was written by Stratmill's research agent from the original; it is not a copy of the source.