From server to client in response to command, if no error and no result set.
The message field is optional.
Alternative terms: OK Packet is also known as "okay packet" or "ok packet" or "OK-Packet".field_count is also known as "number of rows" or "marker for ok packet". message is also known as"Messagetext". OK Packets (and result set packets) are also called "Result packets".
In the example, the optional message field is missing (the client can determine this by examining the packet length). This is a packet that the server returns after a successful INSERT of a single row that contains no auto_increment columns.
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A Guided Tour Of The Mysql Source Code
Important Algorithms And Structures
How Mysql Performs Different Selects
How Mysql Transforms Subqueries
Mysql Client/server Protocol
Prepared Statements And Stored Routines
Myisam Storage Engine
Innodb Storage Engine
Writing A Custom Storage Engine
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