The Earth Institute Columbia University

SQL Reference

This appendix describes the interaction of the CURRENT EXPLAIN MODE and CURRENT EXPLAIN SNAPSHOT special register values with each other and with the PREP and BIND commands. The CURRENT EXPLAIN MODE ...
GitHub

Visualize SQL explain plans with a sankey diagram.

Convert an explain plan from a database into a graph that lets you easily see which steps produce costs and where optimization might be useful. Detailed information about the processes can be ...
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Visualizing MySQL Performance: A Deep Dive Into EXPLAIN Output Formats

In database management, optimizing MySQL queries is not just a best practice—it’s necessary for achieving high performance and resource efficiency. The MySQL EXPLAIN statement is one of the most ...
The Earth Institute Columbia University

SQL Reference

The Explain tables must be created before Explain can be invoked. To create them, use the sample command line processor input script provided in the EXPLAIN.DDL file located in the 'misc' subdirectory ...
GitHub

set_explain_on_avoid_execute.sql

-- Disclaimer: This software is provided AS IS, without any kind of guarantee. Use at your own risk. -- Although the author is/was an IBM employee, this software was created outside his job ...