Unverified50% confidenceFactExact time
EXPLAIN is a relational database diagnostic command used to show the execution plan chosen by the query optimizer, including table access methods, join order, join algorithms, and estimated row counts and costs.
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50%
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Long-term
Relevance
10/31/2026
First Seen
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Related Claims
UnverifiedThe EXPLAIN command makes the database return the query's execution plan without actually executing the query, and can be used to check for performance hazards such as full table scans and Cartesian products.73% similarUnverifiedThe database Agent can automatically discover issues such as blocking, query performance degradation, index tuning needs, and resource pressure, and proactively report them to administrators.72% similarUnverifiedThe database field has long separated query planning from query execution, allowing the planner to complete optimal path calculation offline before execution.72% similarUnverifiedSQLite's EXPLAIN QUERY PLAN describes a query's execution strategy at a higher level, such as whether an index is used or a full table scan is performed.72% similarUnverifiedThe core of system design is judgment on trade-offs, such as choosing between a relational database and NoSQL, using a message queue versus direct calls, and deciding which layer to place caching on.72% similar
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