TraceWaitTimes

Table of Contents

When true, the engine times its internal operations (lock waits, reads, index lookups and so on) and returns the totals with each query's results.

SET TraceWaitTimes true

The home page

Declares a variable for the rest of a script.

A breakdown of all of the statements and keywords supported by the query processor.

Removed: QueryThreadWeight is no longer a session variable.

Reads without waiting for other transactions' locks.

Settings that are scoped to the connected session.

Set changes a session variable.

Warns when a query references a field that a document does not have.

Warns when a null makes an expression null.