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https://dev.mysql.com/doc/refman/8.0/en/nested-loop-joins.html
At that point, no speed is gained by making it larger. MySQL executes joins between tables using a nested-loop algorithm or variations on it. Nested-Loop Join Algorithm Block Nested-Loop Join Algorithm Nested-Loop Join Algorithm A simple ...
https://dev.mysql.com/doc/refman/8.0/en/no-matching-rows.html
This problem is common in most computer languages because not all floating-point values can be stored with exact precision. If you have a complicated query that uses many tables but that returns no rows, you should use the following procedure to ...
https://dev.mysql.com/doc/refman/8.0/en/out-of-range-and-overflow.html
If no restrictive modes are enabled, MySQL clips the value to the appropriate endpoint of the column data type range and stores the resulting value instead. When an out-of-range value is assigned to an integer column, MySQL stores the value ...In ...
https://dev.mysql.com/doc/refman/8.0/en/performance-schema.html
The PERFORMANCE_SCHEMA storage engine collects event data using “instrumentation points” in server source code. The MySQL Performance Schema is a feature for monitoring MySQL Server execution at a low level. The Performance Schema has these ...
https://dev.mysql.com/doc/refman/8.0/en/precision-math.html
These features have several implications for numeric operations and provide a high degree of compliance with standard SQL: Precise calculations: For exact-value numbers, calculations do not introduce floating-point errors. MySQL provides support ...
https://dev.mysql.com/doc/refman/8.0/en/recovery-from-backups.html
The full backup file is just a set of SQL statements, so restoring it is very easy: $> mysql < backup_sunday_1_PM.sql At this point, the data is restored to its state as of Sunday 1 p.m.. | mysql For more information about using mysqlbinlog to ...
https://dev.mysql.com/doc/refman/8.0/en/replication-administration-pausing.html
Stopping only the receiver thread enables the events in the relay log to be executed by the applier thread up to the point where the relay log ends. This can be useful when you want to pause execution to catch up with events already received from ...
https://dev.mysql.com/doc/refman/8.0/en/replication-administration-skip.html
For instructions to do this, see Section 9.5, “Point-in-Time (Incremental) Recovery”. Before skipping the transaction and restarting the replica, check these points: Is the transaction that stopped replication from an unknown or untrusted ... If ...
https://dev.mysql.com/doc/refman/8.0/en/replication-mode-change-online-disable-gtids.html
The only thing that differs is the point at which you wait for logged transactions to replicate. If you use binary logs for anything other than replication—for example, to perform point-in-time backup or restore—wait until you no longer need any ... This section describes how to disable GTID transactions on servers that are already ...
https://dev.mysql.com/doc/refman/8.0/en/replication-mode-change-online-enable-gtids.html
If you use binary logs for anything other than replication, for example point in time backup and restore, wait until you do not need the old binary logs having transactions without GTIDs. This section describes how to enable GTID transactions, and ...