mysql - Confusion regarding INNODB locking -

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When I run 'Select from the table' on an INNODB table, does the table lock become insensitive? Does this mean that during the time, MySQL takes the result set back, can not I issue an update statement in the table?

The entire table will be locked in shared mode as I have understood, until the result is not returned to the set, the update command can be executed only after that.

INADB uses a feature.

Locking in shared mode is not necessary, because MVCC will keep the version of the previous version of your SELECT statement if necessary Be able to

Then the answer is 'no', while updating a SELECT statement, there will be no need to lock a row while updating. This is, as long as this particular SELECT statement like SELECT .. FOR UPDATE is.

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