MySQL 8.0 Reference Manual Including MySQL NDB Cluster 8.0
LEAVE label
This statement is used to exit the flow control construct that
has the given label. If the label is for the outermost stored
program block, LEAVE
exits the
program.
LEAVE
can be used within
BEGIN ...
END
or loop constructs
(LOOP
,
REPEAT
,
WHILE
).
For an example, see Section 13.6.5.5, “LOOP Statement”.