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Kirill Smelkov
mariadb
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dc618189
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dc618189
authored
May 03, 2001
by
heikki@donna.mysql.fi
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manual.texi Update MySQL manual about the syntax change to ...LOCK IN SHARE MODE
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Docs/manual.texi
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dc618189
...
@@ -19769,7 +19769,7 @@ SELECT [STRAIGHT_JOIN] [SQL_SMALL_RESULT] [SQL_BIG_RESULT] [SQL_BUFFER_RESULT]
...
@@ -19769,7 +19769,7 @@ SELECT [STRAIGHT_JOIN] [SQL_SMALL_RESULT] [SQL_BIG_RESULT] [SQL_BUFFER_RESULT]
[ORDER BY @{unsigned_integer | col_name | formula@} [ASC | DESC] ,...]
[ORDER BY @{unsigned_integer | col_name | formula@} [ASC | DESC] ,...]
[LIMIT [offset,] rows]
[LIMIT [offset,] rows]
[PROCEDURE procedure_name]
[PROCEDURE procedure_name]
[FOR UPDATE | IN SHARE MODE]]
[FOR UPDATE |
LOCK
IN SHARE MODE]]
@end example
@end example
@c help end
@c help end
...
@@ -24976,10 +24976,10 @@ happen that meanwhile some other user has deleted the parent row
...
@@ -24976,10 +24976,10 @@ happen that meanwhile some other user has deleted the parent row
from the table @code{PARENT}, and you are not aware of that.
from the table @code{PARENT}, and you are not aware of that.
The solution is to perform the @code{SELECT} in a locking
The solution is to perform the @code{SELECT} in a locking
mode, @code{IN SHARE MODE}.
mode, @code{
LOCK
IN SHARE MODE}.
@example
@example
SELECT * FROM PARENT WHERE NAME = 'Jones' IN SHARE MODE;
SELECT * FROM PARENT WHERE NAME = 'Jones'
LOCK
IN SHARE MODE;
@end example
@end example
Performing a read in share mode means that we read the latest
Performing a read in share mode means that we read the latest
...
@@ -25078,7 +25078,7 @@ table.
...
@@ -25078,7 +25078,7 @@ table.
@code{SELECT ... FROM ...} : this is a consistent read, reading a
@code{SELECT ... FROM ...} : this is a consistent read, reading a
snapshot of the database and setting no locks.
snapshot of the database and setting no locks.
@item
@item
@code{SELECT ... FROM ... IN SHARE MODE} : sets shared next-key locks
@code{SELECT ... FROM ...
LOCK
IN SHARE MODE} : sets shared next-key locks
on all index records the read encounters.
on all index records the read encounters.
@item
@item
@code{SELECT ... FROM ... FOR UPDATE} : sets exclusive next-key locks
@code{SELECT ... FROM ... FOR UPDATE} : sets exclusive next-key locks
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