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query:
lock ; START TRANSACTION ; dml ; dml ; SAVEPOINT A ; dml ; dml ; ROLLBACK TO SAVEPOINT A ; dml ; dml ; commit_rollback ; unlock ;
lock:
SELECT GET_LOCK('LOCK', 65535) ;
unlock:
SELECT RELEASE_LOCK('LOCK') ;
commit_rollback:
COMMIT | ROLLBACK ;
dml:
insert | update ;
#| delete ;
where:
WHERE _field sign value ;
# WHERE _field BETWEEN value AND value ;
sign:
= | > | < | = | >= | <> | <= | != ;
insert:
INSERT INTO _table ( _field , _field ) VALUES ( value , value ) ;
update:
UPDATE _table AS X SET _field = value , _field = value , _field = value where ;
delete:
DELETE FROM _table WHERE _field = value ;
value:
_tinyint_unsigned ;
_field:
`int_key` | `int_nokey` ;
# | _english | _digit | _date | _datetime | _time ;
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