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query:
select | select | select | select | select |
select | select | select | select | select |
select | select | select | select | select |
dml | dml | transaction | alter ;
dml:
update | insert | delete ;
select:
SELECT select_item FROM join where order_by limit;
select_item:
* | X . _field ;
join:
_table AS X |
_table AS X LEFT JOIN _table AS Y ON ( X . _field = Y . _field ) ;
where:
|
WHERE X . _field < value |
WHERE X . _field > value |
WHERE X . _field = value ;
where_delete:
|
WHERE _field < value |
WHERE _field > value |
WHERE _field = value ;
order_by:
| ORDER BY X . _field ;
limit:
| LIMIT _digit ;
insert:
INSERT INTO _table ( _field , _field ) VALUES ( value , value ) ;
update:
UPDATE _table AS X SET _field = value where order_by limit ;
delete:
DELETE FROM _table where_delete LIMIT _digit ;
transaction:
START TRANSACTION | COMMIT | ROLLBACK | SAVEPOINT A | ROLLBACK TO SAVEPOINT A;
value:
' _letter ' | _digit | _date | _datetime | _time | _english ;
alter:
ALTER TABLE _table DROP KEY letter |
ALTER TABLE _table DROP KEY _field |
ALTER TABLE _table ADD KEY letter ( _field ) ;
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