| Class | Description |
|---|---|
| ExceptOperation |
差集集合运算
|
| Fetch |
A fetch clause in the form FETCH (FIRST | NEXT) row_count (ROW | ROWS) ONLY
|
| IntersectOperation |
交集集合运算
|
| Join |
A join clause
|
| Limit |
A limit clause in the form [LIMIT {[offset,] row_count) | (row_count | ALL)
OFFSET offset}]
|
| MinusOperation |
差集集合运算操作
|
| Offset |
An offset clause in the form OFFSET offset or in the form OFFSET offset (ROW
| ROWS)
|
| OrderByElement |
OrderBy元素
|
| PlainSelect |
普通的select对象
|
| SetOperation |
Single Set-Operation (name).
|
| SetOperationList |
A database set operation.
|
| UnionOperation |
UNION并集运算操作
|
| Enum | Description |
|---|---|
| OrderByElement.NullOrdering | |
| SetOperationList.SetOperationType |
list of set operations.
|
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