| Frame Attribute | -Attribute Value | -Value Description | -
|---|---|---|
| Type | -ROWS | -Divide the frame by row number | -
| GROUPS | -Divide the frame by peers, i.e., rows with the same value are regarded as equivalent. All rows in peers are grouped into one group called a peer group | -|
| RANGE | -Divide the frame by value | -|
| Start and End Position | -UNBOUNDED PRECEDING | -The first row of the entire partition | -
| offset PRECEDING | -Represents the row with an "offset" distance from the current row in the preceding direction | -|
| CURRENT ROW | -The current row | -|
| offset FOLLOWING | -Represents the row with an "offset" distance from the current row in the following direction | -|
| UNBOUNDED FOLLOWING | -The last row of the entire partition | -
| Window Function Category | -Window Function Name | -Function Definition | -Supports FRAME Clause | -
|---|---|---|---|
| Aggregate Function | -All built-in aggregate functions | -Aggregate a set of values to get a single aggregated result. | -Yes | -
| Value Function | -first_value | -Return the first value of the frame; if IGNORE NULLS is specified, skip leading NULLs | -Yes | -
| last_value | -Return the last value of the frame; if IGNORE NULLS is specified, skip trailing NULLs | -Yes | -|
| nth_value | -Return the nth element of the frame (note that n starts from 1); if IGNORE NULLS is specified, skip NULLs | -Yes | -|
| lead | -Return the element offset rows after the current row (if IGNORE NULLS is specified, NULLs are not considered); if no such element exists (exceeding the partition range), return default | -No | -|
| lag | -Return the element offset rows before the current row (if IGNORE NULLS is specified, NULLs are not considered); if no such element exists (exceeding the partition range), return default | -No | -|
| Rank Function | -rank | -Return the sequence number of the current row in the entire partition; rows with the same value have the same sequence number, and there may be gaps between sequence numbers | -No | -
| dense_rank | -Return the sequence number of the current row in the entire partition; rows with the same value have the same sequence number, and there are no gaps between sequence numbers | -No | -|
| row_number | -Return the row number of the current row in the entire partition; note that the row number starts from 1 | -No | -|
| percent_rank | -Return the sequence number of the current row's value in the entire partition as a percentage; i.e., (rank() - 1) / (n - 1), where n is the number of rows in the entire partition | -No | -|
| cume_dist | -Return the sequence number of the current row's value in the entire partition as a percentage; i.e., (number of rows less than or equal to it) / n | -No | -|
| ntile | -Specify n to number each row from 1 to n. | -No | -
| Frame Attribute | +Attribute Value | +Value Description | +
|---|---|---|
| Type | +ROWS | +Divide the frame by row number | +
| GROUPS | +Divide the frame by peers, i.e., rows with the same value are regarded as equivalent. All rows in peers are grouped into one group called a peer group | +|
| RANGE | +Divide the frame by value | +|
| Start and End Position | +UNBOUNDED PRECEDING | +The first row of the entire partition | +
| offset PRECEDING | +Represents the row with an "offset" distance from the current row in the preceding direction | +|
| CURRENT ROW | +The current row | +|
| offset FOLLOWING | +Represents the row with an "offset" distance from the current row in the following direction | +|
| UNBOUNDED FOLLOWING | +The last row of the entire partition | +
| Window Function Category | +Window Function Name | +Function Definition | +Supports FRAME Clause | +
|---|---|---|---|
| Aggregate Function | +All built-in aggregate functions | +Aggregate a set of values to get a single aggregated result. | +Yes | +
| Value Function | +first_value | +Return the first value of the frame; if IGNORE NULLS is specified, skip leading NULLs | +Yes | +
| last_value | +Return the last value of the frame; if IGNORE NULLS is specified, skip trailing NULLs | +Yes | +|
| nth_value | +Return the nth element of the frame (note that n starts from 1); if IGNORE NULLS is specified, skip NULLs | +Yes | +|
| lead | +Return the element offset rows after the current row (if IGNORE NULLS is specified, NULLs are not considered); if no such element exists (exceeding the partition range), return default | +No | +|
| lag | +Return the element offset rows before the current row (if IGNORE NULLS is specified, NULLs are not considered); if no such element exists (exceeding the partition range), return default | +No | +|
| Rank Function | +rank | +Return the sequence number of the current row in the entire partition; rows with the same value have the same sequence number, and there may be gaps between sequence numbers | +No | +
| dense_rank | +Return the sequence number of the current row in the entire partition; rows with the same value have the same sequence number, and there are no gaps between sequence numbers | +No | +|
| row_number | +Return the row number of the current row in the entire partition; note that the row number starts from 1 | +No | +|
| percent_rank | +Return the sequence number of the current row's value in the entire partition as a percentage; i.e., (rank() - 1) / (n - 1), where n is the number of rows in the entire partition | +No | +|
| cume_dist | +Return the sequence number of the current row's value in the entire partition as a percentage; i.e., (number of rows less than or equal to it) / n | +No | +|
| ntile | +Specify n to number each row from 1 to n. | +No | +
| Frame Attribute | -Attribute Value | -Value Description | -
|---|---|---|
| Type | -ROWS | -Divide the frame by row number | -
| GROUPS | -Divide the frame by peers, i.e., rows with the same value are regarded as equivalent. All rows in peers are grouped into one group called a peer group | -|
| RANGE | -Divide the frame by value | -|
| Start and End Position | -UNBOUNDED PRECEDING | -The first row of the entire partition | -
| offset PRECEDING | -Represents the row with an "offset" distance from the current row in the preceding direction | -|
| CURRENT ROW | -The current row | -|
| offset FOLLOWING | -Represents the row with an "offset" distance from the current row in the following direction | -|
| UNBOUNDED FOLLOWING | -The last row of the entire partition | -
| Window Function Category | -Window Function Name | -Function Definition | -Supports FRAME Clause | -
|---|---|---|---|
| Aggregate Function | -All built-in aggregate functions | -Aggregate a set of values to get a single aggregated result. | -Yes | -
| Value Function | -first_value | -Return the first value of the frame; if IGNORE NULLS is specified, skip leading NULLs | -Yes | -
| last_value | -Return the last value of the frame; if IGNORE NULLS is specified, skip trailing NULLs | -Yes | -|
| nth_value | -Return the nth element of the frame (note that n starts from 1); if IGNORE NULLS is specified, skip NULLs | -Yes | -|
| lead | -Return the element offset rows after the current row (if IGNORE NULLS is specified, NULLs are not considered); if no such element exists (exceeding the partition range), return default | -No | -|
| lag | -Return the element offset rows before the current row (if IGNORE NULLS is specified, NULLs are not considered); if no such element exists (exceeding the partition range), return default | -No | -|
| Rank Function | -rank | -Return the sequence number of the current row in the entire partition; rows with the same value have the same sequence number, and there may be gaps between sequence numbers | -No | -
| dense_rank | -Return the sequence number of the current row in the entire partition; rows with the same value have the same sequence number, and there are no gaps between sequence numbers | -No | -|
| row_number | -Return the row number of the current row in the entire partition; note that the row number starts from 1 | -No | -|
| percent_rank | -Return the sequence number of the current row's value in the entire partition as a percentage; i.e., (rank() - 1) / (n - 1), where n is the number of rows in the entire partition | -No | -|
| cume_dist | -Return the sequence number of the current row's value in the entire partition as a percentage; i.e., (number of rows less than or equal to it) / n | -No | -|
| ntile | -Specify n to number each row from 1 to n. | -No | -
| Frame Attribute | +Attribute Value | +Value Description | +
|---|---|---|
| Type | +ROWS | +Divide the frame by row number | +
| GROUPS | +Divide the frame by peers, i.e., rows with the same value are regarded as equivalent. All rows in peers are grouped into one group called a peer group | +|
| RANGE | +Divide the frame by value | +|
| Start and End Position | +UNBOUNDED PRECEDING | +The first row of the entire partition | +
| offset PRECEDING | +Represents the row with an "offset" distance from the current row in the preceding direction | +|
| CURRENT ROW | +The current row | +|
| offset FOLLOWING | +Represents the row with an "offset" distance from the current row in the following direction | +|
| UNBOUNDED FOLLOWING | +The last row of the entire partition | +
| Window Function Category | +Window Function Name | +Function Definition | +Supports FRAME Clause | +
|---|---|---|---|
| Aggregate Function | +All built-in aggregate functions | +Aggregate a set of values to get a single aggregated result. | +Yes | +
| Value Function | +first_value | +Return the first value of the frame; if IGNORE NULLS is specified, skip leading NULLs | +Yes | +
| last_value | +Return the last value of the frame; if IGNORE NULLS is specified, skip trailing NULLs | +Yes | +|
| nth_value | +Return the nth element of the frame (note that n starts from 1); if IGNORE NULLS is specified, skip NULLs | +Yes | +|
| lead | +Return the element offset rows after the current row (if IGNORE NULLS is specified, NULLs are not considered); if no such element exists (exceeding the partition range), return default | +No | +|
| lag | +Return the element offset rows before the current row (if IGNORE NULLS is specified, NULLs are not considered); if no such element exists (exceeding the partition range), return default | +No | +|
| Rank Function | +rank | +Return the sequence number of the current row in the entire partition; rows with the same value have the same sequence number, and there may be gaps between sequence numbers | +No | +
| dense_rank | +Return the sequence number of the current row in the entire partition; rows with the same value have the same sequence number, and there are no gaps between sequence numbers | +No | +|
| row_number | +Return the row number of the current row in the entire partition; note that the row number starts from 1 | +No | +|
| percent_rank | +Return the sequence number of the current row's value in the entire partition as a percentage; i.e., (rank() - 1) / (n - 1), where n is the number of rows in the entire partition | +No | +|
| cume_dist | +Return the sequence number of the current row's value in the entire partition as a percentage; i.e., (number of rows less than or equal to it) / n | +No | +|
| ntile | +Specify n to number each row from 1 to n. | +No | +
| Frame 属性 | -属性值 | -值描述 | -
|---|---|---|
| 类型 | -ROWS | -通过行号来划分 frame | -
| GROUPS | -通过 peers 来划分 frame，即值相同的行视为同等的存在。peers 中所有的行分为一个组，叫做 peer group | -|
| RANGE | -通过值来划分 frame | -|
| 起始和终止位置 | -UNBOUNDED PRECEDING | -整个 partition 的第一行 | -
| offset PRECEDING | -代表前面和当前行「距离」为 offset 的行 | -|
| CURRENT ROW | -当前行 | -|
| offset FOLLOWING | -代表后面和当前行「距离」为 offset 的行 | -|
| UNBOUNDED FOLLOWING | -整个 partition 的最后一行 | -
| 窗口函数分类 | -窗口函数名 | -函数定义 | -是否支持 FRAME 子句 | -
|---|---|---|---|
| Aggregate Function | -所有内置聚合函数 | -对一组值进行聚合计算，得到单个聚合结果。 | -是 | -
| Value Function | -first_value | -返回 frame 的第一个值，如果指定了 IGNORE NULLS 需要跳过前缀的 NULL | -是 | -
| last_value | -返回 frame 的最后一个值，如果指定了 IGNORE NULLS 需要跳过后缀的 NULL | -是 | -|
| nth_value | -返回 frame 的第 n 个元素（注意 n 是从 1 开始），如果有 IGNORE NULLS 需要跳过 NULL | -是 | -|
| lead | -返回当前行的后 offset 个元素（如果有 IGNORE NULLS 则 NULL 不考虑在内），如果没有这样的元素（超过 partition 范围），则返回 default | -否 | -|
| lag | -返回当前行的前 offset 个元素（如果有 IGNORE NULLS 则 NULL 不考虑在内），如果没有这样的元素（超过 partition 范围），则返回 default | -否 | -|
| Rank Function | -rank | -返回当前行在整个 partition 中的序号，值相同的行序号相同，序号之间可能有 gap | -否 | -
| dense_rank | -返回当前行在整个 partition 中的序号，值相同的行序号相同，序号之间没有 gap | -否 | -|
| row_number | -返回当前行在整个 partition 中的行号，注意行号从 1 开始 | -否 | -|
| percent_rank | -以百分比的形式，返回当前行的值在整个 partition 中的序号；即 (rank() - 1) / (n - 1)，其中 n 是整个 partition 的行数 | -否 | -|
| cume_dist | -以百分比的形式，返回当前行的值在整个 partition 中的序号；即 (小于等于它的行数） / n | -否 | -|
| ntile | -指定 n，给每一行进行 1～n 的编号。 | -否 | -
| Frame 属性 | +属性值 | +值描述 | +
|---|---|---|
| 类型 | +ROWS | +通过行号来划分 frame | +
| GROUPS | +通过 peers 来划分 frame，即值相同的行视为同等的存在。peers 中所有的行分为一个组，叫做 peer group | +|
| RANGE | +通过值来划分 frame | +|
| 起始和终止位置 | +UNBOUNDED PRECEDING | +整个 partition 的第一行 | +
| offset PRECEDING | +代表前面和当前行「距离」为 offset 的行 | +|
| CURRENT ROW | +当前行 | +|
| offset FOLLOWING | +代表后面和当前行「距离」为 offset 的行 | +|
| UNBOUNDED FOLLOWING | +整个 partition 的最后一行 | +
| 窗口函数分类 | +窗口函数名 | +函数定义 | +是否支持 FRAME 子句 | +
|---|---|---|---|
| Aggregate Function | +所有内置聚合函数 | +对一组值进行聚合计算，得到单个聚合结果。 | +是 | +
| Value Function | +first_value | +返回 frame 的第一个值，如果指定了 IGNORE NULLS 需要跳过前缀的 NULL | +是 | +
| last_value | +返回 frame 的最后一个值，如果指定了 IGNORE NULLS 需要跳过后缀的 NULL | +是 | +|
| nth_value | +返回 frame 的第 n 个元素（注意 n 是从 1 开始），如果有 IGNORE NULLS 需要跳过 NULL | +是 | +|
| lead | +返回当前行的后 offset 个元素（如果有 IGNORE NULLS 则 NULL 不考虑在内），如果没有这样的元素（超过 partition 范围），则返回 default | +否 | +|
| lag | +返回当前行的前 offset 个元素（如果有 IGNORE NULLS 则 NULL 不考虑在内），如果没有这样的元素（超过 partition 范围），则返回 default | +否 | +|
| Rank Function | +rank | +返回当前行在整个 partition 中的序号，值相同的行序号相同，序号之间可能有 gap | +否 | +
| dense_rank | +返回当前行在整个 partition 中的序号，值相同的行序号相同，序号之间没有 gap | +否 | +|
| row_number | +返回当前行在整个 partition 中的行号，注意行号从 1 开始 | +否 | +|
| percent_rank | +以百分比的形式，返回当前行的值在整个 partition 中的序号；即 (rank() - 1) / (n - 1)，其中 n 是整个 partition 的行数 | +否 | +|
| cume_dist | +以百分比的形式，返回当前行的值在整个 partition 中的序号；即 (小于等于它的行数） / n | +否 | +|
| ntile | +指定 n，给每一行进行 1～n 的编号。 | +否 | +
| Frame 属性 | -属性值 | -值描述 | -
|---|---|---|
| 类型 | -ROWS | -通过行号来划分 frame | -
| GROUPS | -通过 peers 来划分 frame，即值相同的行视为同等的存在。peers 中所有的行分为一个组，叫做 peer group | -|
| RANGE | -通过值来划分 frame | -|
| 起始和终止位置 | -UNBOUNDED PRECEDING | -整个 partition 的第一行 | -
| offset PRECEDING | -代表前面和当前行「距离」为 offset 的行 | -|
| CURRENT ROW | -当前行 | -|
| offset FOLLOWING | -代表后面和当前行「距离」为 offset 的行 | -|
| UNBOUNDED FOLLOWING | -整个 partition 的最后一行 | -
| 窗口函数分类 | -窗口函数名 | -函数定义 | -是否支持 FRAME 子句 | -
|---|---|---|---|
| Aggregate Function | -所有内置聚合函数 | -对一组值进行聚合计算，得到单个聚合结果。 | -是 | -
| Value Function | -first_value | -返回 frame 的第一个值，如果指定了 IGNORE NULLS 需要跳过前缀的 NULL | -是 | -
| last_value | -返回 frame 的最后一个值，如果指定了 IGNORE NULLS 需要跳过后缀的 NULL | -是 | -|
| nth_value | -返回 frame 的第 n 个元素（注意 n 是从 1 开始），如果有 IGNORE NULLS 需要跳过 NULL | -是 | -|
| lead | -返回当前行的后 offset 个元素（如果有 IGNORE NULLS 则 NULL 不考虑在内），如果没有这样的元素（超过 partition 范围），则返回 default | -否 | -|
| lag | -返回当前行的前 offset 个元素（如果有 IGNORE NULLS 则 NULL 不考虑在内），如果没有这样的元素（超过 partition 范围），则返回 default | -否 | -|
| Rank Function | -rank | -返回当前行在整个 partition 中的序号，值相同的行序号相同，序号之间可能有 gap | -否 | -
| dense_rank | -返回当前行在整个 partition 中的序号，值相同的行序号相同，序号之间没有 gap | -否 | -|
| row_number | -返回当前行在整个 partition 中的行号，注意行号从 1 开始 | -否 | -|
| percent_rank | -以百分比的形式，返回当前行的值在整个 partition 中的序号；即 (rank() - 1) / (n - 1)，其中 n 是整个 partition 的行数 | -否 | -|
| cume_dist | -以百分比的形式，返回当前行的值在整个 partition 中的序号；即 (小于等于它的行数） / n | -否 | -|
| ntile | -指定 n，给每一行进行 1～n 的编号。 | -否 | -
| Frame 属性 | +属性值 | +值描述 | +
|---|---|---|
| 类型 | +ROWS | +通过行号来划分 frame | +
| GROUPS | +通过 peers 来划分 frame，即值相同的行视为同等的存在。peers 中所有的行分为一个组，叫做 peer group | +|
| RANGE | +通过值来划分 frame | +|
| 起始和终止位置 | +UNBOUNDED PRECEDING | +整个 partition 的第一行 | +
| offset PRECEDING | +代表前面和当前行「距离」为 offset 的行 | +|
| CURRENT ROW | +当前行 | +|
| offset FOLLOWING | +代表后面和当前行「距离」为 offset 的行 | +|
| UNBOUNDED FOLLOWING | +整个 partition 的最后一行 | +
| 窗口函数分类 | +窗口函数名 | +函数定义 | +是否支持 FRAME 子句 | +
|---|---|---|---|
| Aggregate Function | +所有内置聚合函数 | +对一组值进行聚合计算，得到单个聚合结果。 | +是 | +
| Value Function | +first_value | +返回 frame 的第一个值，如果指定了 IGNORE NULLS 需要跳过前缀的 NULL | +是 | +
| last_value | +返回 frame 的最后一个值，如果指定了 IGNORE NULLS 需要跳过后缀的 NULL | +是 | +|
| nth_value | +返回 frame 的第 n 个元素（注意 n 是从 1 开始），如果有 IGNORE NULLS 需要跳过 NULL | +是 | +|
| lead | +返回当前行的后 offset 个元素（如果有 IGNORE NULLS 则 NULL 不考虑在内），如果没有这样的元素（超过 partition 范围），则返回 default | +否 | +|
| lag | +返回当前行的前 offset 个元素（如果有 IGNORE NULLS 则 NULL 不考虑在内），如果没有这样的元素（超过 partition 范围），则返回 default | +否 | +|
| Rank Function | +rank | +返回当前行在整个 partition 中的序号，值相同的行序号相同，序号之间可能有 gap | +否 | +
| dense_rank | +返回当前行在整个 partition 中的序号，值相同的行序号相同，序号之间没有 gap | +否 | +|
| row_number | +返回当前行在整个 partition 中的行号，注意行号从 1 开始 | +否 | +|
| percent_rank | +以百分比的形式，返回当前行的值在整个 partition 中的序号；即 (rank() - 1) / (n - 1)，其中 n 是整个 partition 的行数 | +否 | +|
| cume_dist | +以百分比的形式，返回当前行的值在整个 partition 中的序号；即 (小于等于它的行数） / n | +否 | +|
| ntile | +指定 n，给每一行进行 1～n 的编号。 | +否 | +