标准差值越接近于零,说明样本数据余越集中分布 STDDEV_SAMP(VALUE) --标准差 STDDEV_POP(VALUE) --总体标准差: --变异函数 --随机场、空间内的两点之差的方差。 --反应了空间内点的离散程度 VAR_SAMP(VALUE) --变异函数: VAR_POP(VALUE) --全体变异函数: --分布函数 --若已知数轴上点的分布函数,则可...
low - the minimum data value in the variable (used in computations using the F() function. high - the maximum data value in the variable (used in computations using the F() function. rowsPerRead number of rows to read at a time. verbose integer value. If 0, no additional output is ...
Predicting Next Value Using Keras Setting Up and Managing the User Environment Installing Python Script Files Running Keras Script with APPLY Table Operator Cleaning Up Sentiment Analysis Setting Up and Managing the User Environment Installing Python Script Files Running Sentiment Analysis with...
IS_INTEGER IS_OBJECT IS_SCALAR IS_SMALLINT IS_VARCHAR JSON_TYPEOF VARBYTE 関数 FROM_HEX FROM_VARBYTE TO_HEX TO_VARBYTE ウィンドウ関数 AVG COUNT CUME_DIST DENSE_RANK FIRST_VALUE LAG LAST_VALUE LEAD LISTAGG MAX MEDIAN MIN NTH_VALUE NTILE PERCENT_RANK PERCENTILE_CONT PERCENTILE_DISC RANK...
8、l CHAR(2) TITLE 集团级别 ,STAT_Item_Code CHAR(2) TITLE 统计项 ,STAT_Value DECIMAL(18,2) TITLE 统计值 ) PRIMARY INDEX (ORG_NUM);例子:pmart.RPT_NM_GRP_PRE_WARN_MON 内蒙移动集团客户预警指标月报表假设原有1286449条记录插入:152853条记录耗时:15秒8 6/15/2021表属性:Set & MultiSet (...
Tera Blog 收藏 Teradata SQL调优 1.优化过程:依照运行时间,数据量和复杂度来定位瓶颈。 查看sql执行计划,判断其合理性。 性能监控 ==》目标选取 ==》性能分析 ==》过程优化 ==》运行跟踪(性能监控) 注意:每个过程中都会产生必须的文档 2.性能分析: ? Review PDM --表定义 --PI的选择 --表的记录数与空间...
rxCubecan compute group means, so we can compute the mean offraudRiskfor every combination ofnumTransandnumIntlTrans. We use theF()notation to have integer variables treated as categorical variables (with a level for each integer value). The low and high levels specified incolInfowill ...
Type: integer. Only applied for version 2.0. Returns: the maxRespSize value.password public SecretBase password() Get the password property: Password for authentication. Returns: the password value.portNumber public Object portNumber() Get the portNumber property: The port numbers when connecti...
BlockSize Integer The block size, in bytes, that's used when returning data to the client. The default value is 1048576 (1 MB). The minimum value is 256 bytes. The maximum value is 16775168 bytes. This property is in the Advanced Editor pane. BufferMaxSize Integer The total maximum size...
21、 tx_date, kpi_code , kpi_value from pview.vw_kpi_day where kpi_code=16 union sel proc_dt tx_date, kpi_code , kpi_value from pview.vw_kpi_day where kpi_code=22 ) t1 where tx_date = 20070701 需要访问表pview.vw_kpi_day 7 次,效率低下,teradata扩展sql(4) 临时表,create volati...